chaplinthink commented on a change in pull request #3041:
URL: https://github.com/apache/hudi/pull/3041#discussion_r666633342
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File path:
hudi-timeline-service/src/main/java/org/apache/hudi/timeline/service/RequestHandler.java
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@@ -132,15 +132,13 @@ private boolean syncIfLocalViewBehind(Context ctx) {
String lastKnownInstantFromClient =
ctx.queryParam(RemoteHoodieTableFileSystemView.LAST_INSTANT_TS,
HoodieTimeline.INVALID_INSTANT_TS);
SyncableFileSystemView view = viewManager.getFileSystemView(basePath);
- synchronized (view) {
Review comment:
Thanks a lot for reply. Do you mean the `synchornized ` is to ensure
`HoodieTimeline newTimeline =
metaClient.reloadActiveTimeline().filterCompletedAndCompactionInstants();`
concurrently?
In fact, we are also to do this right ?
```
@Override
public void sync() {
HoodieTimeline oldTimeline = getTimeline();
try {
writeLock.lock();
HoodieTimeline newTimeline =
metaClient.reloadActiveTimeline().filterCompletedAndCompactionInstants();
runSync(oldTimeline, newTimeline);
} finally {
writeLock.unlock();
}
}
```
I am confused when I see the code that we use `synchornized` and
`writeLock` at the same time.
I agree to validate this with more concurrent testing. Currently i have not
encountered concurrency bottlenecks.
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