[jira] [Updated] (HBASE-4797) [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

["stack (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4797?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

stack updated HBASE-4797:
-------------------------

    Priority: Critical  (was: Major)
        Tags: noob
      Labels: noob  (was: )
    
> [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
> --------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4797
>                 URL: https://issues.apache.org/jira/browse/HBASE-4797
>             Project: HBase
>          Issue Type: Bug
>          Components: performance
>            Reporter: stack
>            Priority: Critical
>              Labels: noob
>
> 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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