[availability] Give recovered.edits files better names, ones that include first
and last sequence id so we can skip files with edits we know older than current
region has
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Key: HBASE-4797
URL: https://issues.apache.org/jira/browse/HBASE-4797
Project: HBase
Issue Type: Bug
Components: performance
Reporter: stack
Testing 0.92, I crashed all servers out. Another bug makes it so WALs are not
getting cleaned so I had 7000 regions to replay. The distributed split code
did a nice job and cluster came back but interesting is that some hot regions
ended up having loads of recovered.edits files -- tens if not hundreds -- to
replay against the region (can we bulk load recovered.edits instead of
replaying them?). Each recovered.edits file is taking about a second to
process (though only about 30 odd edits per file it seems). The region is
unavailable during this time.
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