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From "Wei Yan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-13232) RBF: ConnectionPool should return first usable connection
Date Tue, 06 Mar 2018 00:59:00 GMT
Wei Yan created HDFS-13232:
------------------------------

             Summary: RBF: ConnectionPool should return first usable connection
                 Key: HDFS-13232
                 URL: https://issues.apache.org/jira/browse/HDFS-13232
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Wei Yan
            Assignee: Wei Yan


In current ConnectionPool.getConnection(), it will return the first active connection:
{code:java}
for (int i=0; i<size; i++) {
  int index = (threadIndex + i) % size;
  conn = tmpConnections.get(index);
  if (conn != null && !conn.isUsable()) {
    return conn;
  }
}
{code}
Here "!conn.isUsable()" should be "conn.isUsable()".



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