ramkrishna.s.vasudevan created HBASE-6317:
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Summary: Master clean start up and Partially enabled tables make
region assignment inconsistent.
Key: HBASE-6317
URL: https://issues.apache.org/jira/browse/HBASE-6317
Project: HBase
Issue Type: Bug
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Fix For: 0.92.2, 0.96.0, 0.94.1
If we have a table in partially enabled state (ENABLING) then on HMaster
restart we treat it as a clean cluster start up and do a bulk assign.
Currently in 0.94 bulk assign will not handle ALREADY_OPENED scenarios and it
leads to region assignment problems. Analysing more on this we found that we
have better way to handle these scenarios.
{code}
if (false == checkIfRegionBelongsToDisabled(regionInfo)
&& false == checkIfRegionsBelongsToEnabling(regionInfo)) {
synchronized (this.regions) {
regions.put(regionInfo, regionLocation);
addToServers(regionLocation, regionInfo);
}
{code}
We dont add to regions map so that enable table handler can handle it. But as
nothing is added to regions map we think it as a clean cluster start up.
Will come up with a patch tomorrow.
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