How to automate the Offline compaction process in AEM 6.2

Statement  : Automate the offline compaction process.

Solution :

• For Offline compaction is still applicable for AEM 6.2 but AEM 6.3 is not required beacuse it spports online compaction.
• Below is the steps involved in the automation and script which is used automates entire process.

Steps involved in the Offline compaction Automation :

1. Shutdown AEM Server
2. Use Matching Oak jar version to find Old Checkpoints
3. Use Matching Oak jar version to Remove Unreferenced Checkpoints
4. Use Matching Oak jar version to Compact Oak
5. Restart AEM

SCRIPT:

#!/bin/bash

todayDate="$(date +'%d-%m-%Y')"

logfile="compact-$ todayDate.log"

installfolder="/data/aem"

aemfolder="$installfolder/crx-quickstart"

oakrun="$installfolder/help/oak-run-1.6.1.jar"

## Shutdown AEM

printf "Shutting down AEM.\n"

$aemfolder/bin/stop

todayDate ="$(date)"

echo "AEM Shutdown at: $ todayDate " >> $installfolder/help/logs/$logfile

## Find old checkpoints

printf "Finding old checkpoints.\n"

java -Dtar.memoryMapped=true -Xms8g -Xmx8g -jar $oakrun checkpoints $aemfolder/repository/segmentstore >> $installfolder/help/logs/$logfile

## Delete unreferenced checkpoints

printf "Deleting unreferenced checkpoints.\n"

java -Dtar.memoryMapped=true -Xms8g -Xmx8g -jar $oakrun checkpoints $aemfolder/repository/segmentstore rm-unreferenced >> $installfolder/help/logs/$logfile

## Run compaction

printf "Running compaction. This may take a while.\n"

java -Dtar.memoryMapped=true -Xms8g -Xmx8g -jar $oakrun compact $aemfolder/repository/segmentstore >> $installfolder/help/logs/$logfile

## Report Completed

printf "Compaction complete. Please check the log at:\n"

printf "$installfolder/help/logs/$logfile\n"

## Start AEM back up

todayDate ="$(date)"

printf "Starting up AEM.\n"

$aemfolder/bin/start

echo "AEM Startup at: $ todayDate " >> $installfolder/help/logs/$logfile

Reference :

https://jackrabbit.apache.org/oak/docs/command_line.html