[Labs-l] NFS server network capacity upgrade

[Petr Bena]

what about doing some steps to optimize current resource usage so that
it's not needed to put more and more money to increase the HW
resources?

for example I believe there is a number of tools that are using nfs
servers in insane way, for example generating tons of temporary data
that could be instead stored to /tmp instead of /data/project also the
static binaries that are in /data/project could be probably cached in
memory somehow so that they don't need to be loaded over network
everytime the task restart.

Perhaps installing sar-like monitoring tool on nfs server would help
to discover which tool uses the nfs most and such a report could help
developers of these tools to figure out where is a need for
optimization. I myself have some idea of how labs work so my own tools
are usually very optimized to use these network resources (and even
disk storage) as less as possible, but others might not be aware of
that and may need some help optimizing these.

On Fri, May 23, 2014 at 6:28 PM, Marc A. Pelletier <marc at uberbox.org> wrote:
> Hello everyone,
>
> In the following week or two, we are planning on adding another bound
> network port to increase the NFS server's bandwidth (which is,
> currently, saturating at regular interval).
>
> This will imply a short period of downtime (on the order of 10 minutes
> or so) during which no NFS service will be provided.  In theory, this
> will result in file access simply stalling and resuming at the end of
> the outage, but processes that have timeouts may be disrupted (in
> particular, web service access will likely report gateway issues during
> that interval).
>
> While this is not set in stone, I am aiming for Friday, May 30 at 18:00
> UTC for the downtime.  I will notify this list with a confirmation or a
> new schedule in at least three days in advance.
>
> Thanks for your patience,
>
> -- Marc
>
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