Warnings if RS times are out of sync
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Key: HBASE-3558
URL: https://issues.apache.org/jira/browse/HBASE-3558
Project: HBase
Issue Type: Improvement
Components: regionserver
Affects Versions: 0.89.20100924
Reporter: Sean Sechrist
Priority: Minor
Last night we ran into a problem with the times on RSs being out of sync by 1
minute. The times were being reset by ~70s often because we were getting
different responses from pool.ntpd.org.
This caused lost ZK sessions and problems writing to datanodes, so all the RSs
kept shutting down.
I think it would be useful to have HBaseFsck check to see if the times on the
region servers are out of sync. Or maybe put a warning on the master web ui or
something.
This seems related to HBASE-3168, but applies when region servers become out of
sync once they already joined the cluster (due to NTP issues or something else).
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