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https://issues.apache.org/jira/browse/HADOOP-15742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16614120#comment-16614120
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Mingliang Liu commented on HADOOP-15742:
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+1
> Log if ipc backoff is enabled in CallQueueManager
> -------------------------------------------------
>
> Key: HADOOP-15742
> URL: https://issues.apache.org/jira/browse/HADOOP-15742
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 3.1.1
> Reporter: Yiqun Lin
> Assignee: Ryan Wu
> Priority: Minor
> Attachments: HADOOP-15742.001.patch, HADOOP-15742.002.patch
>
>
> Currently we don't log the info of ipc backoff. It will look good to print
> this as well so that makes users know if we enable this.
> {code:java}
> public CallQueueManager(Class<? extends BlockingQueue<E>> backingClass,
> Class<? extends RpcScheduler> schedulerClass,
> boolean clientBackOffEnabled, int maxQueueSize, String namespace,
> Configuration conf) {
> int priorityLevels = parseNumLevels(namespace, conf);
> this.scheduler = createScheduler(schedulerClass, priorityLevels,
> namespace, conf);
> BlockingQueue<E> bq = createCallQueueInstance(backingClass,
> priorityLevels, maxQueueSize, namespace, conf);
> this.clientBackOffEnabled = clientBackOffEnabled;
> this.putRef = new AtomicReference<BlockingQueue<E>>(bq);
> this.takeRef = new AtomicReference<BlockingQueue<E>>(bq);
> LOG.info("Using callQueue: " + backingClass + " queueCapacity: " +
> maxQueueSize + " scheduler: " + schedulerClass);
> }
> {code}
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