| Oracle® TimesTen In-Memory Database Installation Guide 11g Release 2 (11.2.2) Part Number E21632-09 |
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PDF · Mobi · ePub |
| Oracle® TimesTen In-Memory Database Installation Guide 11g Release 2 (11.2.2) Part Number E21632-09 |
|
|
PDF · Mobi · ePub |
This chapter contains configuration information that you should review before installing TimesTen on your system, in the sections:
Considerations for locations of database files and other user files
Pre-Install requirements for operating system group and file permissions
You can find a description of the procedures to install, configure and uninstall TimesTen:
Note:
This document does not discuss TimesTen installation on an Exalytics system, as TimesTen is preinstalled on Exalytics. Go to the following location for Exalytics documentation:http://www.oracle.com/technetwork/documentation/exalytics-doc-1645656.html
This chapter also contains information to help you further configure TimesTen after installation, work with the demo applications, migrate databases to this release and view the TimesTen documentation:
This chapter contains information that helps you troubleshoot problems that may arise during the installation process and a link to licensing information:
On UNIX, you can install multiple instances of TimesTen. On Windows, you can install only one instance of any major TimesTen release, where a major release is indicated by the first three parts of the release number, such as 11.2.2. For example, you can install both 11.2.1.9.0 and 11.2.2.3.0 on the same Windows computer, but you cannot install both 11.2.2.0.0 and 11.2.2.3.0.
You can retrieve information about the TimesTen instance name, release number and port settings using the ttVersion utility.
The TimesTen product can be installed onto local, private disk storage, such that each computer has a private copy of the entire TimesTen installation. Installing a single copy of the TimesTen software onto a shared storage location and then sharing this copy among several computers is not a supported configuration.
The following sections provide more information about the TimesTen installation instance:
The instance name is the key used to access all necessary information about that particular installation of TimesTen.
On Windows, the TimesTen installation scripts do not prompt you to supply an instance name. The instance name on Windows is tt1122_32 on 32-bit systems and tt1122_64 on 64-bit systems.
On UNIX systems, by default, the instance name for this release is tt1122_32 on 32-bit systems and tt1122_64 on 64-bit systems. The default location is the TimesTen directory in the home directory of the user installing TimesTen. The instance name is case-insensitive, must be at least one alphanumeric character and up to 255 characters. The name can include underscores ( _ ) or periods (.), but no other special characters.
To install a second instance of the same TimesTen release, you must supply a unique instance name and port number. The TimesTen installation script can detect if an instance of the particular release of TimesTen exists on the computer and prompts you for a new instance name and port number for the main TimesTen daemon.
Any time that you install multiple instances of TimesTen on the same computer, specify a unique TCP/IP port number for each TimesTen daemon during the install.
However, all TimesTen databases that replicate to each other must use the same daemon port number unless the -remoteDaemonPort option is specified in duplicate operations. This port number is set at install time. You can use the ttVersion utility to verify the port number of your installation of TimesTen.
The port on which the TimesTen cache agent listens is determined by the operating system and cannot be configured separately.
TimesTen enables you to select the components of TimesTen that you want to install.
On UNIX, you can install the following components. In addition, the installation script prompts you to install the TimesTen Quick Start and documentation.
If you have installed TimesTen and you would like to add or remove components, you must run the installer and select the option "Upgrade an existing instance," and then select the instance which you would like to change.
On Windows you can install one or more of the following components by checking the appropriate boxes during installation.
| Type | Description |
|---|---|
| TimesTen Data Manager | Installs the TimesTen Data Manager. Use this installation to run the TimesTen Data Manager locally. |
| TimesTen Data Manager Debug Libraries | Installs the TimesTen Data Manager debug libraries. Used particularly during the development phase to allow you to debug problems that may occur. By default, the debug libraries are not installed. |
| TimesTen Server | Installs the TimesTen Data Server. Use this installation to:
|
| TimesTen Client | Installs the TimesTen Client. Use this installation to allow the TimesTen Client to access the TimesTen Server on a remote computer.
Note: In the Windows 64-bit installer, there are options for the 64-bit client and the 32-bit client. You can install both (default), either, or neither. |
| TimesTen Quick Start | Installs the TimesTen Quick Start, which includes demos. |
| TimesTen Documentation | Installs the TimesTen Documentation Library. |
Before installing TimesTen, ensure the appropriate requirements are met for your operating system.
On both UNIX and Windows platforms where JDBC is supported you must have the appropriate version of the JDK installed on your computer to use JDBC.
For improved JDBC performance on TimesTen, when using a XenNet virtual device, configure the LargeSendOffload parameter to FALSE. By default, the LargeSendOffload parameter is set to TRUE for the XenNet virtual device. This parameter can be modified either in the Windows registry or in the Advanced tab of the XenNet properties dialog.
In addition, be aware that if you use automatic client failover, to accommodate a firewall you must specify a UDP port or port range. (Also see "Configuring automatic client failover" in Oracle TimesTen In-Memory Database Operations Guide.)
This section also discusses the platform-specific prerequisites:
In general, on UNIX systems, you must configure the following:
The number of semaphores
Allowable shared memory
In addition, you may need to perform the following:
Ensure you have the latest operating system patches.
Configure your file system to allow large files.
Configure your Java environment.
Configure your Client/Server environment.
Configure network settings for replication.
The following sections outline some changes that may be required on any UNIX system. In addition, some of these sections describe changes required for each specific UNIX platform on which TimesTen is supported.
On the Veritas file system, if you plan to have TimesTen applications that use DurableCommits=1, use the mincache=direct and convosync=direct options to ensure durability.
Options that convert dsync into sync or fdatasync into sync or those that treat all writes such that the file is opened with O_SYNC should be avoided.
On the Veritas file system you should also set the options discovered_direct_iosz and max_direct_iosz to 3 MB.
The absence of these direct I/O settings could result in poor file system performance for TimesTen operations.
To set these options, log in as root and use:
# /usr/sbin/vxtunefs -o discovered_direct_iosz=3145728 # /usr/sbin/vxtunefs -o max_direct_iosz=3145728
Using vxtunefs online option requires Advanced VxFS.
TimesTen consumes one SEMMNI per active database, plus one additional SEMMNI per TimesTen instance where Client/Server communication is done through shared memory. For each active database, TimesTen consumes 155 SEMMSL, plus one SEMMSL for each connection.
For example, if the value of the Connections attribute is set to 100, then TimesTen requires a minimum of 255 SEMMSL. It is best to set parameter to a higher value, for example for Linux x8664 to support 2000 connections you should set
kernel.sem = 2200 6400 200 25
Note:
You can use the following formula as a guide, although in practice,
SEMMNS and SEMMNU can be much less than SEMMNI * SEMMSL because not every program in the system needs semaphores.
SEMMNS=SEMMNU = (SEMMNI * SEMMSL)
For more information about the Connections attribute, see the "Connection Attributes" chapter in the Oracle TimesTen In-Memory Database Reference.
If you are running JDBC, install the latest JDK and any vendor required patches. Refer to the website of the JDK provider for the patches you may need.
To run 64-bit Java applications on all systems except AIX systems, if you are using the Sun 64-bit JVM, you may need to pass the -d64 option on the java command line.
The maximum number of concurrent IPC connections to a TimesTen Server allowed by TimesTen is 9,999. However, system limits can take precedence on the number of connections to a single DSN. Client/Server users can increase the file descriptor limit to support a large number of connections and processes.
For example, on Solaris, you may change the file descriptor limit to have a maximum of 1024 simultaneous server connections by adding the following line to /etc/system:
set rlim_fd_max = 1080
In this case, 1080 is greater than the number of anticipated client/server connections and allows for a few extra connections.
