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From Jianfeng Jia <jianfeng....@gmail.com>
Subject Re: Help! Any idea to stop AsterixDB from recovering?
Date Mon, 16 May 2016 23:10:58 GMT
I think the BuffeCache is the core issue, the recovery process may just run into the same spin
trap where it was stopped.
And I create another issue that we should be able to Abort the task so that we don’t need
to restart the server.

> On May 16, 2016, at 7:24 AM, Michael Blow <mblow.apache@gmail.com> wrote:
> 
> This might be related: (ASTERIXDB-1438) BufferCache spins indefinitely when
> cache is exceeded.
> 
> https://issues.apache.org/jira/browse/ASTERIXDB-1438
> 
> Thanks,
> 
> -MDB
> 
> On Mon, May 16, 2016 at 1:52 AM Mike Carey <dtabass@gmail.com> wrote:
> 
>> Glad it worked out - can someone also capture the core issue in JIRA?  Thx!
>> On May 15, 2016 11:40 PM, "Jianfeng Jia" <jianfeng.jia@gmail.com> wrote:
>> 
>>> Great! The server is back now. Thanks a lot!
>>>> On May 15, 2016, at 2:26 PM, Murtadha Hubail <hubailmor@gmail.com>
>>> wrote:
>>>> 
>>>> You can delete the existing log files and create new empty ones with
>>> incremented  log file number, but it is very important that you don't
>>> delete the checkpoint file.
>>>> Of course any data in the old log files will be lost, but the data
>>> already on disk will be available.
>>>> 
>>>>> On May 15, 2016, at 1:23 PM, Jianfeng Jia <jianfeng.jia@gmail.com>
>>> wrote:
>>>>> 
>>>>> Hi,
>>>>> We submitted a long running join+insert query and stop the cluster to
>>> stop running it. However, when it restarted it ran the recovery forever,
>>>>> the logs shows that it is creating a lot of buffer cache.
>>>>> 
>>>>> In order to bring the cluster back to answer the query, is there any
>>> hacking solutions? such as remove the recovery txnlogs? I’m worried that
>> it
>>> will ruin the cluster somehow.
>>>>> We are in a contest so any early helps are really appreciated! Thanks!
>>>>> 
>>>>> 
>>>>> Best,
>>>>> 
>>>>> Jianfeng Jia
>>>>> PhD Candidate of Computer Science
>>>>> University of California, Irvine
>>>>> 
>>> 
>>> 
>>> 
>>> Best,
>>> 
>>> Jianfeng Jia
>>> PhD Candidate of Computer Science
>>> University of California, Irvine
>>> 
>>> 
>> 



Best,

Jianfeng Jia
PhD Candidate of Computer Science
University of California, Irvine


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