[Systems] aslo-web went down

[dfarning at sugarlabs.org]

Yes the freeze is related to the interaction of duplicity, gpg, and apache.  The machine got very sluggish during the back up.  At one point duplicity was using over 3G of cache.

The apache processes started building up, making the memory situation worse. I killed apache, and the memory held at between 80 and 60M free.

On Fri, Dec 4, 2009 at 11:32 AM,  <dfarning at sugarlabs.org> wrote:
> This morning, aslo-web went down for a couple of hours.  Sadly, the load
> balancer did not detect the failure, I'll have to work on a better 'check'
> script.
>
> While I am not sure of the exact cause, the failure seemed to occur during
> or just after a backup....
>
> The daily eth0 spike happened at the same time as spikes in fork rate, load
> average, and Inode table usage.  Then the machine became unresponsive.
>
> At the time I was watching memory usage as the load increased so I did not
> notice these other spikes.
>
> david
>
>

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