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https://issues.apache.org/jira/browse/HDFS-17766?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17939878#comment-17939878
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ASF GitHub Bot commented on HDFS-17766:
---------------------------------------
hfutatzhanghb commented on code in PR #7561:
URL: https://github.com/apache/hadoop/pull/7561#discussion_r2022096675
##########
hadoop-hdfs-project/hadoop-hdfs-rbf/src/main/java/org/apache/hadoop/hdfs/server/federation/router/RouterRpcClient.java:
##########
@@ -199,8 +199,13 @@ public RouterRpcClient(Configuration conf, Router router,
} else {
workQueue = new LinkedBlockingQueue<>();
}
- this.executorService = new ThreadPoolExecutor(numThreads, numThreads,
- 0L, TimeUnit.MILLISECONDS, workQueue, threadFactory);
+
+ if (router.isAsync()) {
+ this.executorService = null;
+ } else {
+ this.executorService = new ThreadPoolExecutor(numThreads, numThreads,
+ 0L, TimeUnit.MILLISECONDS, workQueue, threadFactory);
+ }
Review Comment:
@KeeProMise Thanks very much for this nice suggestion. It looks better and
i will optimize this PR base on your advise.
> [ARR] Avoid initializing unused threadPool in RouterAsyncRpcClient
> ------------------------------------------------------------------
>
> Key: HDFS-17766
> URL: https://issues.apache.org/jira/browse/HDFS-17766
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: rbf
> Reporter: farmmamba
> Assignee: farmmamba
> Priority: Major
> Labels: pull-request-available
>
> Avoid initializing unused threadPool in RouterAsyncRpcClient.
> This can save thread resources.
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