IBM Operations Analytics - Log Analysis, Version 1.3.0

Removing Apache Solr instances

Before you remove an installation of IBM® Operations Analytics - Log Analysis, you must remove Apache Solr.

About this task

Warning: Do not remove Apache Solr if IBM Operations Analytics - Log Analysis is still being used. IBM Operations Analytics - Log Analysis does not function properly when any instances of Apache Solr are removed. For this reason, only remove Apache Solr when you are about to uninstall IBM Operations Analytics - Log Analysis.

If you installed Apache Solr locally and remotely, remove the local instance first, then remove the remotely installed instances.

This process uses Installation Manager to remove Apache Solr instances. You can also do so silently. To run the silent removal, run following imcl -c command, enter 3 to modify the installation, and remove the instance.

Procedure

Change the directory to <HOME>/IBM/LogAnalysis/solr_install_tool. For example:
```
cd <HOME>/IBM/LogAnalysis/solr_install_tool
```
To run the remote_deploy.sh uninstall script, enter the following command:
```
./remote_deploy.sh -uninstall
```
The script prompts you for the following information:
Remote Hostname in FQDN format

Enter the Fully Qualified Domain Name (FQDN) of the remote host.

Username

Enter the user name.

Password

Enter the password if password less SSH authentication is disabled. If password less SSH is enabled between the IBM Operations Analytics - Log Analysis server and the remote host, the script reads the values that are specified in the ssh_config.properties file in the <UNITY_HOME>/utilities/config directory. For more information, see the Setting up Secure Shell to use key-based authentication topic in the IBM Operations Analytics - Log Analysis information center.

SSH Port

Enter the remote machine port that is used for SSH. To use the default value of 22, press enter.

Top-level Installation Directory

To use the default value, which is <HOME>/IBM/LogAnalysis, press enter. Alternatively, you can enter the path to the directory where Apache Solr is installed.
To start the removal, press enter. You can view the logs in the <HOME>/IBM/LogAnalysis/solr_install_tool/logs directory.

Results

When all the remote nodes are removed, you can safely uninstall IBM Operations Analytics - Log Analysis.

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