Greetings, Eric.

On 19 ??????? 2006 ?., 20:05:37 you wrote:

> Alexey Loukianov wrote:
>> Hello all,
>> 
>> I'm forced to run a bunch of SA-specialized servers to be able to
>> handle processing of all the incoming mail to the corporate servers.
>> All the SA hosts utilize the same HA mysql for bayest storage DB, and
>> a simple king of load-balancing for SA is achieved by built in spamc
>> functionality.
>> 
>> From time to time some of SA servers tend to 'stuck'. This shows up in
>> logs like this:
>> 
>> # qmlog -s @40000000458765251acf0b74.s spamd | grep -E 'error|warn'
>> 2006-12-19 00:53:00.508318500 [10802] warn: spamd: timeout: (300 second 
>> timeout while trying to PROCESS) at /usr/bin/spamd line 1686, <GEN6356> line 
>> 254.
>> 2006-12-19 00:53:14.979634500 [11224] warn: spamd: timeout: (300 second 
>> timeout while trying to PROCESS) at /usr/bin/spamd line 1686, <GEN6395> line 
>> 337.
>> 2006-12-19 00:53:20.724340500 [11225] warn: spamd: timeout: (300 second 
>> timeout while trying to PROCESS) at /usr/bin/spamd line 1686, <GEN6400> line 
>> 319.
>> 2006-12-19 00:53:25.781288500 [11226] warn: spamd: timeout: (300 second 
>> timeout while trying to PROCESS) at /usr/bin/spamd line 1686, <GEN6403> line 
>> 300.
>> 2006-12-19 00:53:44.309364500 [10261] warn: spamd: timeout: (300 second 
>> timeout while trying to PROCESS) at /usr/bin/spamd line 1686, <GEN6428> line 
>> 319.
>> 2006-12-19 00:58:13.590168500 [10802] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6359> line 334.
>> 2006-12-19 00:58:13.590507500 [10802] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6359> line 334.
>> 2006-12-19 00:58:16.081281500 [11224] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6401> line 664.
>> 2006-12-19 00:58:16.081622500 [11224] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6401> line 664.
>> 2006-12-19 00:58:24.804143500 [11225] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6401> line 253.
>> 2006-12-19 00:58:24.804156500 [11225] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6401> line 253.
>> 2006-12-19 00:58:33.883826500 [11226] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6406> line 321.
>> 2006-12-19 00:58:33.883837500 [11226] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6406> line 321.
>> 2006-12-19 00:58:43.214455500 [10261] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6430> line 1371.
>> 2006-12-19 00:58:43.214841500 [10261] error: child processing timeout at 
>> /usr/bin/spamd line 1085, <GEN6430> line 1371.
>> 
>> From the moment the first warning shows up in the logs and until the
>> spamd would be restarted by hand processing stucks, and all the spamd
>> processes die after a 300 sec timeout, with a corresponding message in
>> logs.
>> 
>> I know that this issue is related to bayest rules, as if I turn'em off
>> in local.cf - no hangs happen. Some time ago E."S". mentioned in list
>> that there's an issue in current SA that might cause such timeouts,
>> and that it's connected with SA bayest autoexpire function. No
>> problems, turned autoexpire off in local.cf, restarted spamd, headed
>> on to crontab and set up hourly job to force tokens expiry.
>> 
>> Nevertheless, after about 11 hours the stuck happened again.
>> 
>> Anybody else experiencing familiar issue?
>> 

> I haven't seen this problem since turning autoexpire off.

> Sounds like a mysql problem (either getting to or w/in). Any indications on
> the mysql side?
Logs show that this is not a mysql problem. We've got here HA cluster
for mysql with Hitachi TagmaStore AMS200 as a storage for them, so
there should be no problems with mysql at all in any case. Problems
are SA related, looks like a some kind of bug in it, as a simple restart
of spamd fixes the things for a while.

> P.S. The new qmlog has grep built in. Perhaps I should've made it egrep?
Still using older QMTP RPM, and I think that there's no need for qmlog
to gain excess functionality. It's against The Unix Way (TM), and it
will be always easier for experienced sysadm to pipe to a grep/egrep,
instead of trying to remember correct opts for every utility he or she
uses.

-- 
Best regards,
 Alexey Loukianov                          mailto:[EMAIL PROTECTED]
 System Engineer,
 IT Department,
 Lavtech Corp


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