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https://issues.apache.org/jira/browse/HBASE-13576?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14527651#comment-14527651
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Stephen Yuan Jiang commented on HBASE-13576:
--------------------------------------------
The region check run parallel - the first failed region might not have any
significant indication. We have already printed out all the exceptions of
failed regions in the log, therefore, no context lose:
+ try {
+ checkRegionConsistency(key, hbi);
+ } catch (Exception e) {
+ // If the region is non-META region, skip this region and send
warning/error message; if
+ // the region is META region, we should not continue.
+ LOG.warn("Unable to complete check or repair the region '" +
hbi.getRegionNameAsString()
+ + "'.", e);
> HBCK enhancement: Failure in checking one region should not fail the entire
> HBCK operation.
> -------------------------------------------------------------------------------------------
>
> Key: HBASE-13576
> URL: https://issues.apache.org/jira/browse/HBASE-13576
> Project: HBase
> Issue Type: Bug
> Components: hbck
> Affects Versions: 2.0.0, 1.1.0, 1.2.0
> Reporter: Stephen Yuan Jiang
> Assignee: Stephen Yuan Jiang
> Attachments: HBASE-13576.v1-master.patch,
> HBASE-13576.v2-master.patch, HBASE-13576.v3-master.patch
>
>
> HBaseFsck#checkRegionConsistency() checks region consistency and repair the
> corruption if requested. However, this function expects some exceptions.
> For example, in one aspect of region repair, it calls
> HBaseFsckRepair#waitUntilAssigned(), if a region is in transition for over
> 120 seconds (default value of "hbase.hbck.assign.timeout" configuration),
> IOException would throw.
> The problem is that one exception in checkRegionConsistency() would kill
> entire hbck operation, because the exception would propagate up.
> The proposal is that if the region is not META region ( or a system table
> region if we prefer), we can skip the region if
> HBaseFsck#checkRegionConsistency() fails. We could print out skip regions in
> summary section so that users know to either re-run or investigate potential
> issue for that region.
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