5.1 Run Uninstallation

Uninstall according to the following procedure:

Note that "x SPz" in sample windows indicates the version and level of products to uninstall and "<x>" in paths indicates the product version.

Note

All files and directories in the installation directory are deleted during uninstallation. If user files have been placed in the installation directory, back them up before uninstallation if necessary.
To reinstall Fujitsu Enterprise Postgres after it was uninstalled, and reuse an instance that was already created so that it can be managed from WebAdmin, back up the directory shown below in which the WebAdmin instance management information had been defined before uninstalling Fujitsu Enterprise Postgres, and then restore the backed up directory to its original location once Fujitsu Enterprise Postgres has been reinstalled.
Follow the procedure below to perform the backup.
1. Stop the WebAdmin server. Refer to "B.1.4 Stopping the Web Server Feature of WebAdmin" for details.
2. Back up the following directory:
```
webAdminInstallDir/data/fepwa
```
In case of secure connection, all the certificates placed in "keystore" directory will be removed when uninstalling WebAdmin. Back up these certificates and its configuration file in advance if required.
```
webAdminInstallDir/tomcat/keystore
webAdminInstallDir/tomcat/conf/server.xml
```
They are backed up because the keystore contains certificates, and server.xml contains information for the keystorePass, keyAlias, and truststorePass attributes.

1. Delete the operation information

If the Fujitsu Enterprise Postgres operation information has been registered in the operating system or another middleware product, for example, then it must be deleted. Cases in which deletion is required are as follows:

If you have set automatic start and stop of the instance, execute the following commands to disable the script and cancel registration.

systemctl disable nameOfUnitFileThatPerformsAutomaticStartAndStop
rm /usr/lib/systemd/system/nameOfUnitFileThatPerformsAutomaticStartAndStop

Example

# systemctl disable fsepsvoi_inst1.service
# rm /usr/lib/systemd/system/fsepsvoi_inst1.service

2. Stop applications and programs

Before starting the uninstallation, stop the following:

Applications that use the product
Connection Manager
Instance
Using WebAdmin
In the [Instances] tab, select the instance to stop and click .
Using server commands
Execute the pg_ctl command in stop mode.
```
$ /opt/fsepv<x>server64/bin/pg_ctl stop -D /database/inst1
```
Web server feature of WebAdmin
Execute the WebAdminStop command to stop the Web server feature of WebAdmin.
Example
If WebAdmin is installed in /opt/fsepv<x>webadmin:
```
# cd /opt/fsepv<x>webadmin/sbin
# ./WebAdminStop
```
Mirroring Controller
Execute the mc_ctl command with the stop mode option specified and stop the Mirroring Controller.
Example
```
$ mc_ctl stop -M /mcdir/inst1
```
pgBadger
Pgpool-II
pgBackRest

3. Remove WebAdmin setup

When uninstall WebAdmin feature, execute the WebAdminSetup command to remove WebAdmin setup.

Example

If WebAdmin is installed in /opt/fsepv<x>webadmin:

# cd /opt/fsepv<x>webadmin/sbin
# ./WebAdminSetup -d

4. Verifying Installation Features

Verify that the feature to be removed is installed by executing the following command.

Where <x> is a number indicating the version.

Feature Name	Package Name
Server	FJSVfsep-SV-<x>
WebAdmin	FJSVfsep-WAD-<x>
Client	FJSVfsep-CL-<x>
Pgpool-II	FJSVfsep-POOL2-<x>
pgBackRest	FJSVfsep-PGBR-<x>

Example

# rpm -qi FJSVfsep-SV-<x>

5. Run the uninstallation

Run the following command.

Example

# rpm -e FJSVfsep-SV-<x>

The installation directory may remain after uninstallation. If it is not required, delete it.