On AIX, before installation, set the kernel parameter sb_max to a minimum of 512 KB if you plan to use replication. The replication agent requests TCP send and receive buffers of a minimum size of 512 KB. The value may be changed using the following command.
# /usr/sbin/no -p -o sb_max=524288
To query the value, use the following command:
# /usr/sbin/no -o sb_max
On AIX 5.3 systems with the required patch levels, TimesTen can use large pages. Using large pages locks the shared segment into memory so it cannot be paged. Users must have the CAP_BYPASS_RAC_VMM and CAP_PROPAGATE capabilities. The capabilities are granted by a root user by editing the /etc/security/user file or for locally authenticated users with:
# chuser capabilities=CAP_BYPASS_RAC_VMM,CAP_PROPAGATE user_id
The system default is to not have any memory allocated to the large page physical memory pool. You can use the vmo command to configure the size of the large page physical memory pool. The following example allocates 4 GB to the large page physical memory pool:
# vmo -r -o lgpg_regions=256 -o lgpg_size=16777216
To use large pages for shared memory, you must enable the SHM_PIN shmget() system call with the following command, which persists across system restarts:
# vmo -p -o v_pinshm=1
If you plan to use PL/SQL with AIX versions preceding 6.1, enable the AIO (Asynchronous Input Output) device drivers on the system where the TimesTen software is installed. To manually enable asynchronous I/O:
Start smitty aio.
Run Change/Show Characteristics of Asynchronous I/O.
Set the STATE to be configured at system restart as available.
This procedure is neither applicable nor feasible in AIX Version 6.1, where AIO is enabled dynamically.
Note:
The above procedure does not require a system restart.For Linux, TimesTen has been tested with releases of Oracle Linux, Asianux, Red Hat Enterprise Linux, the MontaVista Linux Carrier Grade Edition, and SuSE LINUX Enterprise Server. Consult Oracle TimesTen In-Memory Database Release Notes for details about supported releases.
Important:
Because Oracle Database does not support MontaVista Linux Carrier Grade Edition, there are significant restrictions to TimesTen functionality on that platform. See the release notes for details.The C development tools are required if you intend to do native development.
On Linux, before installation, the following sections describe steps you can perform to improve the performance of TimesTen on your system:
Large pages can be enabled only if the running Linux kernel supports large pages (also called "huge pages" in the Linux community).
If large pages are supported by the kernel, there should be special files in the /proc directory that indicate the number and size of the large pages.
On Linux 2.4.x systems, the /proc/sys/vm/hugetlb_pool indicates the total size of the large pages.
On 2.6.x systems, the /proc/sys/vm/nr_hugepages file indicates the total number of large pages.
You can change the total number and size of the large pages by changing the contents of those files. For example, you can use:
echo 32 > /proc/sys/vm/nr_hugepages
To see the number and size of the allocated large pages:
cat /proc/meminfo
The following output from this command would indicate that you have 16 large pages, each of the size 256 MB for a total of 4 GB:
HugePages_Total: 16 HugePages_Free: 16 Hugepagesize: 262144 kB
Note:
Since large pages must be allocated on a contiguous memory space, the actual large page size allocated may be smaller than requested. Also, the large page size itself is not configurable. The value ofHugepagesize in /proc/meminfo indicates the system's fixed large page size.If PAM (Pluggable Authentication Modules) is enabled, you may need to modify the /etc/security/limits.conf file to increase the memlock limit. By default, the limit is 32 KB.
You must also set /proc/sys/vm/hugetlb_shm_group to the group ID of the user that is running the main TimesTen daemon.
The operating system now is ready for the large page support. To enable this feature on TimesTen, simply set -linuxLargePageAlignment Size_in_MB in the daemon options file (ttendaemon.options).
You should specify the large page alignment size in MB, which is the Hugepagesize value in /proc/meminfo.
After you set up large pages, TimesTen uses as many large pages as possible. If there are not enough pages, TimesTen uses the normal pages after consuming all available large pages.
When TimesTen uses large pages, the HugePages_Free file in /proc/meminfo changes.
For TimesTen to work properly on MontaVista Linux, include the libaio and libelf library packages.
To view existing kernel parameter settings, log in as root and use:
# /sbin/sysctl -a
On Linux systems, the first parameter of kernel.sem must be a minimum of 128. TimesTen uses 155 SEMMSL, plus one for each active connection. You must increase the kernel parameter settings if you plan to use a large number of connections.
For example, if you plan to use 200 connections, we recommend that you add the following line to the /etc/sysctl.conf file:
kernel.sem = 400 32000 100 128
The first parameter is the maximum number of semaphores per array (SEMMSL), the second parameter is maximum semaphores systemwide (SEMMNS), the third parameter is maximum operations per semop call (SEMOPM), and the fourth parameter is maximum arrays (SEMNI).
Then restart or run the following command:
# /sbin/sysctl -p
To increase the shared memory size to 2048 MB, log in as root and edit the /etc/sysctl.conf file by adding the following line.
kernel.shmmax=2147483648
If your configuration is greater than 8 GB, you should also increase the value of the shmall parameter. The value is in KB and should be equal to ceil(SHMMAX/PAGE_SIZE). Page size is generally 4K on x86 systems and 16K on Itanium. For example, for a 64 GB database on Itanium, you should specify the following parameters values:
kernel.shmmax=68719476736 kernel.shmall=4194304
To increase the shared memory size without restarting:
% /sbin/sysctl -w kernel.shmmax=2147483648
If you have your kernel configured with the /proc file system and it is mounted, then the current maximum shared memory segment size (in bytes) can be viewed by the following command:
% cat /proc/sys/kernel/shmmax
You can also change this value by the following command:
% echo 2147483648 > /proc/sys/kernel/shmmax
This command has the same effect as the sysctl command.
On Red Hat Linux systems, to enable more than six ShmIpc Client/Server connections, add the following line to the /etc/sysctl.conf file:
kernel.sem = 270 32000 100 128
Then restart or run the following command.
# /sbin/sysctl -p
For replication, TCP send and receive buffers should be increased to a minimum of 512 KB. To increase the buffers to 4 MB, add the following lines to the /etc/sysctl.conf file:
net.ipv4.tcp_rmem=4096 4194304 4194304 net.ipv4.tcp_wmem=98304 4194304 4194304 net.core.rmem_default=65535 net.core.wmem_default=65535 net.core.rmem_max=4194304 net.core.wmem_max=4194304 net.ipv4.tcp_window_scaling=1
Then restart or run this command:
# /sbin/sysctl -p
For IMDB Cache, TCP send and receive buffers should be increased to even greater values. To make these changes, add the following lines to the /etc/sysctl.conf file:
net.ipv4.tcp_rmem=4096 4194304 4194304 net.ipv4.tcp_wmem=98304 4194304 4194304 net.core.rmem_default=262144 net.core.wmem_default=262144 net.core.rmem_max=4194304 net.core.wmem_max=4194304 net.ipv4.tcp_window_scaling=1 net.ipv4.ip_local_port_range="1024 65000"
Then restart or run this command:
# /sbin/sysctl -p
On Solaris, before installation, the following sections enable you to improve the performance of TimesTen on your system.
In addition to the file system options listed in the section "General UNIX requirements", on Solaris UFS file systems, if you plan to have TimesTen applications that use DurableCommits=1, mount the file system with the -forcedirectio option.
For Solaris 10 and 11 systems, you must create a project to manage system resources, such as shared memory, file descriptors and semaphores.
You can create a group project or a user project.
