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https://issues.apache.org/jira/browse/HBASE-13709?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Enis Soztutar updated HBASE-13709:
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Attachment: hbase-13709_v1.patch
Attaching a patch which implements the scheme described in HBASE-11536. We send
the masters wall clock with the open region RPC, and we use the
max(masterSystemTime, localTime) from RS when updating the meta location.
It adds new methods to RegionServerServices, but I think it should be fine for
patch releases for 1.0+.
> Updates to meta table server columns may be eclipsed
> ----------------------------------------------------
>
> Key: HBASE-13709
> URL: https://issues.apache.org/jira/browse/HBASE-13709
> Project: HBase
> Issue Type: Bug
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 2.0.0, 1.0.2, 1.2.0, 1.1.1
>
> Attachments: hbase-13709_v1.patch
>
>
> HBASE-11536 fixes a case where on a very rare occasion, the meta updates may
> be processed out of order. The fix is to use the RS's timestamp for the
> server column in meta update, but that actually opens up a vulnerability for
> clock skew (see the discussions in the jira).
> For the region replicas case, we can reproduce a problem where the server
> name field is eclipsed by the masters earlier update because the RS is
> lagging behind. However, this is not specific to replicas, but occurs more
> frequently with it.
> One option that was discussed was to send the master's ts with open region
> RPC and use it.
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