zhuobin zheng created HBASE-26579:
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Summary: Set storage policy of recovered edits when wal storage
type is configured
Key: HBASE-26579
URL: https://issues.apache.org/jira/browse/HBASE-26579
Project: HBase
Issue Type: Improvement
Components: Recovery
Reporter: zhuobin zheng
In our cluster, we has many SSD and a little HDD. (Most table configured
storage policy ONE_SSD, and all wals is configured ALL_SSD)
when all cluster down, It's difficult to recovery cluster. Because HDD Disk IO
bottleneck (Almost all disk io util is 100%).
I think the most hdfs operation when recovery is split wal to recovered edits
dir, And read it.
And it goes better when i stop hbase and set all recovered.edits to ALL_SSD.
So we can get benifit of recovery time if we set recovered.edits dir to better
storage like WAL.
Now i reuse config item hbase.wal.storage.policy to set recovered.edits
storage type. Because I did not find a scenario where they use different
storage Policy
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