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From: Alexander Diedler <adiedler@tecracer.de>
To: Tomcat Users List <users@tomcat.apache.org>
Date: Mon, 1 Feb 2010 08:40:25 +0100
Subject: AW: Tomcat Cluster 6.x and HTTP/1.1 503 Service Temporarily
 Unavailable
Thread-Topic: Tomcat Cluster 6.x and HTTP/1.1 503 Service Temporarily
 Unavailable
Thread-Index: AcqinqPdY+KVrfjvS5+s6rjWoxJpcwAcp3xg
Message-ID: <ECBE70BA1D83964490525E064C9F96F941B6C96C0C@SBS.tecracer.local>
References: <ECBE70BA1D83964490525E064C9F96F941B6CE0B5D@SBS.tecracer.local>
 <4B65C3F6.7050007@apache.org>
In-Reply-To: <4B65C3F6.7050007@apache.org>
Accept-Language: de-DE
Content-Language: de-DE
acceptlanguage: de-DE
Content-Type: text/plain; charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
MIME-Version: 1.0

Hello,
Server Version: Apache/2.2.14 (Win32) mod_jk/1.2.28
Server Built: Sep 28 2009 22:41:08
Server loaded APR Version: 1.3.9
Compiled with APR Version: 1.3.9
Server loaded APU Version: 1.3.9
Compiled with APU Version: 1.3.9
Module Magic Number: 20051115:23
Hostname/port: XXX.XXX.XXX.XXX:80
Timeouts: connection: 300    keep-alive: 5
MPM Name: WinNT
MPM Information: Max Daemons: 64 Threaded: yes Forked: no
Server Architecture: 32-bit
Server Root: D:/tecracer/software/Apache
Config File: D:/tecracer/software/Apache/conf/httpd.conf
Server Built With:  -D APACHE_MPM_DIR=3D"server/mpm/winnt"
 -D APR_HAS_SENDFILE
 -D APR_HAS_MMAP
 -D APR_HAS_OTHER_CHILD
 -D AP_HAVE_RELIABLE_PIPED_LOGS
 -D HTTPD_ROOT=3D"/apache"
 -D SUEXEC_BIN=3D"/apache/bin/suexec"
 -D DEFAULT_ERRORLOG=3D"logs/error.log"
 -D AP_TYPES_CONFIG_FILE=3D"conf/mime.types"
 -D SERVER_CONFIG_FILE=3D"conf/httpd.conf"


Server Version: Apache/2.2.14 (Win32) mod_jk/1.2.28=20
Server Built: Sep 28 2009 22:41:08=20

---------------------------------------------------------------------------=
-----

Current Time: Monday, 01-Feb-2010 08:38:14 W. Europe Standard Time=20
Restart Time: Monday, 01-Feb-2010 04:58:09 W. Europe Standard Time=20
Parent Server Generation: 0=20
Server uptime: 3 hours 40 minutes 5 seconds=20
Total accesses: 28126 - Total Traffic: 340.1 MB=20
2.13 requests/sec - 26.4 kB/second - 12.4 kB/request=20
44 requests currently being processed, 1656 idle workers


Listing Load Balancing Worker (1 Worker) [Hide]

---------------------------------------------------------------------------=
-----

[S|E|R]  Worker Status for loadbalancer
Type Sticky Sessions Force Sticky Sessions Retries LB Method Locking Recove=
r Wait Time Error Escalation Time Max Reply Timeouts [Hide]=20
lb True False 3 Busyness Optimistic 60 30 0 =20

Good Degraded Bad/Stopped Busy Max Busy Next Maintenance Last Reset [Hide]=
=20
2 0 0 0 70 74/196 13277 =20

Balancer Members [Hide]
Name Type Hostname Address:Port Connection Pool Timeout Connect Timeout Pre=
post Timeout Reply Timeout Retries Recovery Options Max Packet Size [Hide]=
=20
worker1 ajp13 k0.domain.local xxx.xxx.x.78:8010 0 0 0 0 2 0 8192 =20
worker2 ajp13 k1.domain.local xxx.xxx.x.77:8010 0 0 0 0 2 0 8192 =20

  Name Act State D F M V Acc Err CE RE Wr Rd Busy Max Route RR Cd Rs LR LE=
=20
[S|E|R]  worker1 ACT OK 0 100 1 0 425 (1/sec) 0 0 0 264K (908 /sec) 1.6M (5=
.3K/sec) 0 5 worker1     0/0 298  =20
[S|E|R]  worker2 ACT OK 0 100 1 0 2257 (0/sec) 112 24 0 1.3M (104 /sec) 17M=
 (1.3K/sec) 0 11 worker2     0/0 13277  =20


Greetings
Alexander Diedler


-----Urspr=FCngliche Nachricht-----
Von: Mark Thomas [mailto:markt@apache.org]=20
Gesendet: Sonntag, 31. Januar 2010 18:55
An: Tomcat Users List
Betreff: Re: Tomcat Cluster 6.x and HTTP/1.1 503 Service Temporarily Unavai=
lable

On 31/01/2010 17:50, Alexander Diedler wrote:
> Hello,
> We spend a lot of time to investigate the mistake, but I would not be fou=
nd by us. We have two Virtual Machines with Windows 2003 R2 Standard Editio=
n and on every node there is a Apache 2.2.14 and Tomcat 6.0.20 (and tcnativ=
e installed) with mod_jk 1.2.28 (all 32 Bit) installed.
> After a period (hours up to a day) we receive on every application a 503 =
error through the Webserver.
> The Apache seems to work fine, jkmanager, htdocs, server-info and server-=
status can be opened and the apps seems can be accessed by HTTP Connector P=
ort 8080.
>=20
> Is there are any idea, what is the problem in this case? Any suggestions,=
 what we can improve to avoid this errors.

Hard to tell with out any configuration info. At a guess, more httpd
threads than AJP threads and unused connections not being closed quickly
enough. Try fixing your timeouts or use
JkOptions     +DisableReuse

Mark


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