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From "Mukul Kumar Singh (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11887) XceiverClientManager should close XceiverClient on eviction from cache
Date Fri, 26 May 2017 02:47:04 GMT
Mukul Kumar Singh created HDFS-11887:
----------------------------------------

             Summary: XceiverClientManager should close XceiverClient on eviction from cache
                 Key: HDFS-11887
                 URL: https://issues.apache.org/jira/browse/HDFS-11887
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: ozone
            Reporter: Mukul Kumar Singh
            Assignee: Mukul Kumar Singh


XceiverClientManager doesn't close client on eviction which can leak resources.

{code}
public XceiverClientManager(Configuration conf) {
.
.
.
            public void onRemoval(
                RemovalNotification<String, XceiverClientWithAccessInfo>
                  removalNotification) {
              // If the reference count is not 0, this xceiver client should not
              // be evicted, add it back to the cache.
              WithAccessInfo info = removalNotification.getValue();
              if (info.hasRefence()) {
                synchronized (XceiverClientManager.this.openClient) {
                  XceiverClientManager.this
                      .openClient.put(removalNotification.getKey(), info);
                }
              }
{code}



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