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https://issues.apache.org/jira/browse/HBASE-11109?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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stack updated HBASE-11109:
--------------------------
Status: Patch Available (was: Open)
> flush region sequence id may not be larger than all edits flushed
> -----------------------------------------------------------------
>
> Key: HBASE-11109
> URL: https://issues.apache.org/jira/browse/HBASE-11109
> Project: HBase
> Issue Type: Sub-task
> Components: wal
> Affects Versions: 0.99.0
> Reporter: stack
> Assignee: stack
> Priority: Critical
> Fix For: 0.99.0
>
> Attachments: 11109.txt, 11109v2.txt
>
>
> This was found by [~jeffreyz] See parent issue. We have this issue since we
> put the ring buffer/disrupter into the WAL (HBASE-10156).
> An edits region sequence id is set only after the edit has traversed the ring
> buffer. Flushing, we just up whatever the current region sequence id is.
> Crossing the ring buffer may take some time and is done by background
> threads. The flusher may be taking the region sequence id though edits have
> not yet made it across the ringbuffer: i.e. edits that are actually scoped by
> the flush may have region sequence ids in excess of that of the flush
> sequence id reported.
> The consequences are not exactly clear. Would rather not have to find out so
> lets fix this here.
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