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Date: Wed, 25 Nov 2015 05:54:11 +0000 (UTC)
From: "Heng Chen (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12908115.1445920888000.187580.1448430851114@Atlassian.JIRA>
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 <JIRA.12908115.1445920888693@arcas>
Subject: [jira] [Updated] (HBASE-14703) not collect stats when call
 HTable.mutateRow
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     [ https://issues.apache.org/jira/browse/HBASE-14703?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Heng Chen updated HBASE-14703:
------------------------------
    Attachment: HBASE-14703_v7.patch

> not collect stats when call HTable.mutateRow 
> ---------------------------------------------
>
>                 Key: HBASE-14703
>                 URL: https://issues.apache.org/jira/browse/HBASE-14703
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Heng Chen
>            Assignee: Heng Chen
>             Fix For: 2.0.0
>
>         Attachments: HBASE-14702_v5.2_addendum-addendum.patch, HBASE-14703-5.2-addendum.patch, HBASE-14703-async.patch, HBASE-14703-start.patch, HBASE-14703-v4.1.patch, HBASE-14703-v4.patch, HBASE-14703-v6_with-check-and-mutate.patch, HBASE-14703.patch, HBASE-14703_v1.patch, HBASE-14703_v2.patch, HBASE-14703_v3.patch, HBASE-14703_v5.1.patch, HBASE-14703_v5.2.patch, HBASE-14703_v5.patch, HBASE-14703_v6-addendum.patch, HBASE-14703_v6.patch, HBASE-14703_v7.patch
>
>
> In {{AsyncProcess.SingleServerRequestRunnable}}, it seems we update serverStatistics twice.
> The first one is that we wrapper {{RetryingCallable}}  by {{StatsTrackingRpcRetryingCaller}}, and do serverStatistics update when we call {{callWithRetries}} and {{callWithoutRetries}}. Relates code like below:
> {code}
>   @Override
>   public T callWithRetries(RetryingCallable<T> callable, int callTimeout)
>       throws IOException, RuntimeException {
>     T result = delegate.callWithRetries(callable, callTimeout);
>     return updateStatsAndUnwrap(result, callable);
>   }
>   @Override
>   public T callWithoutRetries(RetryingCallable<T> callable, int callTimeout)
>       throws IOException, RuntimeException {
>     T result = delegate.callWithRetries(callable, callTimeout);
>     return updateStatsAndUnwrap(result, callable);
>   }
> {code}
> The secondary one is after we get response, in {{receiveMultiAction}}, we do update again. 
> {code}
> // update the stats about the region, if its a user table. We don't want to slow down
> // updates to meta tables, especially from internal updates (master, etc).
> if (AsyncProcess.this.connection.getStatisticsTracker() != null) {
>   result = ResultStatsUtil.updateStats(result,
>   AsyncProcess.this.connection.getStatisticsTracker(), server, regionName);
> }
> {code}
> It seems that {{StatsTrackingRpcRetryingCaller}} is NOT necessary,  remove it?



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