Hi,
I want to monitore and manage my tomcat instance using
JMX. I use tomcat-5.4.4 and a JDK-1.5 under suse
linux.
I do the actions specified in the official
documentation (Monitoning and managing tomcat).
~/bin/startup.sd
export CATALINA_OPTS="-Dcom.sun.management.jmxremote
\
-Dcom.sun.management.jmxremote.port=8789 \
-Dcom.sun.management.jmxremote.ssl=false \
-Dcom.sun.management.jmxremote.authenticate=false"
~/conf/server.xml
<Connector port="8790"
handler.list="mx"
mx.enabled="true"
mx.httpHost="Linux2"
mx.httpPort="8789"
protocol="AJP/1.3" />
I don't use passwords, I am just testing the JMX
funcionality. In a near future, I will activate
passwords with a better security.
When I start tomcat, the JMX service is activated. I
can see the ports related to JMX in the netstat
output.
Linux2:/home/ctomcat # netstat -nap | grep tcp
tcp 0 0 0.0.0.0:111 0.0.0.0:*
LISTEN 760/
tcp 0 0 0.0.0.0:6000 0.0.0.0:*
LISTEN 1689/X
tcp 0 0 127.0.0.1:25 0.0.0.0:*
LISTEN 1133/
tcp 0 0 127.0.0.1:8005 :::*
LISTEN 6483/java
tcp 0 0 :::33128 :::*
LISTEN 6483/java
tcp 0 0 :::8009 :::*
LISTEN 6483/java
tcp 0 0 :::8080 :::*
LISTEN 6483/java
tcp 0 0 :::8789 :::*
LISTEN 6483/java
-----------------------^^^^ JMX port
tcp 0 0 :::8790 :::*
LISTEN 6483/java
-----------------------^^^^ JMX connector port
tcp 0 0 :::22 :::*
LISTEN 955/sshd
The problem arises when I do a JMX request with any
web broser.
For example:
[EMAIL PROTECTED]:~> wget http://localhost:8790
--14:04:07-- http://localhost:8790/
=> `index.html'
Resolving localhost... done.
Connecting to localhost[::1]:8790... connected.
HTTP request sent, awaiting response...
14:04:07 ERROR -1: No data received.
In the ~/logs/catalina.log appears:
05-ago-2005 14:03:07 org.apache.jk.common.MsgAjp
processHeader
GRAVE: BAD packet signature 18245
05-ago-2005 14:03:07
org.apache.jk.common.ChannelSocket processConnection
GRAVE: Error, processing connection
java.lang.IndexOutOfBoundsException
at
java.io.BufferedInputStream.read(BufferedInputStream.java:306)
at
org.apache.jk.common.ChannelSocket.read(ChannelSocket.java:598)
at
org.apache.jk.common.ChannelSocket.receive(ChannelSocket.java:554)
at
org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:663)
at
org.apache.jk.common.SocketConnection.runIt(ChannelSocket.java:866)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:595)
How can I solve this problem? I must upgrade to a
newer tomcat version. I consult the changelogs between
5.4.4 and the last Tomcat and I don't see any
references about this problem. Is this problem solved
or it is an erroniuos configuration.
Thanks a lot for your attention.
Regards,
Xevi.
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