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https://issues.apache.org/jira/browse/HBASE-10935?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tianying Chang updated HBASE-10935:
-----------------------------------
Attachment: HBase-10935.patch
New patch has tow more things:
1. unit test added. I put the test in TestFlushSnapshotFromClient.java instead
of creating a new dedicated file since it really just one call with one
parameter change. Feels no need for extra duplicated code.
2. Changed the interface to use {SKIP_FLUSH => 'true'}
I will add patch for trunk in the last step after the patch for 0.94 is
considered fine.
> support snapshot policy where flush memstore can be skipped to prevent
> production cluster freeze
> ------------------------------------------------------------------------------------------------
>
> Key: HBASE-10935
> URL: https://issues.apache.org/jira/browse/HBASE-10935
> Project: HBase
> Issue Type: New Feature
> Components: shell, snapshots
> Affects Versions: 0.94.7, 0.94.18
> Reporter: Tianying Chang
> Assignee: Tianying Chang
> Priority: Minor
> Fix For: 0.94.20
>
> Attachments: HBase-10935.patch, HBase-10935.patch
>
>
> We are using snapshot feature to do HBase disaster recovery. We will do
> snapshot in our production cluster periodically. The current flush snapshot
> policy require all regions of the table to coordinate to prevent write and do
> flush at the same time. Since we use WALPlayer to complete the data that is
> not in the snapshot HFile, we don't need the snapshot to do coordinated
> flush. The snapshot just recored all the HFile that are already there.
> I added the parameter in the HBase shell. So people can choose to use the
> NoFlush snapshot when they need, like below. Otherwise, the default flush
> snpahot support is not impacted.
> >snaphot 'TestTable', 'TestSnapshot', 'skipFlush'
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