[jira] [Commented] (BOOKKEEPER-509) TestBookKeeperPersistenceManager failed on latest trunk

["Sijie Guo (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/BOOKKEEPER-509?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13532750#comment-13532750 ] 

Sijie Guo commented on BOOKKEEPER-509:
--------------------------------------

BTW: I fixed this bug, I found an interesting thing in speculative op, each time the speculative read op would be scheduled even the first response is already received. I haven't no idea why it happend. I attached the detail log for it. please grep 'Send speculative'. 
                
> TestBookKeeperPersistenceManager failed on latest trunk
> -------------------------------------------------------
>
>                 Key: BOOKKEEPER-509
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-509
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: hedwig-server
>            Reporter: Sijie Guo
>            Assignee: Sijie Guo
>            Priority: Blocker
>             Fix For: 4.2.0
>
>         Attachments: BOOKKEEPER-509.diff, hedwig-server.log
>
>
> latest trunk failed at TestBookKeeperPersistenceManager.
> sees that it caused by uncaught exception:
> {code}
> java.util.NoSuchElementException
>         at java.util.AbstractQueue.remove(AbstractQueue.java:90)
>         at org.apache.bookkeeper.client.PendingReadOp.nextElement(PendingReadOp.java:345)
>         at org.apache.bookkeeper.client.PendingReadOp.nextElement(PendingReadOp.java:53)
>         at org.apache.bookkeeper.client.LedgerRecoveryOp.readComplete(LedgerRecoveryOp.java:100)
>         at org.apache.bookkeeper.client.PendingReadOp.submitCallback(PendingReadOp.java:338)
>         at org.apache.bookkeeper.client.PendingReadOp.readEntryComplete(PendingReadOp.java:327)
>         at org.apache.bookkeeper.proto.PerChannelBookieClient.handleReadResponse(PerChannelBookieClient.java:627)
>         at org.apache.bookkeeper.proto.PerChannelBookieClient$7.safeRun(PerChannelBookieClient.java:529)
>         at org.apache.bookkeeper.util.SafeRunnable.run(SafeRunnable.java:31)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:439)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:680)
> {code}

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