Note:
If you create a user group, the instance administrator must run thenewtask command each time the TimesTen daemons must be restarted. If the TimesTen daemons start at system start time, add the newtask command to the system startup scripts.For example, to create a group project for the group timesten g500, with 500 GB of shared memory, 4096 semaphores and 65,535 file descriptors:
Login as user root.
Add the group project.
# projadd -G g500 timesten
Modify the shared memory for the group to 500 GB.
# projmod -a -K "process.max-shm-memory=(priv,500GB,deny)" timesten
Modify the maximum number of semaphores to 4096.
# projmod -a -K "process.max-sem-nsems=(priv,4096,deny)" timesten
Note:
For each active database, TimesTen consumes 155SEMMSL, plus one SEMMSL for each connection.Modify the maximum number of file descriptors to 65,535.
# projmod -a -K "process.max-file-descriptor=(priv,65535,deny)" timesten
Run the newtask command before restarting the TimesTen daemons.
# newtask -p timesten -c $$
Or, for example, to create a user project for the user timesten, with 500 GB of shared memory, 4096 semaphores and 65,535 file descriptors:
Login as user root.
Add the user project.
# projadd -U timesten user.timesten
Modify the shared memory for the group to 500 GB.
# projmod -a -K "process.max-shm-memory=(priv,500GB,deny)" user.timesten
Modify the maximum number of semaphores to 4096.
# projmod -a -K "process.max-sem-nsems=(priv,4096,deny)" user.timesten
Note:
For each active database, TimesTen consumes 155SEMMSL, plus one SEMMSL for each connection.Modify the maximum number of file descriptors to 65,535.
# projmod -a -K "process.max-file-descriptor=(priv,65535,deny)" user.timesten
Every user and every group are associated to a default project, which is the project under which their processes are run. The project or process settings used by a user are those that occur first in the /etc/project file. If you have not modified the project file, the system default project settings occur first.
Note:
Do not remove the default project settings from theproject file. Instead, place your project settings at the top of the project file above the default settings.For either the user project method or group project method, you have the following options for associating your project settings with the specified user or group.
Edit the /etc/project file to move the timesten project entry so that it proceeds the default entry.
Or:
Add the following line to a .profile or .cshrc script or execute it before restarting daemons. This uses the project and process settings. This is required if project created with -G only.
# newtask -p timesten -c $$
The TimesTen debug libraries depend on Visual Studio 2003, 2005, 2008, or 2010. If you intend to use the debug libraries, ensure that one of these versions is installed.
On more recent Windows versions, such as Vista, Windows 2008, and Windows 7, you must have Administrator privileges to perform certain operations, such as starting and stopping the TimesTen daemon. If User Account Control is enabled, and you are logged in as the local Administrator, then you can successfully run these operations in the usual way. However, if you are logged in as a member of the TimesTen users group, then you must explicitly invoke these tasks with Windows Administrator privileges.
To start a command prompt window with Windows Administrator privileges, you can right-click the cmd.exe executable. (In Windows 7, for example, this executable is located in the C:\Windows\System32 folder.)
When the command window opens, it will indicate "Administrator" in the title bar.
The TimesTen default installation directories for release 11.2.2 are as follows:
On Windows, C:\TimesTen
On UNIX, $HOME/TimesTen
TimesTen creates temporary files when a transaction frees a large amount of space in a database. In addition, other TimesTen operations, such as large deletes, use the temporary directory when copying files.
The temporary directory is operating system-dependent. Usually it is located according to the following:
On Windows it is according to the %TMP% environment variable. This typically points to a location such as the following, for example:
C:\Documents and Settings\username\Local Settings\Temp
Or the equivalent on Window 7, where C:\Users replaces C:\Documents and Settings.
On Solaris and Linux: /tmp
On HP-UX and AIX: /var/tmp
You can change the location of your temporary directory by setting the TMP environment variable on Windows. On UNIX, you can change the location of your temporary directory by setting the TMPDIR environment variable.
Note:
On Windows, the complete temporary directory path must be less than 190 characters for the installation to complete successfully. In addition, TimesTen does not support file path names that contain multibyte characters. Ensure that the installation path, database path, transaction log path, and temporary file path do not contain any multibyte characters.During installation, if you have elected to install the TimesTen Quick Start, the installer will prompt you for a location for the DemoDataStore directory. By default, this will be located under the info directory that is under the Timesten installation path. We strongly recommend that you choose an alternate location, outside of the TimesTen installation path, for this directory.
We also strongly recommend that you not store any database files (checkpoint and log files) or any other user files anywhere under the TimesTen installation path. Any files under the installation path, including files not installed by TimesTen, may be removed during upgrade or uninstall operations.
The following sections describe creating the operating system groups and setting the correct directory permissions for TimesTen:
For security, we restrict access to the TimesTen installation to members of a single operating system group, under which TimesTen is installed. We refer to this group as the TimesTen users group. Only users that are members of the TimesTen users group are allowed to perform direct driver connections to TimesTen and perform operations on TimesTen databases. Any users connecting to a TimesTen database through a client connection are not required to be members of the TimesTen users group.
The user that installs TimesTen is the instance administrator. The instance administrator must be a member of the TimesTen instance administrators group, and must also be a member of the TimesTen users group.
On Windows, which does not have the same concept of "administrators group" as UNIX, the TimesTen users group is effectively equivalent. Therefore, the instance administrator on a Windows installation must be a member of the TimesTen users group to install TimesTen. In addition, all users who perform a direct driver connection must be a member of the TimesTen users group.
On UNIX, the TimesTen instance administrators group and the TimesTen users group can be the same or different operating system groups:
TimesTen instance administrators group. Any user installing TimesTen must be a member of this group. This group must be granted read and write access to /etc/TimesTen, which contains information about all TimesTen instances installed on the computer.
TimesTen users group. The instance administrator must also be a member of this group to install TimesTen. After installation, only members of this operating system group are allowed to make direct driver connections to TimesTen and perform operations on TimesTen databases.
The details on how to create both operating system groups on UNIX are included in "Creating UNIX TimesTen administrator and users groups".
When installed, read and write permissions on TimesTen files and directories is limited to only members of the TimesTen users group, unless TimesTen was installed as "world accessible." TimesTen processes use these permissions.
The following sections describe directory and file permissions for Windows and UNIX systems.
On Windows, TimesTen files and directories are accessible only to members of the TimesTen users group.
If you choose to install TimesTen as world accessible, which is an option during the installation, TimesTen files and directories are accessible to everyone. In this case, anyone can perform any action on the TimesTen database files and shared memory segments. This is not recommended. Enable this option only if all users on this computer are trusted and you want to disable all operating system-level access control for this installation.
For more information on operating system groups, see "TimesTen instance administrators and TimesTen users groups".
On Windows, information about TimesTen is contained in the operating system registry.
On UNIX, TimesTen maintains a registry of all TimesTen instances installed on a given computer in /etc/TimesTen. The instance registry itself is not required for operation, but it is essential for correct installation and uninstallation of TimesTen. Before installing TimesTen, ensure that, the user installing TimesTen is a member of the administrator's group and has read and write permissions on the /etc/TimesTen directory.
The details on how to set the directory permissions for /etc/TimesTen to the instance administrators group are included in "Creating UNIX TimesTen administrator and users groups".
Note:
Checkpoint files and log files for databases should be installed on separate operating system devices. TimesTen returns a message to the daemon log if the transaction log files and checkpoint files for your databases are on the same operating system device.The following details the pre-installation procedures to create the required operating system groups and set the directory permissions for the UNIX TimesTen install.
During installation, you must specify the TimesTen users group. By default, the TimesTen users group for the instance is the primary operating system group of the user installing TimesTen. If you want the TimesTen users group to be other than the installer's primary group, you must specify the name of the group during installation.
