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From "Ryan Wu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-15742) Log if ipc backoff is enabled in CallQueueManager
Date Thu, 13 Sep 2018 07:15:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-15742?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ryan Wu updated HADOOP-15742:
-----------------------------
    Attachment: HADOOP-15742.001.patch

> 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
>
>
> 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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