I don't think that you need to mcastBindAddr in the <Cluster> tag. The
default <Cluster> tag doesn't have an mcastBindAddr attribute defined.
You can try setting the tcpListenAddr to the IP address of each machine.
-----Original Message-----
From: Niki Diulgerov [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 15, 2007 12:19 PM
To: Tomcat Users List
Subject: Re: clustering mode in apache tomcat 5.5.25
Thank you very much for the help.
Indeed I figured out that
<distributable /> have to be in web.xml
I was not changing multicast address... it is 228.0.0.4
But I changed multicast bind address
on the first machine which have IP address 192.9.202.166 I set
mcastBindAddress="192.9.202.166"
and on the second with IP 192.9.202.21 I set
mcastBindAddress="192.9.202.21"
So the idea was the broadcast address to bind to the appropriate
interface (one of the machines have more than one )
Both machines and their interfaces are set with multicasting
eth0 Link encap:Ethernet HWaddr 00:03:25:2B:05:8C
inet addr:192.9.202.21 Bcast:192.9.202.255
Mask:255.255.255.0
inet6 addr: fe80::203:25ff:fe2b:58c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:66929626 errors:0 dropped:48 overruns:0 frame:0
TX packets:70048545 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:1201688058 (1.1 GiB) TX bytes:3733631693 (3.4 GiB)
Base address:0x5000 Memory:dd480000-dd4a0000
I dont know why to add route to
239.255.0.1
as it doesnt belong to any of my networks
Please help
Best regards,
Nikolay Diulgerov
Network Administrator
E-mail: [EMAIL PROTECTED]
Telephone : +33 4 89 87 77 77
Fax : +33 4 89 87 77 00
Web: http://www.codix-france.com
Clifford Bryant wrote:
You should be able to just uncomment the <Cluster> tag in the Tomcat
/conf/server.xml file. Then, open the ports, and do 1-3 below, and
set
up multicast. You need to enable multicast on your network. You need
to do 1-3 on both machines.
Set the multicast address back to what it was, 228.0.0.4. The
multicast
address is needed for the multiple machines to communicate and share
session information.
The multicast address is a broadcast address. It is a single address.
All servers on the network will listen for it. You put the
<distributable/> tag in the web.xml of the applications that want to
be
clustered.
Run these commands as root.
1. You will need to open the multicast port 45564 for UDP, and the TCP
listen port 4001 for TCP.
2. The network interfaces should be enabled for multicast.
ifconfig eth0 multicast
3. Create a multicast route for each network interface.
route add -host 239.255.0.1 dev eth0
You can check if multicast is working with,
ping 239.255.0.1
You should get multiple responses back.
-----Original Message-----
From: Niki Diulgerov [mailto:[EMAIL PROTECTED]
Sent: Thursday, November 15, 2007 11:08 AM
To: users@tomcat.apache.org
Subject: clustering mode in apache tomcat 5.5.25
Hello friends,
I read a lot in internet, connected to #tomcat irc channel but still
no
help (except one user in irc who told me in this mailing list there
are
very nice people).
So my problem is that I'm trying to use 2 tomcats in clustering mode.
I installed standard tomcat 5.5.25 downloaded from the official site.
The operating systems are RHEL4 and Open SuSE10.2
I have setenv.sh
JAVA_OPTS="-server -Xms512m -Xmx1024m -XX:PermSize=512m
-XX:MaxPermSize=1024m -XX:+HeapDumpOnOutOfMemoryError"
CATALINA_OPTS="-Dlogs.root=/extranet/logs
-Dwas.install.root=/extranet"
JAVA_HOME=/jdk1.5.0_13
ENCODING=utf-8
Java version jdk1.5.0_13 (I tried with java 1.4 and the compat package
for tomcat 5.5.25 but still the same)
I changed only server.xml file on both machines. Here is how it looks
like:
<Server port="8011"
shutdown="SHUTDOWN" >
<GlobalNamingResources>
<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and
saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
</GlobalNamingResources>
<Service name="Catalina">
<Connector port="9012"
protocol="AJP/1.3" />
<Connector port="9013"
maxThreads="100"
minSpareThreads="4"
maxSpareThreads="4"
/>
<Engine name="Catalina"
defaultHost="localhost"
jvmRoute="node01">
<Realm
className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase" />
<Host name="localhost"
appBase="webapps">
<Cluster
className="org.apache.catalina.cluster.tcp.SimpleTcpCluster"
doClusterLog="true"
clusterLogName="clusterlog"
manager.className="org.apache.catalina.cluster.session.DeltaManager"
manager.expireSessionsOnShutdown="false"
manager.notifyListenersOnReplication="false"
manager.notifySessionListenersOnReplication="false"
manager.sendAllSessions="false"
manager.sendAllSessionsSize="500"
manager.sendAllSessionsWaitTime="20">
<Membership
className="org.apache.catalina.cluster.mcast.McastService"
mcastAddr="228.0.0.4"
mcastBindAddress="127.0.0.1"
mcastClusterDomain="d10"
mcastPort="45564"
mcastFrequency="1000"
mcastDropTime="30000"
