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Subject: jobtracker not starting - access control exception - folder not owned
 by me (it claims)
From: Julian Bui <julianbui@gmail.com>
To: user@hadoop.apache.org
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--089e01176f03bf98de04da63eca8
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Hello hadoop users,

I can't start my jobtracker and am getting an
org.apache.hadoop.security.AccessControlException saying that
my hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system
is not owned by jbu (me, my user).  However, I check the folder and it is
indeed owned by me.  Details follow.

$ cd /home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/
$ ls -al
drwxrwxr-x 6 jbu jbu 4096 Apr 15 03:30 local
drwxrwxr-x 2 jbu jbu 4096 Apr 15 03:33 system

Looking inside ./hadoop-jbu-jobtracker-jbu-laptop.log:

org.apache.hadoop.security.AccessControlException: The systemdir
hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system
is not owned by jbu
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2379)
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2192)
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2186)
        at
org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:300)
        at
org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:291)
        at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4978)
2013-04-15 03:34:13,697 FATAL org.apache.hadoop.mapred.JobTracker:
org.apache.hadoop.security.AccessControlException: The systemdir
hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system
is not owned by jbu
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2379)
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2192)
        at org.apache.hadoop.mapred.JobTracker.<init>(JobTracker.java:2186)
        at
org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:300)
        at
org.apache.hadoop.mapred.JobTracker.startTracker(JobTracker.java:291)
        at org.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4978)

So it's still having problems thinking that directory is not owned by me.

The log also said:

2013-04-15 03:34:13,695 WARN org.apache.hadoop.mapred.JobTracker: Failed to
operate on mapred.system.dir
(hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system)
because of permissions.
2013-04-15 03:34:13,695 WARN org.apache.hadoop.mapred.JobTracker: Manually
delete the mapred.system.dir
(hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system)
and then start the JobTracker.

So I deleted the system directory and restarted and the same problem
appeared, that I didn't have ownership of the directory.  Still won't start.

I am using hadoop 1.0.4 on linux mint.

Any ideas?

Thanks,
-Julian

--089e01176f03bf98de04da63eca8
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">Hello hadoop users,<div><br></div><div style>I can&#39;t s=
tart my jobtracker and am getting an org.apache.hadoop.security.AccessContr=
olException saying that my=A0hdfs://localhost:9000/home/jbu/hadoop_local_in=
stall/hadoop-1.0.4/tmp/mapred/system is not owned by jbu (me, my user). =A0=
However, I check the folder and it is indeed owned by me. =A0Details follow=
.</div>
<div style><br></div><div style><div>$ cd /home/jbu/hadoop_local_install/ha=
doop-1.0.4/tmp/mapred/</div><div>$ ls -al<br></div><div>drwxrwxr-x 6 jbu jb=
u 4096 Apr 15 03:30 local<br></div><div>drwxrwxr-x 2 jbu jbu 4096 Apr 15 03=
:33 system<br>
</div><div><br></div><div style>Looking inside=A0./hadoop-jbu-jobtracker-jb=
u-laptop.log:</div><div style><br></div><div><div>org.apache.hadoop.securit=
y.AccessControlException: The systemdir hdfs://localhost:9000/home/jbu/hado=
op_local_install/hadoop-1.0.4/tmp/mapred/system is not owned by jbu</div>
<div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.JobTracker.&lt;init&gt;(Jo=
bTracker.java:2379)</div><div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.J=
obTracker.&lt;init&gt;(JobTracker.java:2192)</div><div>=A0 =A0 =A0 =A0 at o=
rg.apache.hadoop.mapred.JobTracker.&lt;init&gt;(JobTracker.java:2186)</div>
<div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.JobTracker.startTracker(Jo=
bTracker.java:300)</div><div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.Jo=
bTracker.startTracker(JobTracker.java:291)</div><div>=A0 =A0 =A0 =A0 at org=
.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4978)</div>
<div>2013-04-15 03:34:13,697 FATAL org.apache.hadoop.mapred.JobTracker: org=
.apache.hadoop.security.AccessControlException: The systemdir hdfs://localh=
ost:9000/home/jbu/hadoop_local_install/hadoop-1.0.4/tmp/mapred/system is no=
t owned by jbu</div>
<div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.JobTracker.&lt;init&gt;(Jo=
bTracker.java:2379)</div><div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.J=
obTracker.&lt;init&gt;(JobTracker.java:2192)</div><div>=A0 =A0 =A0 =A0 at o=
rg.apache.hadoop.mapred.JobTracker.&lt;init&gt;(JobTracker.java:2186)</div>
<div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.JobTracker.startTracker(Jo=
bTracker.java:300)</div><div>=A0 =A0 =A0 =A0 at org.apache.hadoop.mapred.Jo=
bTracker.startTracker(JobTracker.java:291)</div><div>=A0 =A0 =A0 =A0 at org=
.apache.hadoop.mapred.JobTracker.main(JobTracker.java:4978)</div>
</div><div><br></div><div style>So it&#39;s still having problems thinking =
that directory is not owned by me.</div><div style><br></div><div style>The=
 log also said:</div><div style><br></div><div style><div>2013-04-15 03:34:=
13,695 WARN org.apache.hadoop.mapred.JobTracker: Failed to operate on mapre=
d.system.dir (hdfs://localhost:9000/home/jbu/hadoop_local_install/hadoop-1.=
0.4/tmp/mapred/system) because of permissions.</div>
<div>2013-04-15 03:34:13,695 WARN org.apache.hadoop.mapred.JobTracker: Manu=
ally delete the mapred.system.dir (hdfs://localhost:9000/home/jbu/hadoop_lo=
cal_install/hadoop-1.0.4/tmp/mapred/system) and then start the JobTracker.<=
/div>
<div><br></div><div style>So I deleted the system directory and restarted a=
nd the same problem appeared, that I didn&#39;t have ownership of the direc=
tory. =A0Still won&#39;t start.</div><div style><br></div><div style>I am u=
sing hadoop 1.0.4 on linux mint.</div>
<div style><br></div><div style>Any ideas? =A0</div><div style><br></div><d=
iv style>Thanks,</div><div style>-Julian</div></div></div></div>

--089e01176f03bf98de04da63eca8--