Alternatively, you can make the TimesTen instance world accessible. However, this is not recommended.
The only way to change the TimesTen user group is to uninstall and reinstall the TimesTen instance, providing the new group name during reinstall.
If you do not have an operating system group for TimesTen users, the following outlines certain procedures that must be performed once as user root before installing TimesTen to create the TimesTen users group.
Log in as root.
Create an operating system group under which the TimesTen instance can be installed. In creating this operating system group, we suggest using the name timesten, but you can choose any name that you prefer.
Note:
Throughout this manual, for our examples, we usetimesten to represent the name of the TimesTen users group.Add the user who is installing and any users who are administering TimesTen to the TimesTen users group that you just created.
Provide the name of this group, if different from the default TimesTen users group, during the installation at the appropriate time.
The directory and file permissions for the TimesTen installation have the group specified as the group you defined during the installation. This sets the permissions to restrict read and write access for most directories, files, checkpoint files, transaction log files, shared memory segments, and semaphores to this defined group. There are exceptions for certain resources as determined by TimesTen. See "Directory and file permissions" for more information on permissions.
Note:
On Solaris systems, you must be installed asroot to use MemoryLock with a setting of 1 or 2. Databases in a non-root instance of TimesTen can use settings 3 and 4 for this attribute on Solaris systems.On UNIX platforms, the instance registry is located in the directory /etc/TimesTen. Initial creation of the /etc/TimesTen directory may require root access. Creation of this directory is a once per computer, pre-installation step.
If the user installing TimesTen does not have read and write access to the /etc/TimesTen directory, the following outlines certain procedures that must be performed once as user root before installing TimesTen.
Log in as root.
If the directory /etc/TimesTen does not exist, create it.
# mkdir /etc/TimesTen
The disk space required for the files in this directory is at least 100 KB.
Create an operating system group for the TimesTen instance administrators group. You can name this group as you want. For our examples, we use the name ttadmin.
# groupadd ttadmin
Assign ownership permissions on the /etc/TimesTen directory to the TimesTen instance administrators group so that only the instance administrator may access and execute. At install time, the instance_info file is added to the /etc/TimesTen directory. This file must be readable and writable by the instance administrators group.
Before installing TimesTen, set the permission mode for /etc/TimesTen to 770, and permissions for all files under /etc/TimesTen to 660.
The following commands modify the group ownership of the TimesTen directory to be the ttadmin group and changes the permissions for all files in this directory to read and write for members of the ttadmin group:
# chgrp -R ttadmin /etc/TimesTen # chmod 770 /etc/TimesTen/ # chmod 660 /etc/TimesTen/*
You can now install TimesTen on UNIX systems. The installer verifies the existence and permissions of /etc/TimesTen and fails if the permissions are not correct.
The instance may be installed in any directory to which the TimesTen instance administrator has sufficient permission.
Note:
Before beginning installation, ensure that the prerequisites defined in "Installation prerequisites" have been met.The following sections provide instructions on installing TimesTen on UNIX systems.
To install TimesTen on your UNIX system, follow these steps:
Download the appropriate TimesTen ZIP/TAR file for the current release. File names indicate the platform and release number.
Log in as the TimesTen instance administrator.
Extract the contents of the file.
Change to the platform directory:
% cd platform
For example on a Linux system:
% cd linux86
Run the TimesTen setup script:
% ./setup.sh
Note:
If a user installs TimesTen asroot, the installer gives the following warning: "You are about to install TimesTen as root. TimesTen daemon processes run with root privileges."
If you click OK to install as root, then the instance administrator is root, and any actions or applications that must be performed by the instance administrator must be run as root.
While no options are required to install TimesTen, the setup.sh script takes these options:
| Option | Description |
|---|---|
-install |
Installs TimesTen (enabled by default). |
-uninstall |
Uninstalls TimesTen. |
-batch filename |
Allows installation or uninstallation without prompts. The batch file filename is optional.
If If We recommend that you create the batch file and specifically indicate the instance name of the installation. |
-help |
Displays the help message. |
-installDoc |
Installs the TimesTen documentation. |
-quickstart |
Installs the TimesTen Quick Start. |
-record filename |
Records responses to the installation questions into the file specified by filename. The file can then be used as the parameter to the -batch option. |
-verbose |
Displays extra installation information. |
Enter your response to the setup script prompts.
Note:
To install or uninstall TimesTen without having to respond to prompts, use the-batch flag with the setup.sh script. Batch files from older releases of TimesTen cannot be used to install the current release. All new prompts in the installation script for this release are assigned default answers and may produce unexpected results when batch files from different releases are used.
We recommend that you re-create the response file using -record each time changes are made. Because answers to new installation questions may not be present in the original silent installation response file, unexpected results can occur.
The setup script performs the following actions (unless your answers resulted in termination of the installation process).
Prompts you to choose one of the following:
Install a new instance.
Upgrade an existing instance. (This option enables you to upgrade from a release preceding the TimesTen 11.2.2 release.)
Display information about an existing instance.
Quit the installation.
Prompts you to choose the default instance name or choose an instance name for your TimesTen instance.
Note:
Each TimesTen installation is identified by a unique instance name. The instance name must at least one alphanumeric string and no longer than 255 characters.Prompts you to install one of the following components:
Client/Server and Data Manager
Data Manager only
Client only
Prompts you for the location of your TimesTen instance. By default installs the instance in $HOME/TimesTen. The TimesTen documentation refers to the installation directory as install_dir.
Prompts you for the location of the TimesTen daemon home directory.
Prompts you for the location of TimesTen daemon log files. The default is install_dir/info.
Prompts you to specify the daemon port number. (The default port number is shown.)
Prompts you to set the TimesTen users group or choose world accessibility. For more information on these options, see "Pre-Install requirements for operating system group and file permissions" for details on the TimesTen users group and file permissions. You can do the following:
Restrict access to group default group.
Restrict access to a different group.
Make the TimesTen instance world accessible (not recommended). Choose this option only if all users on this computer are trusted and you want to disable all operating system-level access control for this installation.
Prompts you to confirm whether PL/SQL should be enabled for the instance. The default answer is "yes". If not enabled at install time, PL/SQL can be enabled for the instance at a later time using the ttmodinstall utility.
Note:
Enabling PL/SQL is encouraged, although it increases the size of some TimesTen libraries. Some features and functionality depend on it.Prompts you to set the location to be supplied for the TNS_ADMIN environment variable that specifies the directory where the tnsnames.ora file can be found.
You can leave this field blank. If you do not specify the location at install time, you can set it later with the ttmodinstall utility. However, you must specify it before using the In-Memory Database Cache.
Prompts you to specify the server port number. (The default port number is shown.) Installs the client and server components.
Prompts you to install Quick Start and the TimesTen documentation. The TimesTen Quick Start applications can take up to 64 MB of disk space. The default directory is install_dir/quickstart and install_dir/doc.
Prompts for the location of where to install the demo database. This indicates that when you install the Quick Start, the TimesTen demo database files are installed in the DemoDataStore directory that defaults to the install_dir/info/DemoDataStore location. See the section "Considerations for locations of database files and other user files" for suggestions on selecting a location for the DemoDataStore.
Installs the client components.
Prompts you to indicate whether you want to install TimesTen replication with Oracle Clusterware. Prompts you for the path into which to install the Oracle Clusterware installation on this computer and the port number for the TimesTen Clusterware agent.
The install checks for any nodes where the Oracle Clusterware is currently configured and prompts you to specify a node list for TimesTen replication with Oracle Clusterware.
Removes any previous installation of this release of TimesTen if you are installing an upgrade.
