[horde] 100% CPU consumption

[Jan Schneider]

Zitat von Oriol Casas <oriolcasasgui at gmail.com>:

> Hi, all.
>
> We have played with Horde 3.3.6 for mailing purposes only (with postfix) for
> a while and all looked fine with a few users.
>
> When we released it for production (about 200 users) CPU consumption went up
> to 100% mostly due to httpd processes.
>
> Output from apachetop shows high number of requests/sec of two scripts
> (login.php & index.php):
>
>
>
> last hit: 20:11:01         atop runtime:  0 days, 00:18:50
> 20:11:02
>
> All:         9676 reqs (   8.6/sec)         10.8M (10002.9B/sec)
> 1168.2B/req
>
> 2xx:    3853 (39.8%) 3xx:    5804 (60.0%) 4xx:    19 ( 0.2%) 5xx:     0 (
> 0.0%)
>
> R ( 30s):     260 reqs (   8.7/sec)        204.2K ( 6969.5B/sec)
> 804.2B/req
>
> 2xx:      88 (33.8%) 3xx:     171 (65.8%) 4xx:     1 ( 0.4%) 5xx:     0 (
> 0.0%)
>
>
>
>  REQS REQ/S    KB KB/S URL
>
>   171  6.33   0.0  0.0*/services/portal/index.php

The portal is refreshing automatically, but for this rate you need  
about 400 concurrent users all having their refresh time set to 1/m.  
Since we even allow 0.5/m, 200 users might be able to generate this.  
If that is really your problem you should consider locking this  
preference, using a lower default, or removing some higher refresh  
rates from the list.

>    81  2.70 195.9  6.5 /login.php
>
>     4  0.16   5.2  0.2 /services/portal/sidebar.php
>
>     2  0.07   0.0  0.0 *
>
>     1  0.07   0.3  0.0 /test.html
>
>     1  0.20   2.8  0.6 /imp/contacts.php
>
>
> We read the Admin FAQs but nothing helped. Has someone had a similar
> experience?
> Any hints about troubleshooting this issue?
>
>
> Thank you for your support.
>
>
>
> Brgds
> Oriol Casas
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>



Jan.

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