[Zope] Zope hangs hangs hangs...
Jim Kutter
jim at ebizq.net
Wed Oct 22 15:39:50 EDT 2003
I had the same problems in RH9. After setting my threads to 1, and the
interval check timer to 22 (pystones/250), the problem seemed to go
away.
It's a dedicated development box, so it's not heavily taxed - you may
not be able to get away with the same settings I did...
-jim
-----Original Message-----
From: zope-bounces+jim=ebizq.net at zope.org
[mailto:zope-bounces+jim=ebizq.net at zope.org] On Behalf Of Jakub
Wisniowski
Sent: Wednesday, October 22, 2003 6:44 AM
To: zope at zope.org
Subject: [Zope] Zope hangs hangs hangs...
Hi
I'm experiencing some problems with my Zope. It is Zope 2.6.0
sitting on RedHat and connected to Oracle DB via DCOracle. The problem
is that sometimes Zope hangs.
There are tens of users in my app, and there are also some long
lasting db queries, so I have total number of zope threads set to 15
and zodb cache poool size set to 25. But there is
no rule (I can't find any rule) for hanging like heavy load or sth
- it just happens.
This is pretty mysterious for me, because there is nothing in event
log except a series of conflict
errors, then:
2003-10-21T12:39:18 INFO(0) ZODB conflict error at addr (481 conflicts
since startup at 2003-10-21T02:00:05)
------
2003-10-21T12:39:24 INFO(0) ZODB conflict error at addr2 (482 conflicts
since startup at 2003-10-21T02:00:05)
------
2003-10-21T12:39:26 INFO(0) ZODB conflict error at addr3 (483 conflicts
since startup at 2003-10-21T02:00:05)
------ <-- Zope hanging
here
2003-10-21T12:56:34 INFO(0) Z2 Caught signal SIGTERM <-- restart here
------
2003-10-21T12:56:34 INFO(0) Z2 Closing all open ZODB databases
------
2003-10-21T12:56:34 INFO(0) Z2 Shutting down
and then system start informations.
In z2.log there is also a pause in requests - it looks like:
127.0.0.1 - Anonymous [21/Oct/2003:12:40:35 +0200] "GET /addr
HTTP/1.1" 302 339 "" "Mozilla/4.0 (compatible; MSIE 6.0; Windows 98)"
127.0.0.1 - Anonymous [21/Oct/2003:12:56:40 +0200] "GET /addr
HTTP/1.1" 302 339 "" "Mozilla/4.0 (compatible; MSIE 5.5; Windows 98)"
And most descriptive detailed log:
Start WIn WOut WEnd Tot S OSize Code Act URL
2003-10-21T12:39:42 0 1 0 1 E 21690 200 0 urls
2003-10-21T12:39:42 0 0 0 0 E 282 302 0 ...
2003-10-21T12:39:45 0 0 0 0 E 14318 200 0 ...
2003-10-21T12:39:46 0 2 0 2 E 58170 200 2 ...
2003-10-21T12:39:46 0 5 0 5 E 21743 200 4
2003-10-21T12:39:48 0 NA NA 0 I NA NA 152 urls
2003-10-21T12:39:50 0 1 0 1 E 13904 200 1 ...
2003-10-21T12:39:50 0 13 0 13 E 101528 200 9 ...
2003-10-21T12:39:50 0 13 0 13 E 101528 200 11 ...
2003-10-21T12:39:51 0 1 0 1 E 1790 200 1 ...
2003-10-21T12:39:52 0 0 0 0 E 26499 200 0 ...
2003-10-21T12:39:53 0 0 0 0 E 7728 302 0
2003-10-21T12:39:53 0 1 0 1 E 14049 302 0
2003-10-21T12:39:53 0 4 0 4 E 84388 200 2
2003-10-21T12:39:54 0 1 0 1 E 18137 200 0
2003-10-21T12:39:57 0 1 0 1 E 11716 200 1 urls
2003-10-21T12:39:58 0 1 0 1 E 18322 302 0 ...
2003-10-21T12:39:59 0 3 0 3 E 15407 200 0 ...
2003-10-21T12:40:03 0 1 0 1 E 26706 200 1
2003-10-21T12:40:04 0 NA NA 0 I NA NA 138 urls
2003-10-21T12:40:05 0 NA NA 0 I NA NA 137 ...
2003-10-21T12:40:05 0 1 0 1 E 8084 200 2 ...
2003-10-21T12:40:05 0 2 0 2 E 14568 302 2 ...
2003-10-21T12:40:06 0 NA NA 0 I NA NA 134 ...
2003-10-21T12:40:07 0 NA NA 0 I NA NA 133 ...
2003-10-21T12:40:08 0 NA NA 0 I NA NA 132 ...
2003-10-21T12:40:12 0 NA NA 0 I NA NA 131 ...
2003-10-21T12:40:14 0 NA NA 0 I NA NA 130
2003-10-21T12:40:18 0 NA NA 0 I NA NA 129
2003-10-21T12:40:32 0 NA NA 0 I NA NA 126
2003-10-21T12:40:32 0 NA NA 0 I NA NA 127
2003-10-21T12:40:32 0 NA NA 0 I NA NA 128
2003-10-21T12:40:34 0 1 0 1 E 339 302 0
2003-10-21T12:40:37 0 NA NA 0 I NA NA 124
2003-10-21T12:40:39 0 NA NA 0 I NA NA 123
2003-10-21T12:40:41 0 NA NA 0 I NA NA 122
2003-10-21T12:40:43 0 NA NA 0 I NA NA 121
2003-10-21T12:40:45 0 NA NA 0 I NA NA 119
2003-10-21T12:40:45 0 NA NA 0 I NA NA 120
...
...
...
2003-10-21T12:55:25 0 NA NA 0 I NA NA 4 urls
2003-10-21T12:55:49 0 NA NA 0 I NA NA 3 ...
2003-10-21T12:55:52 0 NA NA 0 I NA NA 2 ...
2003-10-21T12:56:03 0 NA NA 0 I NA NA 1 ...
2003-10-21T12:56:09 0 NA NA 0 I NA NA 0 ...
2003-10-21T12:56:37 NA NA NA 0 U NA NA 0 System
startup
2003-10-21T12:56:40 0 0 0 0 E 339 302 0 urls
2003-10-21T12:56:41 0 0 0 0 E 873 302 1 ...
2003-10-21T12:56:41 0 0 0 0 E 339 302 0 ...
2003-10-21T12:56:41 0 0 0 0 E 873 302 0 ...
2003-10-21T12:56:41 0 0 0 0 E 1672 500 0 ...
What can I read from these? Is any of these logs descriptive enough to
say what is wrong with my Zope? How to do more investigation?
I've got some more Zope instances that works perfectly stable in
similar configuration but not with Oracle database, maybe this is a
source of these hangs?
Thanks
--
Jakub Wisniowski
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