Installs the TimesTen components into the appropriate directories.
Starts the daemon.
The daemon writes a timestend.pid file into the directory from which the daemon was started. By default, this is install_dir/info. This file contains the daemon process ID. When the process terminates, the timestend.pid file is removed.
Note:
TimesTen writes a message to the daemon log if the transaction log files and checkpoint files for your databases are on the same device.If you want the TimesTen instance to start each time the computer is restarted, run the setuproot script as root. The setuproot script is located in the install_dir/bin directory:
# cd install_dir/bin
# setuproot -install
The TimesTen main daemon (timestend) starts automatically when the operating system is booted and operates continually in the background. Application developers do not interact with timestend directly; no application code runs in the daemon and application developers do not, in general, have to be concerned with it. Application programs that use TimesTen databases communicate with the daemon transparently by using TimesTen internal routines.
There are situations, however, when you may have to start and stop the daemon manually, using the TimesTen main daemon startup script. This section explains how to start and stop the daemon. If you have installed the TimesTen Server, it starts automatically when the TimesTen daemon is started and stops automatically when the TimesTen daemon is stopped.
Note:
You must be the TimesTen instance administrator or haveroot privileges to interact with the TimesTen daemon.To stop the daemon manually, use the utility command:
% ttDaemonAdmin -stop
To start the daemon manually, use the utility command:
% ttDaemonAdmin -start
As the TimesTen daemon operates, it generates error, warning, informational and debug messages for TimesTen system administration and for debugging applications. At installation time, you determine whether these messages go into a file, which is typical, or to the syslog facility. Using the syslog facility is discouraged, but you can take the following steps to use it if you have valid reason.
If messages are logged using the syslog, the LOG_USER syslog facility is used by default.
To specify the syslog facility used to log TimesTen Daemon and subdaemon messages, on a separate line of the ttendaemon.options file add:
-facility name
Possible name values are: auth, cron, daemon, local0-local7, lpr, mail, news, user, or uucp.
The syslog facility allows messages to be routed in a variety of ways, including recording them to a file. The disposition of messages is under the control of the configuration file, /etc/syslog.conf.
Entries in the syslog.conf file contain two columns. The first column contains a list of the types of messages to log to a particular file. The second column contains the name of the log file. A tab appears between the message type and file name. Each entry in the syslog.conf file has the format: message_type file_name. Message types are specified in two parts:
subsystem-facility.severity-level
Depending on the configuration specified in that file, messages can be logged into various files. For the TimesTen daemon, specify the message types: user.debug, user.info, user.warn and user.err. You can also use the wildcard character * to represent the subsystem-facility. Since debug messages are ranked highest, specifying *.debug or user.debug is sufficient in preparing a file for the support or error log. In a message type list, delimit items by semi-colons. For example:
*.debug /var/adm/syslog/syslog.log user.err; user.warn; user.info /var/adm/messages
To make changes to /etc/syslog.conf, you must have root privileges. Changes only take effect after the syslog daemon (syslogd) process is terminated (with the command kill -1) and restarted.
For further details, see your operating system documentation for syslog.conf or syslogd for information on configuring this file.
Note:
If the/etc/syslog.conf file does not exist on your system, create one according to the syslog.conf manual page so the daemon can log its data to the syslog facility.To determine if your syslog configuration file is set up correctly, run the TimesTen ttSyslogCheck utility. Finally, after syslogd has been set up correctly, you may use the TimesTen ttDaemonLog utility to view only those messages in the system log file that TimesTen logged.
Though the instance registry enforces TCP/IP port uniqueness for TimesTen instances, the possibility of the TimesTen main daemon port conflicting with ports used by non-TimesTen applications always exists.
The ttmodinstall utility allows the instance administrator to change the port number on which the main TimesTen daemon listens. If you have not stopped the TimesTen daemon before using ttmodinstall, the utility stops the daemon before changing the port number. After the port change, the daemon is automatically restarted. This feature is useful if you install TimesTen and later find that the port is in use.
The utility is run from the command line and takes the -port option with the new port number as an argument. For example:
% ttmodinstall -port 12345
See the Oracle TimesTen In-Memory Database Reference for more details on ttmodinstall.
To uninstall all TimesTen components, follow these steps:
Log in as the TimesTen instance administrator.
The TimesTen setup script is in the install_dir/bin directory. Run the script with the -uninstall option in a directory outside of the installation directory, by typing:
% install_dir/bin/setup.sh -uninstall
Uninstalling the system removes all TimesTen libraries and executables and also stops and uninstalls the daemon and Server. You can execute ps to verify that all TimesTen processes have terminated. To verify that TimesTen has been successfully uninstalled, verify that the install_dir no longer exists.
This section discusses installation and related issues for Windows systems.
TimesTen provides separate installers for 32-bit and 64-bit installations. On Windows 64-bit systems, you can do either a 64-bit installation (typical) or a 32-bit installation, but you cannot do both a 64-bit installation and a 32-bit installation of the same release. (You could, however, have a 64-bit installation of the 11.2.2.2.0 release and a 32-bit installation of the 11.2.1.9.0 release, for example.)
Notes:
You can install both the 64-bit client and the 32-bit client from a 64-bit installation.
Before beginning installation, ensure that the prerequisites defined in "Installation prerequisites" have been met.
To install TimesTen on your Windows system, follow these steps:
Download the appropriate TimesTen ZIP file for the current release. File names indicate the platform and release number.
Extract the contents of the file.
Run the setup.exe executable, which is located in the Win64 or Win32 directory from the ZIP file. A program takes you through the installation.
Notes:
In Windows 7, you must right-click setup.exe and select "Run as administrator" from the resulting dropdown list. (In earlier Windows versions, you have the necessary administrative privileges by default when you execute setup.exe.)
Each time you execute setup.exe, the install program checks for previous TimesTen installations. On Windows, you can install only one instance of any major TimesTen release, where a major release is indicated by the first three parts of the release number, such as 11.2.1. If a previous version of the same TimesTen major release exists (such as 11.2.1.4.0 if you are trying to install 11.2.1.9.0), the installer returns an error message asking you to uninstall the previous release.
The TimesTen installer performs the following actions.
Prompts you for the location of the installation. By default, TimesTen is installed under C:\TimesTen\tt1122_32 (32-bit installation) or tt1122_64 (64-bit installation).
Prompts you to select the components that you would like to install:
TimesTen Data Manager
TimesTen Data Manager Debug Libraries
TimesTen Server
TimesTen Client
In the 64-bit installation, there are options for both a 64-bit client and a 32-bit client. You can choose both (default), either, or neither. If you install the 32-bit client, it is installed in the tt1122_64\client32 directory.
Optional Components:
Timesten Quick Start
TimesTen Documentation
For more information, see "Components available on Windows".
Prompts for the location to install the demo databases. When you install the TimesTen Quick Start, the demo database files are installed in the DemoDataStore directory that defaults to the following location:
%APPDATA%\TimesTen\DemoDataStore\
This is a location such as the following, for example:
C:\Documents and Settings\username\Application Data\TimesTen\DemoDataStore\
Or the equivalent on Window 7, where C:\Users replaces C:\Documents and Settings. For example:
C:\Users\username\Application Data\TimesTen\DemoDataStore\
Note that Application Data may be a symbolic link (to AppData\Roaming on Windows 7, for example). See the section "Considerations for locations of database files and other user files" for suggestions on selecting a location for the demo database files.
Prompts you to set the location to be supplied for the TNS_ADMIN environment variable that specifies the directory where the tnsnames.ora file can be found.
You can leave this field blank. If you do not specify the location at install time, you can set it later with the ttmodinstall utility. However, you must specify it before using the In-Memory Database Cache.
