smengcl commented on code in PR #11454:
URL: https://github.com/apache/ozone/pull/11454#discussion_r4385119225
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hadoop-hdds/client/src/main/java/org/apache/hadoop/hdds/scm/XceiverClientManager.java:
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@@ -91,6 +98,10 @@ public XceiverClientManager(ConfigurationSource conf,
Objects.requireNonNull(conf, "conf == null");
long staleThresholdMs = clientConf.getStaleThreshold(MILLISECONDS);
+ // at most one thread, which exits when idle
+ this.closeExecutor = new ThreadPoolExecutor(0, 1, 60, TimeUnit.SECONDS,
Review Comment:
Done. The queue is now unbounded, so a close falls back to the caller thread
only when the manager is already closed.
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