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From Stack <st...@duboce.net>
Subject Re: org.apache.hadoop.hbase.UnknownScannerException: Name: -1
Date Wed, 28 Apr 2010 16:45:18 GMT
Does it work if not transactional in the mix?  That might help narrow
down what is going on here?
St.Ack

On Tue, Apr 27, 2010 at 6:51 AM, Slava Gorelik <slava.gorelik@gmail.com> wrote:
> Hi to All.
> Tried to investigate a bit this problem in the debugger.
> It looks like the failure is in connecting region server to open scanner.
> And it seems that there problem to connect region server to open scanner (in
> any other cases region server is available
> for example for put/get operations) , after 10 tries the scanner ID is still
> -1 and it passed to the region server  (somehow
> in this case connection with region server is succeeded) and server throw an
> exception about wrong scanner name.
>
> I have only one region server that is on the same machine where master is
> located (single node installation - not a pseudo,
> including zookeeper) and also I'm using transactional table (from contrib).
>
> Any idea what could be a problem ?
>
> Best Regards.
>
>
>
> On Thu, Mar 18, 2010 at 5:54 PM, Slava Gorelik <slava.gorelik@gmail.com>wrote:
>
>> Hi.
>> I also don't have any solution yet.
>>
>> Best Regards.
>>
>>
>>
>> On Thu, Mar 18, 2010 at 8:29 AM, Alex Baranov <alex.baranov.v@gmail.com>wrote:
>>
>>> I have a similar problem, but even with standard filter, when I use it on
>>> the remote client (
>>>
>>> http://old.nabble.com/Adding-filter-to-scan-at-remote-client-causes-UnknownScannerException-td27934345.html
>>> ).
>>>
>>> Haven't solved yet.
>>>
>>> Alex Baranau
>>>
>>> On Tue, Mar 16, 2010 at 8:12 PM, Slava Gorelik <slava.gorelik@gmail.com
>>> >wrote:
>>>
>>> > Hi Dave.
>>> > Thank You for your reply, but all .out files (master and region server)
>>> are
>>> > empty from any exception.
>>> >
>>> > Best Regards.
>>> >
>>> > On Tue, Mar 16, 2010 at 7:45 PM, Dave Latham <latham@davelink.net>
>>> wrote:
>>> >
>>> > > Is there anything informative in the .out file?  I remember one time
I
>>> > had
>>> > > an error in a filter's static initializer that caused the class to
>>> fail
>>> > to
>>> > > load, and it manifested as an uncaught NoClassDefFoundError (
>>> > > https://issues.apache.org/jira/browse/HBASE-1913 ) showing up there
>>> > > instead
>>> > > of the .log file.
>>> > >
>>> > > Dave
>>> > >
>>> > > On Tue, Mar 16, 2010 at 9:52 AM, Slava Gorelik <
>>> slava.gorelik@gmail.com
>>> > > >wrote:
>>> > >
>>> > > > Hi.
>>> > > > Sure i restarted both sides.
>>> > > > The log has ony one exception that I specified - Name: -1.
>>> > > > Scanner on .META and .ROOT are works fine (I put break points
on
>>> call()
>>> > > > method that
>>> > > > actually calls openScanner() and till my scanner it works fine).
>>> > > >
>>> > > > Best Regards.
>>> > > >
>>> > > > On Tue, Mar 16, 2010 at 5:39 PM, Stack <stack@duboce.net>
wrote:
>>> > > >
>>> > > > > On Tue, Mar 16, 2010 at 1:42 AM, Slava Gorelik <
>>> > > slava.gorelik@gmail.com>
>>> > > > > wrote:
>>> > > > > > Hi.
>>> > > > > > I added my filters to the HbaseObjectWritable but the
problem is
>>> > not
>>> > > > > solved.
>>> > > > > >
>>> > > > >
>>> > > > > And for sure you restarted both sides of the connection and
both
>>> > sides
>>> > > > > are same compiled code?
>>> > > > >
>>> > > > > If so, next up will be seeing whats in the log over on the
server.
>>> > > > > Mismatched interfaces are ugly to debug.  The messages that
come
>>> out
>>> > > > > don't tell much about whats actually wrong.  If you remove
your
>>> code,
>>> > > > > all works fine?  So its just the addition of your filters
that is
>>> the
>>> > > > > prob?
>>> > > > >
>>> > > > > St.Ack
>>> > > > >
>>> > > >
>>> > >
>>> >
>>>
>>
>>
>

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