Prompts you to select the Program Folder for the Start Menu. Browse to choose the folder that you want for this installation either from existing folders or a new folder. The default is Timesten 11.2.2 (32-bit) or TimesTen 11.2.2 (64-bit).
Asks if you want permissions on this installation to be readable and writable by anyone who has access to the computer. This is not recommended. If disabled, permissions are restricted to users who are members of the TimesTen users group. See "Pre-Install requirements for operating system group and file permissions" for details on permissions and world accessibility. Choose this option only if you want to disable all operating system-level access control for this installation.
Prompts you to specify whether PL/SQL should be enabled for the instance. By default, it is enabled. If not enabled at install time, PL/SQL can be enabled for the instance at a later time using the ttmodinstall utility.
Prompts you to register environment variables. If selected, the installation program adds TimesTen directories to the system environment variables PATH, LIB, and INCLUDE and sets other appropriate variables. If you decide not to register the environment variables at installation time, you can set the environment variables at any time after installation on a per session basis by running the script install_dir\bin\ttenv.bat. The ttenv script is described in "Setting environment variables for TimesTen".
Note:
This is not advisable if you are installing multiple versions of TimesTen, in which case the path could cause unexpected behavior.Prompts you to select the JDK version, if any, to add to the CLASSPATH variable.
Displays your installation selections before continuing to install TimesTen.
Prompts you to display the release notes and launch the Quick Start Guide. For information on the Quick Start, see "TimesTen Quick Start".
|
Note: TimesTen cannot be installed in a mapped network drive. Attempting to do so results in an error. |
TimesTen enables you to save installation options to a batch file, referred to as a response file, that you can later use to install TimesTen without having to answer each option in a dialog box.
To create a response file in the default location, use the following command:
C:> setup.exe /r
With this command, TimesTen walks you through a normal setup operation and, by default, saves your responses to the file C:\Windows\setup.iss.
To later do a silent installation using the options saved to the default response file, use the following command:
C:> setup.exe /s
This acquires the installation options from the response file. No dialog boxes appear. (Some information pop-up dialogs may still appear, however, such as the one that informs you that the services are being started.)
Alternatively, you can use the f1 option to specify the name and location of the response file.
To create the response file mysetup.iss in C:\Temp, use the following command:
C:> setup.exe /r /f1"C:\Temp\mysetup.iss"
To use this response file for a silent installation, use the following command:
C:> setup.exe /s /f1"C:\Temp\mysetup.iss"
Note:
Batch files from releases older than TimesTen Release 11.2.2 should not be used to install this release. All new prompts in the installation script for this release are assigned default answers and may produce unexpected results when batch files from different releases are used.To verify that TimesTen has been properly installed, check that the driver files are available and that the services are running:
Confirm that the TimesTen 11.2.2 shortcut—for example, "TimesTen 11.2.2 (64-bit)"—appears under All Programs under the Start menu on the Windows Desktop.
On the Windows Desktop, from the Start menu, select Control Panel. Then select Administrative Tools. Then select Data Sources (ODBC). This opens the ODBC Data Source Administrator.
Choose the Drivers tab. Check to see that the TimesTen Data Manager 11.2.2 driver is installed. (If you installed TimesTen Client, that driver should be listed as well. See the next section, "Verifying TimesTen Client and Server installation".) Click OK.
On the Windows Desktop, from the Start menu, select Control Panel. Then select Administrative Tools. Then select Services and check that the TimesTen Data Manager 11.2.2 service has status "Started".
Perform the following steps to verify that the Client and Server have been properly installed.
Note:
The instructions in this section are valid if you are installing 32-bit TimesTen on 32-bit Windows or 64-bit TimesTen on 64-bit Windows. However, if you are installing 32-bit TimesTen on 64-bit Windows, verify the TimesTen ODBC entries by executing the following, which is the 32-bit version of the ODBC Data Source Administrator:%WINDIR%\SysWOW64\odbcad32.exe
On the Windows Desktop, from the Start menu, select Control Panel. Then select Administrative Tools. Then select Data Sources (ODBC). This opens the ODBC Data Source Administrator.
Choose the Drivers tab. Check to see that the TimesTen Client 11.2.2 driver is installed. (You should also see the TimesTen Data Manager 11.2.2 driver. See the preceding section, "Verifying installation".) Click OK.
Note: If you install the 32-bit client in a 64-bit installation, you must use the 32-bit ODBC Data Source Administrator, mentioned in the note above, to view its driver entry.
Choose the System DSN tab.
Select the sampledbCS_1122 sample database and click Configure.
Note:
This step assumes you installed TimesTen Quick Start, which includes the sample databases.
The sampledb_1122 DSN is used for direct connections. The sampledbCS_1122 DSN is used for client/server connections.
This opens the TimesTen Client Data Source Setup dialog.
Click Test Oracle TimesTen Server Connection to attempt a connection to the server.
The ODBC Administrator attempts to connect to the TimesTen Server and displays a message to let you know if it was successful. When you click this button, the TimesTen Client verifies the following:
ODBC, Windows sockets, and the TimesTen Client are installed on the computer.
The TimesTen Server you have selected is defined.
The TimesTen Server is running.
Click Test Data Source Connection to attempt a connection to the data source on the TimesTen Server.
The ODBC Data Source Administrator attempts to connect to the TimesTen data source and displays a dialog to let you know if it was successful. When you click Test Data Source Connection, the TimesTen Client verifies that:
The data source you have chosen is defined on the server.
The TimesTen Client can connect to the data source.
When you install the TimesTen Data Manager, the TimesTen Data Manager Service starts automatically whenever the system restarts. In addition, if you installed the TimesTen Server, it is automatically started whenever the TimesTen Data Manager service is started. You can change the startup mode for the TimesTen Data Manager to require manual startup.
Note:
You must have administrative privileges to set the startup mode or to start and stop the TimesTen Data Manager service.To change the startup mode:
On the Windows Desktop, from the Start menu, select Control Panel. Then select Administrative Tools. Then select Services. This displays all currently available services.
Double-click the TimesTen Data Manager 11.2.2 service to examine its properties dialog.
In the properties dialog, the Startup type list should indicate Automatic (default). You can optionally change it to Manual. In either case, you can click Stop or Start (as applicable) in the properties dialog to stop or start the service. For typical usage, set the Startup type back to the default and click OK when you are through.
TimesTen writes error messages into the tterrors.log file. This file is located in the install_dir\srv\info directory. You can use the ttDaemonLog utility to view messages logged by the TimesTen Data Manager. For a description of the system administration utilities, see "Utilities" in the Oracle TimesTen In-Memory Database Reference.
You can uninstall TimesTen on Windows as you would any other program:
On the Windows Desktop, from the Start menu, select Control Panel.
Select the Add/Remove Programs control panel (or Programs and Features in Windows 7).
In the list of programs, select TimesTen—for example, select "Oracle TimesTen In-Memory Database 11.2.2 (64-bit)".
Click Remove (or Uninstall in Windows 7).
To verify that removal was successful, check the following:
TimesTen 11.2.2 has been removed from All Programs in the Start menu.
TimesTen Data Manager 11.2.2 has been removed from the Services list.
The TimesTen 11.2.2 drivers have been removed from the Drivers tab in the ODBC Data Source Administrator Control Panel.
Notes:
DSNs created by TimesTen installation are removed upon TimesTen uninstallation. DSNs created by users are not removed during TimesTen uninstallation.
See "Verifying installation" for information about the Services list and ODBC Data Source Administrator Control Panel.
