Deadlock in IPC
---------------
Key: HADOOP-7332
URL: https://issues.apache.org/jira/browse/HADOOP-7332
Project: Hadoop Common
Issue Type: Bug
Components: ipc
Affects Versions: 0.22.0
Reporter: Todd Lipcon
Fix For: 0.22.0
Saw this during a run of TestIPC on 0.22 branch:
[junit] Java stack information for the threads listed above:
[junit] ===================================================
[junit] "IPC Client (47) connection to /0:0:0:0:0:0:0:0:48853 from an
unknown user":
[junit] at
org.apache.hadoop.ipc.Client$ParallelResults.callComplete(Client.java:879)
[junit] - waiting to lock <0x00000000f599ef88> (a
org.apache.hadoop.ipc.Client$ParallelResults)
[junit] at
org.apache.hadoop.ipc.Client$ParallelCall.callComplete(Client.java:862)
[junit] at
org.apache.hadoop.ipc.Client$Call.setException(Client.java:185)
[junit] - locked <0x00000000f59e2818> (a
org.apache.hadoop.ipc.Client$ParallelCall)
[junit] at
org.apache.hadoop.ipc.Client$Connection.cleanupCalls(Client.java:843)
[junit] at
org.apache.hadoop.ipc.Client$Connection.close(Client.java:832)
[junit] - locked <0x00000000f59d8a90> (a
org.apache.hadoop.ipc.Client$Connection)
[junit] at org.apache.hadoop.ipc.Client$Connection.run(Client.java:708)
[junit] "Thread-242":
[junit] at
org.apache.hadoop.ipc.Client$Connection.markClosed(Client.java:788)
[junit] - waiting to lock <0x00000000f59d8a90> (a
org.apache.hadoop.ipc.Client$Connection)
[junit] at
org.apache.hadoop.ipc.Client$Connection.sendParam(Client.java:742)
[junit] at org.apache.hadoop.ipc.Client.call(Client.java:1109)
[junit] - locked <0x00000000f599ef88> (a
org.apache.hadoop.ipc.Client$ParallelResults)
[junit] at
org.apache.hadoop.ipc.TestIPC$ParallelCaller.run(TestIPC.java:135)
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