The commitlog in Cassandra is taking more space.
Can we clear it using nodetool flush?
Cassandra Commitlog taking more space on disk
88 Views Asked by Shashikumar KL At
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You can certainly attempt to force memtables to be flushed to disk but I doubt it will work.
When certain thresholds are reached, Cassandra does the flushing automatically but I suspect there's something wrong on the node so the commitlog just keeps getting bigger.
One common cause for flushes to not work is when the file permissions are wrong. For example, if you accidentally start Cassandra as the
rootuser, new files are owned byrootso the default Cassandra user no longer has the ability to do operations as memtable flushes and compaction.Check the permissions and ownership on both (a) the files in the
commitlog/directory, AND (b) the parent directories to make sure that the Cassandra user has access. Cheers!