Matteo Bertozzi created HBASE-12030:
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Summary: Wrong compaction report and assert when MOB compaction
switches to minor
Key: HBASE-12030
URL: https://issues.apache.org/jira/browse/HBASE-12030
Project: HBase
Issue Type: Bug
Components: regionserver
Affects Versions: hbase-11339
Reporter: Matteo Bertozzi
Priority: Critical
Fix For: hbase-11339
when zookeeper is down during a major compaction, we switch to a minor.
{code}
try {
zk = MobZookeeper.newInstance(this.conf, compactionName);
} catch (KeeperException e) {
LOG.error("Cannot connect to the zookeeper, ready to perform the minor
compaction instead", e);
// change the major compaction into a minor one
compaction.getRequest().setIsMajor(false);
return super.compact(compaction);
}
{code}
but the "request start" (HRegion.reportCompactionRequestStart) is "major" and
increments the major-compactions counter
while the "request end" (HRegion.reportCompactionRequestEnd) is "minor" and
decrements the minor-compactions counter
triggering the assert newValue >= 0, since we are decrementing the wrong counter
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