Hi Kashif,
I've got 3 Arc-CEs in production. All on 5.0. The only problem was that
bug blocking submissions from WMS.
Solved.
Thanks, raul
On 26/06/15 14:28, Kashif Mohammad wrote:
> Hi
>
> On a related note, I am planning to upgrade from ARC 4.2 to ARC 5.0. Is there anything which I should be aware off? I have looked at the release note and it looks quite straight forward.
>
> Thanks
>
> Kashif
>
>> -----Original Message-----
>> From: Testbed Support for GridPP member institutes [mailto:TB-
>> [log in to unmask]] On Behalf Of qing
>> Sent: 26 June 2015 12:02
>> To: [log in to unmask]
>> Subject: Bug in /usr/share/arc/Condor.pm lead to ARC infoprovider crash
>>
>> Dear all:
>>
>> Some of you might notice that the BDII on Glasgow ARC-CEs sometimes
>> disappeared, which is due to random crashes on ARC infoprovider.
>>
>> After discussing with the nordugrid ARC team,it's understood that ARC does
>> not process some messages returned from condor quite well, thus makes
>> the crash of infoprovider quite random.
>>
>> To fix this bug, a line in /usr/share/arc/Condor.pm needs to be modified.
>> For ARC version 5.0.0 it's line 550, and for ARC version 4.2.0-1, it's line 545.
>>
>> $lrms_jobs{$id}{nodes} = "";
>>
>> needs to be changed to:
>>
>> $lrms_jobs{$id}{nodes} = [];
>>
>> If you see "Can't use an undefined value as an ARRAY reference at
>> /usr/share/arc/ARC0mod.pm line 135." in infoprovider.log, it means you are
>> affected. Our site is heavily affected by this bug, the infoprovider
>> on our ARC-CEs crashes many times in a day. We applied this change
>> yesterday morning and during the past 24 hours when site is fully loaded, the
>> infoprovider hasn't crashed for a single time on any of the
>> 4 ARC-CEs, this ensures me that the change fixed the bug. However,
>> since such crash happens randomly so the situation maybe different
>> between sites, I leave it to you to decide whether applying this bug fix or not.
>>
>> Cheers,Gang
|