Github user zhouxinyu commented on a diff in the pull request:
https://github.com/apache/incubator-rocketmq/pull/31#discussion_r95059198
--- Diff: store/src/main/java/org/apache/rocketmq/store/CommitLog.java ---
@@ -1045,7 +1045,7 @@ public void run() {
while (!this.isStopped()) {
try {
- this.waitForRunning(0);
+ this.waitForRunning(1000);
--- End diff --
`GroupCommitService` will be used when broker is in `SYNC_FLUSH`, so the
flushCommitLogService need always `doCommit` without a break.
And this won't cause 100% CPU usage unless your server only has one cpu
core.
BTW, how about use `ASYNC_FLUSH` if you mind.
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