On 06.08.2012 23:39, Yasser wrote:
I am using Tomcat 7.0.29 fronted with Apache 2.2.22 modproxy.
Configured Ajp as the protocol in httpd.conf and AjpNioProtocol in
server.xml.
After the server starts, the logs are filled with the following message:
*Severe: Invalid message received with signature 20599
com.apache.coyote.ajp.AjpMessage processHeader*
It could be anything trying to talk to your AJP port. 20599 should mean,
that the first two bytes of the package are P (=80) and w (=119),
because 80*256 + 119 = 20599.
It seem syou need to sniff your AJP port and see, from which system the
packets come. You could also check
netstat -an
for connections to your AJP port and check whether there are connections
coming from some unexpected system. Sniffing would be more reliable though.
There are no requests sent to the web or tomcat server and it still throws
that error at an interval of 20 seconds. Access logs in tomcat and apache
show that no request is coming in. What is causing the invalid message
error ?
If even the first packet doesn't make sense, then there will be no
access log entry.
Here is the configuration :
httpd.conf
ProxyPass /wl http:// ip : port /wl
ProxyPassReverse /wl http:// ip : port /wl
server.xml
<Connector port="port" protocol="org.apache.coyote.ajp.AjpNioProtocol"
connectionTimeout="20000" acceptorThreadCount="2" maxThreads="600"
redirectPort="8443" />
Regards,
Rainer
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