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https://issues.apache.org/jira/browse/HBASE-9775?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jeffrey Zhong updated HBASE-9775:
---------------------------------
Attachment: hbase-9775.patch
I think I found one bug in the AsyncProcess hurts performance. Below is the
code snippet:
{code}
incTaskCounters(multiAction.getRegions(), loc.getServerName());
Runnable runnable = Trace.wrap("AsyncProcess.sendMultiAction", new
Runnable() {
....
receiveMultiAction(initialActions, multiAction, loc, res,
numAttempt, errorsByServer);
} finally {
decTaskCounters(multiAction.getRegions(), loc.getServerName());
}
{code}
Because receiveMultiAction use recursive way to resubmit failure edits.
Therefore, we double bump up the TaskCounter when error happens and the overlap
timing is a retry internal which is quite long time for client operations.
I attached a patch for your reference.
> Client write path perf issues
> -----------------------------
>
> Key: HBASE-9775
> URL: https://issues.apache.org/jira/browse/HBASE-9775
> Project: HBase
> Issue Type: Bug
> Components: Client
> Affects Versions: 0.96.0
> Reporter: Elliott Clark
> Priority: Critical
> Attachments: Charts Search Cloudera Manager - ITBLL.png, Charts
> Search Cloudera Manager.png, hbase-9775.patch, job_run.log, short_ycsb.png,
> ycsb_insert_94_vs_96.png
>
>
> Testing on larger clusters has not had the desired throughput increases.
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