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From "Jimmy Xiang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9050) HBaseClient#call could hang
Date Fri, 26 Jul 2013 21:53:48 GMT
Jimmy Xiang created HBASE-9050:
----------------------------------

             Summary: HBaseClient#call could hang
                 Key: HBASE-9050
                 URL: https://issues.apache.org/jira/browse/HBASE-9050
             Project: HBase
          Issue Type: Bug
          Components: Client
    Affects Versions: 0.94.10
            Reporter: Jimmy Xiang
            Assignee: Jimmy Xiang
            Priority: Minor


In HBaseClient#call, we have

{code}
    connection.sendParam(call);                 // send the parameter
    boolean interrupted = false;
    //noinspection SynchronizationOnLocalVariableOrMethodParameter
    synchronized (call) {
      while (!call.done) {
        try {
          call.wait();                           // wait for the result
{code}
sendParam could do nothing if the connection is closed right after the call is added into
the queue.  Since the connection is closed, we won't get any response, therefore, we won't
get any notify call.  So we will keep waiting here for something won't happen.

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