To Install TimesTen on an Exalogic system, you follow the prompts in the TimesTen installation scripts as described in the procedures in "Installing TimesTen on UNIX systems". Also, ensure that you have met the prerequisites for Oracle Linux installations. See "Linux prerequisites"
We recommend that you install TimesTen on each of the compute nodes of an Exalogic system.
Note:
Installing TimesTen binaries one time on the shared disk for use on multiple compute nodes is not supported.Some considerations on the location of the TimesTen installation files are:
If the TimesTen checkpoint and transaction log files must reside on the ZFS shared storage, you must add the -allowNetworkFiles option to the ttendaemon.options file. See "Allowing database access over NFS-mounted systems" in the Oracle TimesTen In-Memory Database Operations Guide.
The database and log directory must reside outside the TimesTen Instance home directory to enable simple rolling upgrades.
Specifically, we strongly recommend that the TimesTen installation, checkpoint and transaction log files for each node be stored in the locations shown in Table 1-1.
Table 1-1 Installation, checkpoint file, and transaction log file locations
| Component | Directory |
|---|---|
|
Installation |
|
|
Database |
|
|
Log directory |
|
Install Oracle Clusterware per instructions in the Oracle Clusterware Administration and Deployment Guide.
Follow these recommendations:
Create an NFS share on the ZFS 7320 Storage Appliance to be used for both OCR and the voting disk. Specific NFS parameters are required so that the NFS share can be used as a voting disk, refer to the Oracle Clusterware Administration and Deployment Guide for more details.
Install Clusterware on the ZFS 7320 Storage Appliance. The solid state disk (SSD) file system may not have sufficient space.
Note:
Installing in a shared Oracle home is not recommended as it does not allow rolling upgrades of Oracle Clusterware. Instead, each compute node should have its own installation of Clusterware.Install Clusterware on each compute node. The path to the Clusterware installation must be the same on each compute node. Therefore, it is required to set up a directory structure that allows each compute node to use the same path to access its own Clusterware installation.
On the shared storage, a separate directory exists for each compute node:
For compute node 1, the directory is:
/export/compute_node_1/general
For compute node 2, the directory is:
/export/compute_node_2/general
For compute node n, the directory is:
/export/compute_node_n/general
Use NFS mount to map the node specific directory to the same path on each compute node:
On host 1, do as follows.
mkdir -p /opt/oracle
mount storage-server:/export/compute_node_1/general /opt/oracle
On host 2, do as follows.
mkdir -p /opt/oracle
mount storage-server:/export/compute_node_2/general /opt/oracle
On host n, do as follows.
mkdir -p /opt/oracle
mount storage-server:/export/compute_node_n/general /opt/oracle
On each host, install Oracle Clusterware in /opt/oracle/crs.
On Windows systems, the Windows driver manager supports anything up to Microsoft ODBC 3.5 SDK. TimesTen supports the Microsoft ODBC 2.5 SDK. For any ODBC applications that link with the latest version of the Microsoft ODBC Data Source Administrator (ODBC32.LIB file), the TimesTen driver manager handles the connection using ODBC 2.5.
The ODBC SDK redistributable components are installed in C:\Windows\System32 on Windows systems. Microsoft only permits TimesTen to redistribute portions of the ODBC SDK; those portions are installed automatically (if they are not present). Other components—Microsoft sample programs, online help files, and C language header files—are available separately from Microsoft as part of the Microsoft ODBC SDK, which can be installed separately as required. Additionally, the ODBC C language header files and ODBC online help are bundled as part of Microsoft Visual Studio .NET 2003 or Microsoft Visual Studio 2005, 2008, or 2010. Most TimesTen developers do not need to install the SDK separately.
On UNIX systems, no separate SDK installation is required.
This section describes various environment variables that may have to be set, depending on the features of TimesTen that your application uses. The following table summarizes, in alphabetical order, the environment variables detailed in this section and other parts of this guide. Some of these environment variables are platform-specific.
| Environment variable | What to include | For settings and other information, see: |
|---|---|---|
LIB, LIBPATH, LD_LIBRARY_PATH or SHLIB_PATH |
On UNIX systems, include the lib directory under the TimesTen installation directory. |
"Shared library path environment variable" |
NLS_LANG |
If NLS_LANG is set to as NA, an OCI connection error or the ORA-12705 message is thrown. |
On Windows, if an older version of Oracle has been installed, such as Oracle9i, the registry key HKEY_LOCAL_ computer\Software\ORACLE\NLS_LANG may be set to an invalid value, such as NA. If this value is NA, the TimesTen installer replaces the value with AMERICAN_AMERICA.US7ASCII. This ensures that TimesTen OCI, Pro*C, and IMDB Cache can connect properly. TimesTen uses the Oracle Instant Client to make these connections. The Oracle Instant Client requires this value to be a valid NLS_LANG setting. |
ODBCINI |
Include the location where the odbc.ini file used by TimesTen databases is to be found. |
"ODBCINI environment variable" |
PATH |
Include the bin directory under the TimesTen installation directory. On Windows, also include the path to the Oracle installation if you are using the IMDB Cache option. |
"PATH environment variable", "Shared library path environment variable" and "Installing TimesTen on Windows systems" |
SYSODBCINI |
Set to the location where the sys.odbc.ini file used by TimesTen system databases is to be found. This environment variable should be set in the startup script. |
"SYSODBCINI environment variable" |
SYSTTCONNECTINI |
Set to the location where the sys.ttconnect.ini file used by TimesTen Client applications to define logical server names. |
"SYSTTCONNECTINI environment variable" |
TMP or TMPDIR |
Set to the location of the temporary directory. TimesTen uses this directory during recovery and other operations. | "Default installation directories" |
TNS_ADMIN |
If using IMDB Cache, set to the location of the tnsnames.ora file. Required if you are using the IMDB Cache option. |
"TNS_ADMIN environment variable" |
| Java | For Java applications, there are certain environment variables that must be set. | "Java environment variables" |
The following sections describe environment variables in TimesTen:
If, after installation, you want to set the environment variables to standard TimesTen settings, use the ttenv script. This includes setting paths so that TimesTen utilities can be executed, among other things. You must invoke this script before starting TimesTen in order for any of the changes to take effect.
For UNIX platforms, use either of the following scripts depending on your shell:
install_dir/bin/ttenv.sh install_dir/bin/ttenv.csh
For a Windows platform, use the install_dir/bin/ttenv.bat script.
install_dir\bin\ttenv.bat
Execute the following for a description of the command-line options for ttenv:
source ttenv.csh -help
Or:
. ttenv.sh -help
TimesTen provides utilities for managing and debugging TimesTen applications. To make these utilities readily available, include the bin directory found in install_dir in the PATH environment variable.
Note:
install_dir is the directory where TimesTen is installed.On Windows, the PATH environment variable must also contain the bin directory of the Oracle installation, if you are using the IMDB Cache option.
TimesTen applications use the odbc.ini file to define data sources and their connection attributes. (For a description of connection attributes, see "Connection Attributes" in the Oracle TimesTen In-Memory Database Reference.) By default on UNIX platforms, TimesTen first looks for the .odbc.ini file in the home directory of the user running the TimesTen application. To override the name and location of this file at run-time, set the $ODBCINI environment variable to the path name of an .odbc.ini file before launching the TimesTen application.
If TimesTen cannot locate a user DSN file, TimesTen also looks for the sys.odbc.ini file in install_dir/info. For more information, see "Overview of user and system DSNs" in Oracle TimesTen In-Memory Database Operations Guide.
