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Posted to issues@hbase.apache.org by "Philippe Laflamme (JIRA)" <ji...@apache.org> on 2018/11/01 00:27:00 UTC
[jira] [Commented] (HBASE-21415) Admin#snapshot method
documentation is misleading.
[ https://issues.apache.org/jira/browse/HBASE-21415?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16670929#comment-16670929 ]
Philippe Laflamme commented on HBASE-21415:
-------------------------------------------
[~xucang] I've updated the patch with a comment about concurrency. Let me know if it makes sense.
> Admin#snapshot method documentation is misleading.
> --------------------------------------------------
>
> Key: HBASE-21415
> URL: https://issues.apache.org/jira/browse/HBASE-21415
> Project: HBase
> Issue Type: Improvement
> Components: documentation
> Reporter: Philippe Laflamme
> Assignee: Philippe Laflamme
> Priority: Trivial
> Attachments: HBASE-21415.patch, HBASE-21415.patch
>
>
> The documentation for the {{Admin#snapshot}} function is misleading in regards to snapshot concurrency.
> It currently states the following:
> {quote}Only a single snapshot should be taken at a time for an instance of HBase, or results may be undefined (you can tell multiple HBase clusters to snapshot at the same time, but only one at a time for a single cluster).
> {quote}
> This seems to indicate that it's dangerous to run snapshots concurrently when in fact the HBase master will simply run them sequentially (as per this Slack thread [https://apache-hbase.slack.com/archives/C13K8NVAM/p1540994948005900)]
> The suggested fix is to simply remove this entire sentence.
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