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https://issues.apache.org/jira/browse/HBASE-5782?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13255974#comment-13255974
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Lars Hofhansl commented on HBASE-5782:
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@Stack: I ran it too. It works fine. The "interesting" thing I find that it is
faster *with* the patch! And that scares me.
I ran with 100 threads, 10000 iterations. With the patch it took 29s, without
it took 43s. This is on a 6 core machine with hyper threading.
Now, the HLogPerformanceEvaluation does not work with -nosync and -verify,
right? (presumably because no final sync is issued).
Wouldn't mind to get some other numbers from you as well if you had some time.
> 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-lars-v2.txt, 5782-sketch.txt, 5782.txt,
> 5782.unfinished-stack.txt, HBASE-5782.patch, hbase-5782.txt
>
>
> 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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