[Glass] FindFreeFrame: potential infinite loop

[Dale Henrichs via Glass]

Johan,

I've forwarded this to engineering ... did the large machine help you 
get past the problem?

If I'm not mistaken, these days, you will get this message if you fill 
the SPC with ditry pages for the current transaction (i.e., the isze of 
your transaction in dirty pages is larger than the SPC).... statmons 
during the restore would help to confirm this ...

Dale

On 2/24/15 8:23 AM, Johan Brichau via Glass wrote:
> Hi,
>
> I’m running into this issue during a restore of a backup in GS 3.1.0.5
> It says:
> FindFreeFrame: potential infinite loop at 02/24/15 17:02:19 CET
> And I see the pgsvrmain process hitting 100% and I eventually kill the 
> entire process because it’s taking too long.
> The stone log files are not giving me any info. After killing the 
> restore process,
>
> The SPC is a 500MB one and the backup is of a database of 18GB.
> I’m going to try restoring on a larger machine later tonight and see 
> what the issue is but I wonder what the constraints on the SPC are 
> during a restore from backup?
>
> cheers
> Johan
>
>> On 16 Jul 2014, at 18:47, Dale Henrichs 
>> <dale.henrichs at gemtalksystems.com 
>> <mailto:dale.henrichs at gemtalksystems.com>> wrote:
>>
>> Pieter,
>>
>> This message indicates that you've filled up your SPC. The likely 
>> situation is that you've got one or more gems in the process of doing 
>> "large commits" that are hogging most of the pages in the SPC. Gems 
>> are allowed to preempt most pages from the cache, but pages that are 
>> involved in a commit cannot be pre-empted and _could_ lead this 
>> situation....
>>
>> If you are not running statmon, you should. Statmonitor has a number 
>> of stats that make it possible to view the health of the SPC and we 
>> can pretty much tell what's wrong by looking at the statmon output.
>>
>> Dale
>>
>>
>> On Wed, Jul 16, 2014 at 12:32 AM, <pieter at nagel.co.za 
>> <mailto:pieter at nagel.co.za>> wrote:
>>
>>     A Topaz session on a staging server just suffered the following
>>     error:
>>
>>     potential infinite loop at 07/16/2014 07:49:17 SAST
>>     FindFreeFrame: found free page and exited loop at 07/16/2014
>>     07:50:21 SAST
>>     (64 seconds)
>>     FindFreeFrame: potential infinite loop at 07/16/2014 07:50:31 SAST
>>     FindFreeFrame: found free page and exited loop at 07/16/2014
>>     07:52:36 SAST
>>     (125 seconds)
>>     FindFreeFrame: potential infinite loop at 07/16/2014 07:52:46 SAST
>>     FindFreeFrame: found free page and exited loop at 07/16/2014
>>     08:09:40 SAST
>>     (1014 seconds)
>>
>>     [Info]: Logging out at 07/16/2014 08:09:45 SAST
>>     -----------------------------------------------------
>>     GemStone: Error         Fatal
>>     Your GemStone session has been forcibly terminated, , stone shutting
>>     down
>>     Error Category: 231169 [GemStone] Number: 4059  Arg Count: 1
>>     Context : 20
>>     exception : 20
>>     Arg 1: 20
>>
>>     The symbol gem, and all our other logged in gems also logged about
>>     "FindFreeFrame: potential infinite loop" at the same time.
>>
>>     Any advice on hunting this down?
>>
>>
>>
>>     _______________________________________________
>>     Glass mailing list
>>     Glass at lists.gemtalksystems.com
>>     <mailto:Glass at lists.gemtalksystems.com>
>>     http://lists.gemtalksystems.com/mailman/listinfo/glass
>>
>>
>> _______________________________________________
>> Glass mailing list
>> Glass at lists.gemtalksystems.com <mailto:Glass at lists.gemtalksystems.com>
>> http://lists.gemtalksystems.com/mailman/listinfo/glass
>
>
>
> _______________________________________________
> Glass mailing list
> Glass at lists.gemtalksystems.com
> http://lists.gemtalksystems.com/mailman/listinfo/glass

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.gemtalksystems.com/mailman/private/glass/attachments/20150226/7d5bbf93/attachment.html>