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https://issues.apache.org/jira/browse/HBASE-5782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255191#comment-13255191
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Lars Hofhansl commented on HBASE-5782:
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Sketched patch looks good, making sure that we do sync' a batch of write before
the previous batch is done.
I was thinking about something similar, but still allowing multiple threads to
write, just that a thread cannot start writing before the previous batch is
confirmed sync'ed. I guess we actually wouldn't get more parallelism out that
than with your approach.
> Edits can be appended out of seqid order since HBASE-4487
> ---------------------------------------------------------
>
> Key: HBASE-5782
> URL: https://issues.apache.org/jira/browse/HBASE-5782
> Project: HBase
> Issue Type: Bug
> Components: wal
> Affects Versions: 0.94.0
> Reporter: Gopinathan A
> Assignee: ramkrishna.s.vasudevan
> Priority: Blocker
> Fix For: 0.94.0
>
> Attachments: 5782-sketch.txt, 5782.txt, HBASE-5782.patch
>
>
> Create a table with 1000 splits, after the region assignemnt, kill the
> regionserver wich contains META table.
> Here few regions are missing after the log splitting and region assigment.
> HBCK report shows multiple region holes are got created.
> Same scenario was verified mulitple times in 0.92.1, no issues.
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