[Linux-cluster] Heavy writing to GFS partition bringing down GFS cluster

[Marcelo Matus]

It seems we observed something similar in our cluster (20 nodes)
when testing Bonnie in parallel ( using -s 5000, ie 5GB per node).

We have Opteron CPUs, do you also use opterons?

Marcelo



Duncan Morgan wrote:

>We are not 100% certain of this but think that very heavy reads/writes
>on a GFS mount elevate the load on the individual nodes considerably and
>result in crashing the entire (14-node) cluster. It appears that a
>shared PHP session ID directory is the primary cause of this.
>
>Does anyone have any experience similar to this? 
>
>Thanks in advance,
>Duncan Morgan
>
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