hadoop-hdfs-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Joey Echeverria <j...@cloudera.com>
Subject Re: Namenode restart giving IllegalArgumentException
Date Wed, 04 May 2011 20:13:43 GMT
How much data do you have? It takes some time for all of the datanodes
to report that all blocks are accounted for.

-Joey

On Wed, May 4, 2011 at 4:05 PM, Himanshu Vashishtha
<hvashish@cs.ualberta.ca> wrote:
> Hey,
> Every thing comes up for good.
> Why this delay of 6 minutes I wonder? And I see that this delay has nothing
> to do with the accidental switch-off.
> Do I need to edit my conf? I am using the machine-name assigned to this
> machine for its entry in conf/slaves file. and host command also confirms
> that name-ip pair is working good.
>
> Thanks,
> Himanshu
>
> On Wed, May 4, 2011 at 12:59 PM, Harsh J <harsh@cloudera.com> wrote:
>>
>> Hello,
>>
>> On Thu, May 5, 2011 at 12:04 AM, Himanshu Vashishtha <hv.csuoa@gmail.com>
>> wrote:
>> > Hello all,
>> > I was running HDFS in standalone mode where the machine got accidently
>> > turned off. On resuming it back to normal, I got this exception:
>> > ===================================================
>> > 2011-05-04 11:27:54,441 INFO org.apache.hadoop.ipc.Server: IPC Server
>> > handler 9 on 54310: starting
>> > 2011-05-04 11:27:54,470 INFO org.apache.hadoop.ipc.Server: Error
>> > register
>> > getProtocolVersion
>> > java.lang.IllegalArgumentException: Duplicate
>> > metricsName:getProtocolVersion
>> >     at
>> >
>> > org.apache.hadoop.metrics.util.MetricsRegistry.add(MetricsRegistry.java:53)
>> >     at
>> >
>> > org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:89)
>> >     at
>> >
>> > org.apache.hadoop.metrics.util.MetricsTimeVaryingRate.<init>(MetricsTimeVaryingRate.java:99)
>> >     at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:523)
>> >     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:961)
>> >     at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:957)
>> >     at java.security.AccessController.doPrivileged(Native Method)
>> >     at javax.security.auth.Subject.doAs(Subject.java:396)
>> >     at org.apache.hadoop.ipc.Server$Handler.run(Server.java:955)
>> >
>>
>> Is something not working with your Hadoop cluster? It would seem that
>> your NN came back up just fine, which is a good thing (it is just
>> waiting now for the DNs to come back, as per the remaining part of the
>> log -- ensure that all DNs are up as well).
>>
>> The logged exception is an INFO level one about something trying to
>> add a dupe metric name. It should be investigated (has cropped up for
>> many before), but it is pretty harmless I'd think.
>>
>> --
>> Harsh J
>
>



-- 
Joseph Echeverria
Cloudera, Inc.
443.305.9434

Mime
View raw message