recoveryCounter="10"
recoveryEnabled="true"
recoverySleepTime="5000"/>
<Receiver
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="auto"
tcpListenPort="9015"
tcpSelectorTimeout="100"
tcpThreadCount="6"/>
<Sender
className="org.apache.catalina.cluster.tcp.ReplicationTransmitter"
replicationMode="fastasyncqueue"
recoverTimeout="5000"
recoverCounter="6"
doTransmitterProcessingStats="true"
doProcessingStats="true"
doWaitAckStats="true"
queueTimeWait="true"
queueDoStats="true"
queueCheckLock="true"
ackTimeout="15000"
waitForAck="true"
keepAliveTimeout="80000"
keepAliveMaxRequestCount="-1"/>
<Valve
className="org.apache.catalina.cluster.tcp.ReplicationValve"
filter=".*\.gif;.*\.js;.*\.css;.*\.png;.*\.jpeg;.*\.jpg;.*\.htm;.*\.html
;.*\.txt;"
primaryIndicator="true" />
<Valve
className="org.apache.catalina.cluster.session.JvmRouteBinderValve"
enabled="true" />
<ClusterListener
className="org.apache.catalina.cluster.session.ClusterSessionListener"
/>
<ClusterListener
className="org.apache.catalina.cluster.session.JvmRouteSessionIDBinderLi
stener"
/>
<Deployer
className="org.apache.catalina.cluster.deploy.FarmWarDeployer"
tempDir="${catalina.base}/war-temp"
deployDir="${catalina.base}/war-deploy/"
watchDir="${catalina.base}/war-listen/"
watchEnabled="true"/>
</Cluster>
</Host>
</Engine>
</Service>
</Server>
I changed only mcastBindAddress="127.0.0.1"
on both machines and replaced 127.0.0.1 with the appropriate IP
address
of any of these machines.
everything else was the same. (Here I'm not sure if I should use the
same jvmRoute on both machines)
The problem is that in the catalina.out I have
WARNING: Error receiving mcast package (errorCounter=10). Try
Recovery!
java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive0(Native Method)
at
java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:13
6)
at java.net.DatagramSocket.receive(DatagramSocket.java:712)
at
org.apache.catalina.cluster.mcast.McastServiceImpl.receive(McastServiceI
mpl.java:238)
at
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread.run(Mc
astServiceImpl.java:330)
Nov 15, 2007 5:22:33 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$RecoveryThread run
INFO: Cluster membership, running recovery thread, multicasting is not
functional.
Nov 15, 2007 5:22:33 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$SenderThread run
WARNING: Sender Thread ends with errorCounter=0.
Nov 15, 2007 5:22:34 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread run
WARNING: Receiver Thread ends with errorCounter=1.
Nov 15, 2007 5:22:35 PM
org.apache.catalina.cluster.mcast.McastServiceImpl setupSocket
INFO: Setting multihome multicast interface to:/192.9.202.166
Nov 15, 2007 5:22:35 PM
org.apache.catalina.cluster.mcast.McastServiceImpl setupSocket
INFO: Setting cluster mcast soTimeout to 1000
Nov 15, 2007 5:22:35 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$RecoveryThread run
INFO: Membership recovery was successful.
Nov 15, 2007 5:22:43 PM org.apache.catalina.cluster.deploy.WarWatcher
check
INFO: check cluster wars at /extranet/tomcat/war-listen
Nov 15, 2007 5:22:55 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread run
WARNING: Error receiving mcast package (errorCounter=10). Try
Recovery!
java.net.SocketTimeoutException: Receive timed out
at java.net.PlainDatagramSocketImpl.receive0(Native Method)
at
java.net.PlainDatagramSocketImpl.receive(PlainDatagramSocketImpl.java:13
6)
at java.net.DatagramSocket.receive(DatagramSocket.java:712)
at
org.apache.catalina.cluster.mcast.McastServiceImpl.receive(McastServiceI
mpl.java:238)
at
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread.run(Mc
astServiceImpl.java:330)
Nov 15, 2007 5:22:55 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$RecoveryThread run
INFO: Cluster membership, running recovery thread, multicasting is not
functional.
Nov 15, 2007 5:22:55 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$SenderThread run
WARNING: Sender Thread ends with errorCounter=0.
Nov 15, 2007 5:22:56 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread run
WARNING: Receiver Thread ends with errorCounter=1.
Nov 15, 2007 5:22:57 PM
org.apache.catalina.cluster.mcast.McastServiceImpl setupSocket
INFO: Setting multihome multicast interface to:/192.9.202.166
Nov 15, 2007 5:22:57 PM
org.apache.catalina.cluster.mcast.McastServiceImpl setupSocket
INFO: Setting cluster mcast soTimeout to 1000
Nov 15, 2007 5:22:57 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$RecoveryThread run
INFO: Membership recovery was successful.
Nov 15, 2007 5:23:03 PM org.apache.catalina.cluster.deploy.WarWatcher
check
INFO: check cluster wars at /extranet/tomcat/war-listen
Nov 15, 2007 5:23:17 PM
org.apache.catalina.cluster.mcast.McastServiceImpl$ReceiverThread run
Please help.
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