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https://issues.apache.org/jira/browse/ROCKETMQ-272?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16144692#comment-16144692
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ASF GitHub Bot commented on ROCKETMQ-272:
-----------------------------------------

Github user evthoriz commented on the issue:

    https://github.com/apache/incubator-rocketmq/pull/153
  
    @vongosling @zhouxinyu @shroman @lizhanhui Anybody willing to review this 
pr?


> The config `syncFlushTimeout` doesn't work for SYNC_MASTER
> ----------------------------------------------------------
>
>                 Key: ROCKETMQ-272
>                 URL: https://issues.apache.org/jira/browse/ROCKETMQ-272
>             Project: Apache RocketMQ
>          Issue Type: Bug
>          Components: rocketmq-broker
>    Affects Versions: 4.1.0-incubating
>            Reporter: Yu Kaiyuan
>            Assignee: yukon
>
> It's quite frequent to get result as `sendStatus=FLUSH_SLAVE_TIMEOUT` when 
> sending big messages(>500k) in SYNC_MASTER/SLAVE scenario.
> The timeout value used by the sync process currently as I found, is the 
> config `syncFlushTimeout`. And its default value is 5000 milliseconds.
> But it shows that producer get the result as `FLUSH_SLAVE_TIMEOUT` less than 
> 1 second. 
> So why does the config not work as expected?
> Relevant code:
> {code:java}
> // CommitLog.java
> public void handleHA(AppendMessageResult result, PutMessageResult 
> putMessageResult, MessageExt messageExt) {
>     if (BrokerRole.SYNC_MASTER == 
> this.defaultMessageStore.getMessageStoreConfig().getBrokerRole()) {
>         HAService service = this.defaultMessageStore.getHaService();
>         if (messageExt.isWaitStoreMsgOK()) {
>             // Determine whether to wait
>             if (service.isSlaveOK(result.getWroteOffset() + 
> result.getWroteBytes())) {
>                 GroupCommitRequest  request = new 
> GroupCommitRequest(result.getWroteOffset() + result.getWroteBytes());
>                 service.putRequest(request);
>                 service.getWaitNotifyObject().wakeupAll();
>                 boolean flushOK =
>                     
> request.waitForFlush(this.defaultMessageStore.getMessageStoreConfig().getSyncFlushTimeout());
>                 if (!flushOK) {
>                     log.error("do sync transfer other node, wait return, but 
> failed, topic: " + messageExt.getTopic() + " tags: "
>                         + messageExt.getTags() + " client address: " + 
> messageExt.getBornHostNameString());
>                     
> putMessageResult.setPutMessageStatus(PutMessageStatus.FLUSH_SLAVE_TIMEOUT);
>                 }
>             }
>             // Slave problem
>             else {
>                 // Tell the producer, slave not available
>                 
> putMessageResult.setPutMessageStatus(PutMessageStatus.SLAVE_NOT_AVAILABLE);
>             }
>         }
>     }
> }
> {code}



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