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Posted to user@hbase.apache.org by Anand Nalya <an...@gmail.com> on 2014/07/23 15:08:13 UTC

Frozen HConnectionManager.HConnectionImplementation#locateRegionInMeta

Hi,

I'm using HBase 0.98.3 with hadoop 2.4.0. We have application that calls
HTable.put and in case of exception we have we create the table.

The application is freezing in unexpected manner. YourKit is
showing HConnectionManager.HConnectionImplementation#locateRegionInMeta as
frozen. Please find attached the screenshot.

Any ideas what might be the exact cause of this?

Regards,
Anand

Re: Frozen HConnectionManager.HConnectionImplementation#locateRegionInMeta

Posted by Ted Yu <yu...@gmail.com>.
When this happens again, please capture jstack and pastebin it so that we
can know whether the deadlock was due to synchronization on masterAndZKLock.

If possible, please upgrade to 0.98.4

Cheers


On Wed, Jul 23, 2014 at 6:41 AM, Ted Yu <yu...@gmail.com> wrote:

> There was no line number shown in the image.
>
> HBASE-11460 was fixed in 0.98.4 which got released yesterday. There is
> some similarity between stack trace shown in your image and the second
> stack trace of HBASE-11460.
>
> Cheers
>
> On Jul 23, 2014, at 5:24 AM, Anand Nalya <an...@gmail.com> wrote:
>
> > The image can be found at http://i.imgur.com/JTXw1cg.png
> >
> > - Anand
> >
> >
> > On 23 July 2014 18:44, Ted Yu <yu...@gmail.com> wrote:
> >
> >> Your image attachment didn't go through.
> >>
> >> Mind posting it on third party website and provide a link ?
> >>
> >> Cheers
> >>
> >> On Jul 23, 2014, at 5:08 AM, Anand Nalya <an...@gmail.com> wrote:
> >>
> >>> Hi,
> >>>
> >>> I'm using HBase 0.98.3 with hadoop 2.4.0. We have application that
> calls
> >> HTable.put and in case of exception we have we create the table.
> >>>
> >>> The application is freezing in unexpected manner. YourKit is showing
> >> HConnectionManager.HConnectionImplementation#locateRegionInMeta as
> frozen.
> >> Please find attached the screenshot.
> >>>
> >>> Any ideas what might be the exact cause of this?
> >>>
> >>> Regards,
> >>> Anand
> >>
>

Re: Frozen HConnectionManager.HConnectionImplementation#locateRegionInMeta

Posted by Ted Yu <yu...@gmail.com>.
There was no line number shown in the image. 

HBASE-11460 was fixed in 0.98.4 which got released yesterday. There is some similarity between stack trace shown in your image and the second stack trace of HBASE-11460. 

Cheers

On Jul 23, 2014, at 5:24 AM, Anand Nalya <an...@gmail.com> wrote:

> The image can be found at http://i.imgur.com/JTXw1cg.png
> 
> - Anand
> 
> 
> On 23 July 2014 18:44, Ted Yu <yu...@gmail.com> wrote:
> 
>> Your image attachment didn't go through.
>> 
>> Mind posting it on third party website and provide a link ?
>> 
>> Cheers
>> 
>> On Jul 23, 2014, at 5:08 AM, Anand Nalya <an...@gmail.com> wrote:
>> 
>>> Hi,
>>> 
>>> I'm using HBase 0.98.3 with hadoop 2.4.0. We have application that calls
>> HTable.put and in case of exception we have we create the table.
>>> 
>>> The application is freezing in unexpected manner. YourKit is showing
>> HConnectionManager.HConnectionImplementation#locateRegionInMeta as frozen.
>> Please find attached the screenshot.
>>> 
>>> Any ideas what might be the exact cause of this?
>>> 
>>> Regards,
>>> Anand
>>

Re: Frozen HConnectionManager.HConnectionImplementation#locateRegionInMeta

Posted by Anand Nalya <an...@gmail.com>.
The image can be found at http://i.imgur.com/JTXw1cg.png

- Anand


On 23 July 2014 18:44, Ted Yu <yu...@gmail.com> wrote:

> Your image attachment didn't go through.
>
> Mind posting it on third party website and provide a link ?
>
> Cheers
>
> On Jul 23, 2014, at 5:08 AM, Anand Nalya <an...@gmail.com> wrote:
>
> > Hi,
> >
> > I'm using HBase 0.98.3 with hadoop 2.4.0. We have application that calls
> HTable.put and in case of exception we have we create the table.
> >
> > The application is freezing in unexpected manner. YourKit is showing
> HConnectionManager.HConnectionImplementation#locateRegionInMeta as frozen.
> Please find attached the screenshot.
> >
> > Any ideas what might be the exact cause of this?
> >
> > Regards,
> > Anand
>

Re: Frozen HConnectionManager.HConnectionImplementation#locateRegionInMeta

Posted by Ted Yu <yu...@gmail.com>.
Your image attachment didn't go through. 

Mind posting it on third party website and provide a link ?

Cheers

On Jul 23, 2014, at 5:08 AM, Anand Nalya <an...@gmail.com> wrote:

> Hi,
> 
> I'm using HBase 0.98.3 with hadoop 2.4.0. We have application that calls HTable.put and in case of exception we have we create the table.
> 
> The application is freezing in unexpected manner. YourKit is showing HConnectionManager.HConnectionImplementation#locateRegionInMeta as frozen. Please find attached the screenshot.
> 
> Any ideas what might be the exact cause of this?
> 
> Regards,
> Anand