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https://issues.apache.org/jira/browse/HBASE-4217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13089569#comment-13089569
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Ted Yu commented on HBASE-4217:
-------------------------------
{code}
+ public void
testShouldNotThrowExceptionIfTheRegionNamePassedToCloseIsNotAValidRegion()^M
{code}
The method name is informative but too long. How about
testShouldNotThrowIfTheRegionNamePassedToCloseIsNotAValidRegion ?
Please add javadoc for the new test.
{code}
+^M
+public class TestHBACloseRegion {^M
{code}
> HRS.closeRegion should be able to close regions with only the encoded name
> --------------------------------------------------------------------------
>
> Key: HBASE-4217
> URL: https://issues.apache.org/jira/browse/HBASE-4217
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 0.90.4
> Reporter: Jean-Daniel Cryans
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.92.0
>
> Attachments: HBASE-4217.patch
>
>
> We had some sort of an outage this morning due to a few racks losing power,
> and some regions were left in the following state:
> ERROR: Region UNKNOWN_REGION on sv4r17s9:60020,
> key=e32bbe1f48c9b3633c557dc0291b90a3, not on HDFS or in META but deployed on
> sv4r17s9:60020
> That region was deleted by the master but the region server never got the
> memo. Right now there's no way to force close it because HRS.closeRegion
> requires an HRI and the only way to create one is to get it from .META. which
> in our case doesn't contain a row for that region. Basically we have to wait
> until that server is dead to get rid of the region and make hbck happy.
> The required change is to have closeRegion accept an encoded name in both HBA
> (when the RS address is provided) and HRS since it's able to find it anyways
> from it's list of live regions.
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