Hello,

On Tue, 12 Jul 2016 08:39:16 +0200 (CEST) Wido den Hollander wrote:

> Hi,
> 
> I am upgrading a 1800 OSD cluster from Hammer 0.94.5 to 0.94.7 prior to going 
> to Jewel and while doing so I see the monitors being flooded with these 
> messages:
>
Google is your friend (and so is the NSA):
---
http://www.spinics.net/lists/ceph-devel/msg30450.html
---

That's also one of the reasons that despite only having a fraction of your
or Dan's OSDs I'm not upgrading to 0.94.7...

Christian

> 2016-07-12 08:28:12.919748 osd.1200 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.921943 osd.1338 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.923814 osd.353 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.939370 osd.1200 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.941482 osd.1338 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.960100 osd.1338 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:12.979404 osd.1338 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.012463 osd.353 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.039417 osd.353 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.079893 osd.353 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.111176 osd.575 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.135279 osd.353 [WRN] failed to encode map e130549 with 
> expected crc
> 2016-07-12 08:28:13.144697 osd.575 [WRN] failed to encode map e130549 with 
> expected crc
> 
> This just goes on and on. The flood of messages cause the monitors to start 
> consuming a bit of CPU which makes the cluster operate slower.
> 
> I am restarting the OSDs slowly and when I stop doing so the messages 
> disappear and the cluster operates just fine.
> 
> I know that the messages pop up due to a version mismatch, but is there any 
> way to suppress them?
> 
> Wido
> _______________________________________________
> ceph-users mailing list
> ceph-users@lists.ceph.com
> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
> 


-- 
Christian Balzer        Network/Systems Engineer                
ch...@gol.com           Global OnLine Japan/Rakuten Communications
http://www.gol.com/
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