Via JMX you will find a remoteAPI that you can use to perform operations against the Java process.
Examples of use:
A page lock has "jammed" and requires manual unlocking. To unlock it, click on the SiteVision folder. Then Select NodeLock and finally Locks. You will now see the ID number of the pages with locks. Copy an ID number and paste it into unlockByForceByNodeId. Click on Execute.
In the org.apache.cassandra. folders, you can get more information if you have cluster problems.
The page published: 2019-03-25