The exact timing of the issue is to strange is there a backup job running
at midnight. Or some other timed job that could be eating the ram or disk
IO. Possibly one that is reliant on ldap queries that would otherwise be
inocuious.
On May 16, 2012 7:51 AM, "Gregory Matthews" <greg.matthews(a)diamond.ac.uk>
wrote:
On 15/05/12 19:22, Brad Schuetz wrote:
> Of the 7 replicas, 5 are attached to one network, and 2 are on another
> network. The 5 are queried a LOT, the other 2 barely get any traffic at
> all. All, however, are getting the same traffic that they were getting
> when I was using previous versions of the LDAP server.
>
> The 2 that are barely used I've checked for excessive queries being run
> at the point when load goes crazy and they are getting the usual minimal
> load.
>
> Also that doesn't explain why it's always 24 hours that it goes
> haywire. It doesn't matter when I restart the service, it could be
> restarted at 2am, then in 24 hours it will go crazy IO load.
>
do you know what the IO is? is it swapping? are you running collectl or
similar so you can look at historic performance data?
G
> --
> Brad
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Greg Matthews 01235 778658
Scientific Computing Group Leader
Diamond Light Source Ltd. OXON UK
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