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https://issues.apache.org/jira/browse/ROCKETMQ-91?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15882212#comment-15882212
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ASF GitHub Bot commented on ROCKETMQ-91:
----------------------------------------
Github user zhouxinyu commented on a diff in the pull request:
https://github.com/apache/incubator-rocketmq/pull/57#discussion_r102897426
--- Diff: store/src/main/java/org/apache/rocketmq/store/CommitLog.java ---
@@ -567,6 +577,11 @@ public PutMessageResult putMessage(final
MessageExtBrokerInner msg) {
MappedFile unlockMappedFile = null;
MappedFile mappedFile = this.mappedFileQueue.getLastMappedFile();
+ //maybe need to wrap the exception
--- End diff --
Agree with @shroman .
> Reduce lock granularity for putMessage
> --------------------------------------
>
> Key: ROCKETMQ-91
> URL: https://issues.apache.org/jira/browse/ROCKETMQ-91
> Project: Apache RocketMQ
> Issue Type: Improvement
> Affects Versions: 4.1.0-incubating
> Reporter: dongeforever
> Assignee: dongeforever
> Fix For: 4.1.0-incubating
>
>
> CommitLog putMessage has a lock as:
> lockForPutMessage()
> ....
> releasePutMessageLock()
> The logic inside the lock includes two main operations:
> 1 encode the message
> 2 write to the PageCache.
> However, we can take the first operation(encode message) out from the lock to
> achieve better performance.
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