[Linux-cluster] Performance degradation after reboot
Kadlecsik Jozsef
kadlec at mail.kfki.hu
Wed Feb 4 10:39:09 UTC 2009
Hello,
On Tue, 3 Feb 2009, Kadlecsik Jozsef wrote:
> Due to a major power restructuring we had to shutdown our GFS cluster at
> Saturday. Since then we have been suffering a serious performance
> degradation. Previously system load was usually less than 1, in spikes
> 3-4. Yesterday we had 180(!), without no apparent reason: network
> interfaces are OK (settings just right, no error/packet loss), no settings
> modified, usage of the cluster did not change. GFS is over AoE: the Coraid
> boxes are just fine, no RAID degradation.
Sorry for the noise: it turned out that one interface did go wrong:
instead of 1000Mb/s it worked at 10Mb/s. Sigh.
Best regards,
Jozsef
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