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From "Patrick Hunt (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2976) regression with MAPREDUCE-2289 - setPermission passed immutable FsPermission (rpc failure)
Date Fri, 09 Sep 2011 17:47:08 GMT
regression with MAPREDUCE-2289 - setPermission passed immutable FsPermission (rpc failure)
------------------------------------------------------------------------------------------

                 Key: MAPREDUCE-2976
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2976
             Project: Hadoop Map/Reduce
          Issue Type: Bug
          Components: job submission
    Affects Versions: 0.22.0
            Reporter: Patrick Hunt


MAPREDUCE-2289 introduced the following change:

{noformat}
+        fs.setPermission(stagingArea, JOB_DIR_PERMISSION);
{noformat}

JOB_DIR_PERMISSION is an immutable FsPermission which cannot be used in RPC calls, it results
in the following exception:

{noformat}
2011-09-08 16:31:45,187 WARN org.apache.hadoop.ipc.Server: Unable to read call parameters
for client 127.0.0.1
java.lang.RuntimeException: java.lang.NoSuchMethodException: org.apache.hadoop.fs.permission.FsPermission$2.<init>()
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:115)
        at org.apache.hadoop.io.WritableFactories.newInstance(WritableFactories.java:53)
        at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:236)
        at org.apache.hadoop.ipc.RPC$Invocation.readFields(RPC.java:104)
        at org.apache.hadoop.ipc.Server$Connection.processData(Server.java:1337)
        at org.apache.hadoop.ipc.Server$Connection.processOneRpc(Server.java:1315)
        at org.apache.hadoop.ipc.Server$Connection.readAndProcess(Server.java:1215)
        at org.apache.hadoop.ipc.Server$Listener.doRead(Server.java:566)
        at org.apache.hadoop.ipc.Server$Listener$Reader.run(Server.java:363)
Caused by: java.lang.NoSuchMethodException: org.apache.hadoop.fs.permission.FsPermission$2.<init>()
        at java.lang.Class.getConstructor0(Class.java:2706)
        at java.lang.Class.getDeclaredConstructor(Class.java:1985)
        at org.apache.hadoop.util.ReflectionUtils.newInstance(ReflectionUtils.java:109)
        ... 8 more
{noformat}


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