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Qiang Tian commented on HBASE-11368: ------------------------------------ the attachments: {{key_stacktrace_hbase10882.TXT}} : the problem stacktrace {{hbase-11368-0.98.5.patch}} : the fix {{performance_improvement_verification_98.5.patch}}: the testcase to verify performance improvement > Multi-column family BulkLoad fails if compactions go on too long > ---------------------------------------------------------------- > > Key: HBASE-11368 > URL: https://issues.apache.org/jira/browse/HBASE-11368 > Project: HBase > Issue Type: Bug > Reporter: stack > Assignee: Qiang Tian > Attachments: hbase-11368-0.98.5.patch, key_stacktrace_hbase10882.TXT, > performance_improvement_verification_98.5.patch > > > Compactions take a read lock. If a multi-column family region, before bulk > loading, we want to take a write lock on the region. If the compaction takes > too long, the bulk load fails. > Various recipes include: > + Making smaller regions (lame) > + [~victorunique] suggests major compacting just before bulk loading over in > HBASE-10882 as a work around. > Does the compaction need a read lock for that long? Does the bulk load need > a full write lock when multiple column families? Can we fail more gracefully > at least? -- This message was sent by Atlassian JIRA (v6.3.4#6332)