[Zope] zope timeouts

[Michele Marcionelli]

Hello

I'm running an old version of Zope which is required by our corporate design using also an older version of the CMS Silva:

    Linux Distribution: Red Hat Enterprise Linux Server release 5.5
    Linux Kernel: 2.6.18-194.8.1.el5PAE
    Zope: 2.8.9.1
    Python: 2.3.6 (with several modules, like: ldap, pil, mysql, pyxml, ...)
    Silva: 1.5.13

My problem ist that my zope server hat timeouts on displaying pages after a while that it has been started (currently this "while" is approx. 15 minutes). The only thing that helps is restarting zope.

By accident I discovered about two month ago, that running an "strace -f" on the zope process, "reactivated" it... so I could live with this hack until yesterday.

Now I'm running "strace" permanently (with all the disadvantages) and zope works "fine" for about 1 to 1.5 hours.

Here is a short recurring output of "strace":

> [pid 13408] <... futex resumed> )       = 0
> [pid 13406] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13405] futex(0xbcc12c0, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
> [pid 13408] futex(0xbcc12c0, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
> [pid 13407] <... futex resumed> )       = 0
> [pid 13405] <... futex resumed> )       = 1
> [pid 13408] <... futex resumed> )       = 1
> [pid 13405] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13408] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13406] <... futex resumed> )       = 0
> [pid 13406] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13407] futex(0xbcc12c0, FUTEX_WAKE_PRIVATE, 1) = 1
> [pid 13405] <... futex resumed> )       = 0
> [pid 13407] futex(0xbcc12c0, FUTEX_WAKE_PRIVATE, 1 <unfinished ...>
> [pid 13405] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13408] <... futex resumed> )       = 0
> [pid 13407] <... futex resumed> )       = 1
> [pid 13407] futex(0xbcc12c0, FUTEX_WAIT_PRIVATE, 0, NULL <unfinished ...>
> [pid 13405] <... futex resumed> )       = -1 EAGAIN (Resource temporarily unavailable)


I need definitively help... Any idea?

Thx,
Michele


-- 
ETH Zürich
Michele Marcionelli
IT Support Gruppe D-MATH
HG G 32.1
Rämistrasse 101
CH–8092 Zürich

michele.marcionelli at math.ethz.ch
http://www.math.ethz.ch/~michele

+41 44 632 6193 Telefon
+41 44 632 1354 Fax