TimesTen applications use the sys.odbc.ini file to define system data sources and their connection attributes. (For a description of connection attributes, see "Connection Attributes" in the Oracle TimesTen In-Memory Database Reference.) Any user on the computer can use a system data source. On Windows, system DSNs are defined from the System DSN tab of the ODBC Data Source Administrator. On UNIX, system DSNs are defined in the file install_dir/info/sys.odbc.ini. To override the name and location of this file at run-time, set the $SYSODBCINI environment variable to the path name of a sys.odbc.ini file before launching the TimesTen application.
If TimesTen cannot locate a user DSN file, TimesTen also looks for the sys.odbc.ini file in install_dir/info.
For more information, see "Overview of user and system DSNs" in Oracle TimesTen In-Memory Database Operations Guide.
TimesTen client applications use the sys.ttconnect.ini file to define logical server names. For a description of logical server names, see "Working with the TimesTen Client and Server" in the Oracle TimesTen In-Memory Database Operations Guide. By default on UNIX platforms, TimesTen looks in install_dir/sys.ttconnect.ini. To override the name and location of this file at run-time, set the SYSTTCONNECTINI environment variable before launching the TimesTen Client application.
TimesTen also looks for the sys.ttconnect.ini file under install_dir/info.
On Windows systems, logical server names can be configured using the ODBC Data Source Administrator.
On platforms where the IMDB Cache is supported, to work with Oracle data, you must set the TNS_ADMIN environment variable to the path of the tnsnames.ora file.
The ttmodinstall utility with the -tns_admin option enables you to set a value for this environment variable after installation. See the Oracle TimesTen In-Memory Database Reference for more details on ttmodinstall.
On Solaris and Linux systems, add install_dir/lib directory to the LD_LIBRARY_PATH environment variable.
On AIX systems, add install_dir/lib directory to the LIBPATH environment variable.
The following sections provide more detail about the environment variables that affect the environment for TimesTen Java applications.
Java classes and class libraries are found on CLASSPATH. Before executing a Java program that loads any of the TimesTen JDBC drivers, the CLASSPATH environment variable must contain the class library file:
install_dir/ttjdbcjdk_ver.jar
Where jdk_ver indicates the version of the JDK that you are using. For example, for JDK 5.0, jdk_ver is 5 and the file name would be ttjdbc5.jar. For JDK 6.0, jdk_ver is 6 and the file name would be ttjdbc6.jar.
Note:
If multiple JAR files are listed in theCLASSPATH, ensure the TimesTen JAR file is listed first.On UNIX, CLASSPATH elements are separated by colon. For example:
set CLASSPATH .:install_dir/lib/ttjdbc6.jar
Or:
setenv CLASSPATH .:install_dir/lib/ttjdbc6.jar
On Windows, CLASSPATH elements are separated by semicolons.
Also, on Windows, do not use quotes when setting the CLASSPATH environment variable even if a directory path name contains spaces.
For example, this is correct:
set CLASSPATH=.;install_dir/lib/ttjdbc6.jar
This is incorrect:
set CLASSPATH=.;"install_dir/lib/ttjdbc6.jar"
If in doubt about the JDK version you have installed on your system, enter:
> java -version
If you are going to use the JMS/XLA interface, then you also must add the following to your CLASSPATH:
install_dir/lib/timestenjmsxla.jar install_dir/3rdparty/jms1.1/lib/jms.jar install_dir/lib/orai18n.jar
For example, your CLASSPATH would look like the following example (replacing install_dir as appropriate):
.:install_dir/lib/ttjdbc6.jar:install_dir/lib/timestenjmsxla.jar :install_dir/3rdparty/jms1.1/lib/jms.jar:install_dir/lib/orai18n.jar
By default, JMS/XLA looks for a configuration file called jmsxla.xml in the current working directory. To use another name or location for the file, you must specify it as part of the environment variable in the InitialContext class and add the location to the CLASSPATH setting. See Oracle TimesTen In-Memory Database Java Developer's Guide for more information about the jmsxla.xml configuration file.
Before running a Java program that loads the TimesTen JDBC driver, the shared library path for your system environment variable must be set to include the TimesTen install_dir/lib directory. The name of the variable used for the shared library path depends on the system used
| System | Name of Variable |
|---|---|
| Linux | LD_LIBRARY_PATH |
| Solaris | LD_LIBRARY_PATH |
| AIX | LIBPATH |
| Windows | PATH |
The TimesTen JDBC driver uses native threads. Green threads are not supported.
On some UNIX platforms, to use the native threads package, you must set the THREADS_FLAG environment variable to native. How you set the flag depends on your shell.
In csh, the syntax is:
setenv THREADS_FLAG native
In sh, the syntax is:
THREADS_FLAG=native export THREADS_FLAG
During installation, you have the option of installing TimesTen Quick Start, which includes a variety of tutorials, demo applications, and other resources. If you choose to install Quick Start, it is installed by default under the directory install_dir/quickstart. On UNIX you have the option of specifying an alternative location. Regardless of where you install Quick Start, the home page for further information is install_dir/quickstart.html.
Quick Start provides tutorials, demos, and sample code for administration, access control, application development, replication, and caching, including the following areas. The demo databases are first installed when you install the Quick Start.
Configuration and setup:
Creating, loading, and unloading a TimesTen database
Setting up user accounts and privileges
Using TimesTen utilities and built-in procedures for system operations
Setting up In-Memory Database Cache to cache an Oracle database
Setting up replication using active standby pairs and Oracle Clusterware
Configuring a Java EE or J2EE application server to work with TimesTen
Using Oracle SQL Developer with TimesTen
Using Oracle Enterprise Manager with TimesTen
Application development:
C applications using ODBC and XLA
C applications using Oracle Call Interface (OCI) or the Pro*C/C++ Precompiler
C++ applications using TimesTen TTClasses and XLA
Java applications using JDBC and JTA
PL/SQL applications
Performance and best practices:
Response time demo
Programming tips
Database schema setup tips
Hardware configuration tips
Operating system configuration tips
Through the Quick Start home page, you can find information to set up and run the demos.
Demo schema and setup: The build_sampledb script creates a sample database and demo schema. You must run this before you start using the demos.
Demo environment and setup: The ttquickstartenv script, a superset of the ttenv script generally used for TimesTen setup, sets up the demo environment. You must run this each time you enter a session where you want to compile and run any of the demos.
Demos and setup: Quick Start demos are in subdirectories under the quickstart/sample_code directory. For instructions on compiling and running the demos, see the README files in the subdirectories. Also see "Getting Started" and the various API links under "Sample Programs" on the Quick Start home page.
Online copies of TimesTen documentation are installed along with the TimesTen product unless you choose not to install the documentation. Documentation is provided in HTML and PDF format. The HTML can be viewed in your browser. The PDFs can be viewed with the Adobe Acrobat Reader. If you do not currently have the Adobe Acrobat Reader installed, it is available from the Adobe Systems web page, http://www.adobe.com.
Online documentation is installed in the install_dir/doc directory.
Note:
The online documentation represents the most current release of the documentation.To avoid problems during installation, ensure you have met all prerequisites. Using information in the installation guide and the release notes, check that:
You have installed all required operating system patches.You are running a supported version of the operating system.
You have made all required kernel configuration changes.
You have sufficient disk space.
On UNIX, you are a member of the TimesTen administrator's group. See "TimesTen instance administrators and TimesTen users groups".
On Windows, you are installing as user Administrator who is a member of the local Administrators group.
You can find TimesTen licensing information at: http://www.oracle.com/technetwork/database/timesten/documentation/licensing-info-1478940.pdf
This document contains information on licensing:
Oracle TimesTen In-MemoryOracle In-Memory Database Cache
In-Memory Database Cache for Oracle Applications
and
Note:
Go to the following location for Exalytics documentation:http://www.oracle.com/technetwork/documentation/exalytics-doc-1645656.html
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