On Tue, May 11, 2004 at 12:26:47PM +0200, Beat De Martin wrote:
: I'm using Tomcat 3.3.1, Apache 1.3.27 and mod_jk 1.2.4.
^^^^^
Do you have a test system on which you can try out Tomcat 4.1 or 5?
Even if you've found a legit Tomcat 3.x bug, IIRC that product is not
under active development...
: Every two days my Tomcat hungs and I have to restart it.
: Before Tomcat hungs I can see the following in mod_jk.log:
: ERROR: can't receive the response message from tomcat, network problems or
: tomcat is down. err=-1
: [jk_ajp_common.c (1137)]: Error reading reply from tomcat. Tomcat is down
: or network problems.
: [jk_ajp_common.c (1290)]: ERROR: Receiving from tomcat failed, recoverable
: operation. err=0
: [jk_ajp_common.c (1309)]: sending request to tomcat failed in send loop.
: err=0
Before you restart, what sort of forensics do you do? e.g.
- check whether the Tomcat process really is unavailable
- check network connectivity between Apache/Tomcat
- check limits on the Tomcat and Apache processes, such as number
of open sockets
etc., etc., etc.
-QM
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