Tianying Chang created HBASE-10935:
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Summary: 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: 0.94.18, 0.94.7
Reporter: Tianying Chang
Assignee: Tianying Chang
Priority: Minor
Fix For: 0.94.19
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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