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HBase, mail # user - Table listed in "list", but not in .META.


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Re: Table listed in "list", but not in .META.
Mohammad Tariq 2012-08-10, 22:36
@Anil : Good Point.
@Marco : First make sure that all the AMIs running region servers are
reachable and there is no problem in DNS resolution.(As I see you are
using AWS).

Regards,
    Mohammad Tariq
On Sat, Aug 11, 2012 at 4:00 AM, anil gupta <[EMAIL PROTECTED]> wrote:
> Are you running a distributed cluster?
> If yes, do you have localhost in /etc/hosts file?
>
> You are getting reference to localhost in hbck output:
> ERROR: Region { meta => null, hdfs =>
> hdfs://localhost:9000/hbase/test2/b0d4a5f294809c94fccb3d4ce10c3b23,
> deployed =>  } on HDFS, but not listed in META or deployed on any region
> server
>
> ~Anil
>
> On Fri, Aug 10, 2012 at 3:08 PM, Marco Gallotta <[EMAIL PROTECTED]>wrote:
>
>> Here's the output from hbck -details: http://pastebin.com/ZxVZEctY
>>
>> Extract:
>>
>> 6 inconsistencies detected.
>> Status: INCONSISTENT
>>
>> 6 is the number of tables that appear in "list" but cannot be operated on
>> (which btw, includes not being able to run disable/drop on them - both ops
>> say table not found). I also just noticed "foo" does not occur in a table
>> list, although I did create it at one point but was able to clear it from
>> .META. when it also was reporting table not found when trying to
>> disable/drop it. All these come from when I ^C'ed (i.e. killed) table
>> creation when I was trying to get lzo compression working and table
>> creation was hanging.
>>
>> Is there any way to repair this? I see hbck has repair options, but I want
>> to proceed with caution.
>>
>> --
>> Marco Gallotta | Mountain View, California
>> Software Engineer, Infrastructure | Loki Studios
>> fb.me/marco.gallotta | twitter.com/marcog
>> [EMAIL PROTECTED] | +1 (650) 417-3313
>>
>> Sent with Sparrow (http://www.sparrowmailapp.com/?sig)
>>
>>
>> On Friday 10 August 2012 at 2:49 PM, anil gupta wrote:
>>
>> > Hi Marco,
>> >
>> > Did anything disastrous happen to cluster?
>> > Can you try using hbck utility of HBase.
>> > Run: 'hbase hbck -help' to get all the available options.
>> >
>> > ~Anil
>> >
>> > On Fri, Aug 10, 2012 at 2:22 PM, Marco Gallotta <[EMAIL PROTECTED](mailto:
>> [EMAIL PROTECTED])>wrote:
>> >
>> > > Hi there
>> > >
>> > > I have a few tables which show up in a "list" in the shell, but produce
>> > > "table not found" when performing any operation on them. There is no
>> > > reference of them in the .META. table. It seems to be resulting in
>> some of
>> > > the hbase services being killed every so often.
>> > >
>> > > Here are some logs from master (foo is one of the tables not found):
>> > >
>> > > 2012-08-09 20:40:44,301 FATAL org.apache.hadoop.hbase.master.HMaster:
>> > > Master server abort: loaded coprocessors are: []
>> > > 2012-08-09 20:40:44,301 FATAL org.apache.hadoop.hbase.master.HMaster:
>> > > Unexpected state : foo,,1343175078663.527bb34f4bb5e40dd42e82054d7c5485.
>> > > state=PENDING_OPEN, ts=1344570044277,
>> > > server=ip-10-170-150-10.us-west-1.compute.internal,60020,1344559455110
>> ..
>> > > Cannot transit it to OFFLINE.
>> > >
>> > >
>> > > There are also a number of the following types of error logs:
>> > >
>> > > 2012-08-09 20:10:04,308 ERROR
>> > > org.apache.hadoop.hbase.master.AssignmentManager: Failed assignment in:
>> > > ip-10-170-150-10.us-west-1.compute.internal,60020,1344559455110 due to
>> > >
>> org.apache.hadoop.hbase.regionserver.RegionAlreadyInTransitionException:
>> > > Received:OPEN for the
>> > > region:foo,,1343175078663.527bb34f4bb5e40dd42e82054d7c5485. ,which we
>> are
>> > > already trying to OPEN.
>> > >
>> > > Any ideas how to find and remove any references to these non-existent
>> > > tables?
>> > >
>> > > --
>> > > Marco Gallotta | Mountain View, California
>> > > Software Engineer, Infrastructure | Loki Studios
>> > > fb.me/marco.gallotta (http://fb.me/marco.gallotta) |
>> twitter.com/marcog (http://twitter.com/marcog)
>> > > [EMAIL PROTECTED] (mailto:[EMAIL PROTECTED]) | +1 (650) 417-3313
>> > >
>> > > Sent with Sparrow (http://www.sparrowmailapp.com/?sig)