I honestly have not tried clustering tomcat without Apache before.
Just recently I set up a server farm with apache on one server and tomcat on
two other servers (so 3 physical machines)
Apache contains the "logic" to handle the load balancing between the two
tomcats:
jk.conf
JkWorkersFile conf/workers.properties
JkLogFile logs/jk_conn.log
JkLogLevel error
JkMount /loadbalance-test* loadbalancer
workers.properties
### Load Balancer Instances ####################################
worker.tomcat1.type=ajp13
worker.tomcat1.host=server1.domain.com
worker.tomcat1.port=8009 #AJP Port
worker.tomcat1.lbfactor=1
worker.tomcat4.type=ajp13
worker.tomcat4.host=server2.domain.com
worker.tomcat4.port=8010 #AJP Port
worker.tomcat4.lbfactor=1
### Define Mount Points ####################################
# Load Balance #####################
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=tomcat1,tomcat2
worker.loadbalancer.sticky_session=False
worker.loadbalancer.method=B
### Load Mount Points ####################################
worker.list=loadbalancer
>>> karthikn <[EMAIL PROTECTED]> 4/30/2008 10:57:51 PM >>>
Hi
As Per the Tomcat 5.5.23 Cluster HowTo Documents
I have only tried to Cluster 2 TOMCATS on SAME Machine , Sharing same JVM.
>> Could you provide your apache's worker.properties file?
I have so far not used any APACHE Http Server for Load Balancing
with regards
Karthik
Landon Fabbricino wrote:
> Could you provide your apache's worker.properties file?
>
>
>
>>>> karthikn <[EMAIL PROTECTED]> 4/30/2008 8:05:02 AM >>>
>>>>
> Hi
>
> Any more suggestions ?
>
>
> with regards
> Karthik
>
> karthikn wrote:
>
>> Hi
>>
>> >><distributable/>
>>
>> I have already added the same in my application's web.xml,
>> but still no improvement.
>>
>>
>>
>>
>> with regards
>> Karthik
>>
>>
>>
>> Landon Fabbricino wrote:
>>
>>
>>> If I am not mistaken, you will need to add the following tag to your web.xml
>>>
>>> CATALINA_HOME/webapps/your_app_name/WEB-INF/web.xml
>>> <!-- Required for session-replication in clustering mode -->
>>> <distributable/>
>>>
>>>
>>>
>>> Landon Fabbricino
>>> IT Applications
>>>
>>> Phone: 403.225.7515
>>> Fax: 403.225.7604
>>> [EMAIL PROTECTED]
>>>
>>>
>>>
>>>
>>>>>> karthikn <[EMAIL PROTECTED]> 4/28/2008 11:34:43 PM >>>
>>>>>>
>>>>>>
>>>>>>
>>> Hi
>>>
>>> The Following was done for the Clustering (2 tomcats )
>>>
>>> Values TOMCAT5523_I TOMCAT5523_II
>>>
>>>
>>>
>>> Startup 8081 8082
>>> ShutDown 8007 8008
>>>
>>>
>>>
>>> APJ 8009 8010
>>> TCP Listener 4001 4002
>>> tcpListenAddress auto auto
>>> jvmRoute node01 node02
>>>
>>>
>>>
>>> Delpoyment of a war file on TOMCAT5523_I displays in console as
>>>
>>> >> INFO: Starting clustering manager at /DATAGRID
>>> Apr 29, 2008 10:17:59 AM
>>> org.apache.catalina.cluster.session.DeltaManager getAll
>>> ClusterSessions
>>> WARNING: Manager [/DATAGRID], requesting session state from
>>> org.apache.catalina.
>>> cluster.mcast.McastMember[tcp://10.10.16.63:4002,catalina,10.10.16.63,4002,
>>> aliv
>>> e=17593]. This operation will timeout if no session state has been
>>> received with
>>> in 60 seconds.
>>> Apr 29, 2008 10:18:59 AM
>>> org.apache.catalina.cluster.session.DeltaManager waitFo
>>> rSendAllSessions
>>> SEVERE: Manager [/DATAGRID]: No session state send at 4/29/08 10:17 AM
>>> received,
>>> timing out after 60,109 ms.
>>>
>>>
>>> TOMCAT5523_II displays on console as
>>>
>>> >>INFO: Replication member
>>> added:org.apache.catalina.cluster.mcast.McastMember[tcp
>>> ://10.10.16.63:4001,catalina,10.10.16.63,4001, alive=16]
>>> Apr 29, 2008 10:17:59 AM
>>> org.apache.catalina.cluster.session.ClusterSessionListe
>>> ner messageReceived
>>> SEVERE: Context manager doesn't exist:/DATAGRID
>>>
>>>
>>> Am i missing something while clustering....
>>>
>>> with regards
>>> Karthik
>>>
>>>
>>>
>>> karthikn wrote:
>>>
>>>
>>>
>>>> Hi
>>>>
>>>> I have few Questions which i was not able to get TOMCAT CLUSTERING HOWTO
>>>> and form.
>>>>
>>>>
>>>>
>>>>
>>>> a) Clustering
>>>>
>>>> 1) Do we need to deploy the war files on each individual Tomcat
>>>> when joined the clustering.
>>>> >> "deploy your apps only to one server, and the cluster will
>>>> distribute the deployments across the entire cluster".
>>>>
>>>> This does not seems to work, after following the steps for 2
>>>> Tomcats (or am i missing some thing in here.)
>>>>
>>>> 2) Is this a must do configuration
>>>>
>>>> >>" Make sure that all nodes have the same time and sync with
>>>> NTP service! "
>>>>
>>>> for the clusters to start functioning.
>>>>
>>>>
>>>> b) Load balancing
>>>>
>>>> 1) Using "Using the balancer webapp" , redirects to different
>>>> URL's is done,
>>>> Can we use the same to redirect to the clustered TOMCATs to
>>>> do the load
>>>> balancing internally based on
>>>>
>>>>
>>>> RoundRobinRule,
>>>> RandomRedirectRule
>>>>
>>>>
>>>>
>>>> Any URL or blog (other then "cluster-howto.html")
>>>> which explains the clustering /load balancing in simple steps would be
>>>> of wery much help to us.
>>>>
>>>>
>>>>
>>>> Prerequisite : TOMCAT 5.5.23 (already in production ,we cannot change
>>>> this version) 2 nos
>>>> JSDK : 1.6
>>>> O/s : UNIX 11
>>>>
>>>>
>>>> with regards
>>>> Karthik
>>>>
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>>>>
>>>> .
>>>>
>>>>
>>>>
>>>>
>>>>
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