Ceph » CephFS

Jobs have started failing with the following trace.

nwatkins@kyoto:~/projects/hadoop-common$ bin/hadoop jar build/hadoop-examples-1.0.4-SNAPSHOT.jar teragen 1000 input3
13/03/23 11:51:13 INFO ceph.CephFileSystem: selectDataPool path=ceph://127.0.0.1:6789/tmp/hadoop-nwatkins/mapred/staging/nwatkins/.staging/job_201303231142_0006/job.jar pool:repl=data:2 wanted=3
Generating 1000 using 2 maps with step of 500
13/03/23 11:51:13 INFO ceph.CephFileSystem: selectDataPool path=ceph://127.0.0.1:6789/tmp/hadoop-nwatkins/mapred/staging/nwatkins/.staging/job_201303231142_0006/job.split pool:repl=data:2 wanted=3
13/03/23 11:51:13 INFO ceph.CephFileSystem: selectDataPool path=ceph://127.0.0.1:6789/tmp/hadoop-nwatkins/mapred/staging/nwatkins/.staging/job_201303231142_0006/job.splitmetainfo pool:repl=data:2 wanted=3
13/03/23 11:51:13 INFO ceph.CephFileSystem: selectDataPool path=ceph://127.0.0.1:6789/tmp/hadoop-nwatkins/mapred/staging/nwatkins/.staging/job_201303231142_0006/job.xml pool:repl=data:2 wanted=3
13/03/23 11:51:13 INFO mapred.JobClient: Cleaning up the staging area ceph://127.0.0.1:6789/tmp/hadoop-nwatkins/mapred/staging/nwatkins/.staging/job_201303231142_0006
13/03/23 11:51:13 ERROR security.UserGroupInformation: PriviledgedActionException as:nwatkins cause:org.apache.hadoop.ipc.RemoteException: java.io.IOException: java.io.FileNotFoundException: 
        at org.apache.hadoop.mapred.JobTracker.submitJob(JobTracker.java:3943)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:601)
        at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:563)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1388)
        at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:1384)
        at java.security.AccessController.doPrivileged(Native Method)
        at javax.security.auth.Subject.doAs(Subject.java:415)
        at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
        at org.apache.hadoop.ipc.Server$Handler.run(Server.java:1382)
Caused by: java.io.FileNotFoundException: 
        at com.ceph.fs.CephMount.native_ceph_lstat(Native Method)
        at com.ceph.fs.CephMount.lstat(CephMount.java:458)
        at org.apache.hadoop.fs.ceph.CephTalker.lstat(CephTalker.java:201)
        at org.apache.hadoop.fs.ceph.CephFileSystem.getFileStatus(CephFileSystem.java:208)
        at org.apache.hadoop.mapred.JobInProgress.<init>(JobInProgress.java:406)
        at org.apache.hadoop.mapred.JobTracker.submitJob(JobTracker.java:3941)
        ... 11 more