Run the following commands before the activity from one of the cassandra nodes
nodetool clientstats
nodetool compactionstats
nodetool gcstats
nodetool netstats
nodetool tpstats
nodetool tablestats |
Stop the traffic from outside. Stop nginx-public |
 |
Stop the samza jobs
ntpprod.course-batch-updater
ntpprod.qrcode-image-generator
ntpprod.lms.user-account-merger
ntpprod.collection-migration
ntpprod.lms.sso-account-updater
ntpprod.merge-user-courses
ntpprod.lms.indexer
ntpprod.publish-pipeline
ntpprod.course-certificate-generator
ntpprod.post-publish-processor |
Run nodetool drain in every cassandra node |
Stop cassandra process in every cassandra node |
Take a disk snapshot of each cassandra VM |
Stop the cassandra VMs and change the instnace type d8sV3 |
Start the cassandra VMs |
Run the following commands from one of the cassandra nodes
nodetool clientstats
nodetool compactionstats
nodetool gcstats
nodetool netstats
nodetool tpstats
nodetool tablestats |
Run sample cassandra queries |
Start the samza jobs
ntpprod.course-batch-updater
ntpprod.qrcode-image-generator
ntpprod.lms.user-account-merger
ntpprod.collection-migration
ntpprod.lms.sso-account-updater
ntpprod.merge-user-courses
ntpprod.lms.indexer
ntpprod.publish-pipeline
ntpprod.course-certificate-generator
ntpprod.post-publish-processor |
Start nginx-public to allow traffic |