hfutatzhanghb opened a new pull request, #6503:
URL: https://github.com/apache/hadoop/pull/6503
### Description of PR
Refer to HDFS-17359
In method DFSStripedOutputStream#checkStreamerFailures, we have below codes:
```java
Set<StripedDataStreamer> newFailed = checkStreamers();
if (newFailed.size() == 0) {
return;
} if (isNeedFlushAllPackets) {
// for healthy streamers, wait till all of them have fetched the new
block
// and flushed out all the enqueued packets.
flushAllInternals();
}
// recheck failed streamers again after the flush
newFailed = checkStreamers();
```
We should better move the re-check logic into if condition to reduce useless
invocation.
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