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From "Mikhail Antonov (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-16743) TestSimpleRpcScheduler#testCoDelScheduling is broke
Date Thu, 27 Oct 2016 09:37:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-16743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15611346#comment-15611346
] 

Mikhail Antonov commented on HBASE-16743:
-----------------------------------------

that escaped my attention when I looked for thing marked for 1.3. This test is definitely
flaky now on 1.3. will look tomorrow.

> TestSimpleRpcScheduler#testCoDelScheduling is broke
> ---------------------------------------------------
>
>                 Key: HBASE-16743
>                 URL: https://issues.apache.org/jira/browse/HBASE-16743
>             Project: HBase
>          Issue Type: Bug
>          Components: rpc
>    Affects Versions: 1.3.0
>            Reporter: stack
>             Fix For: 1.3.0
>
>
> The testCoDelScheduling test is broke. Here are some notes on it. I have disabled it
in the HBASE-15638 shading patch.
> {code}
> I don't get this test. When I time this test, the minDelay is > 2 * codel delay from
the get go. So we are always overloaded. The test below would seem to complete the queuing
of all the CallRunners inside the codel check interval. I don't think we are skipping codel
checking. Second, I think this test has been  broken since HBASE-16089 Add on FastPath for
CoDel went in. The thread name we were looking for was the name BEFORE we updated: i.e. "RpcServer.CodelBQ.default.handler".
But same patch changed the name of the codel  fastpath thread to: new FastPathBalancedQueueRpcExecutor("CodelFPBQ.default",
handlerCount, numCallQueues...
> Codel is hard to test. This test is going to be flakey given it all timer-based. Disabling
for now till chat
> {code}
> FYI [~mantonov]



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