mlowicki created CASSANDRA-9702:
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Summary: Repair running really slow
Key: CASSANDRA-9702
URL: https://issues.apache.org/jira/browse/CASSANDRA-9702
Project: Cassandra
Issue Type: Bug
Environment: C* 2.1.7, Debian Wheezy
Reporter: mlowicki
Attachments: db1.system.log
We're using 2.1.x since the very beginning and we always had problem with
failing or slow repair. In one data center we aren't able to finish repair for
many weeks (partially because CASSANDRA-9681 as we needed to reboot nodes
periodically).
I've launched it today morning (12 hours now) and monitor using
https://github.com/spotify/cassandra-opstools/blob/master/bin/spcassandra-repairstats.
For the first hour it progressed to 9.43% but then it took ~10 hours to reach
9.44%. I see very rarely logs related to repair (each 15-20 minutes but
sometimes nothing new for 1 hour).
Repair launched with:
{code}
nodetool repair --partitioner-range --parallel --in-local-dc {keyspace}
{code}
Attached log file from today.
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