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From karthikn <karthik.nanjang...@xius-bcgi.com>
Subject Re: TOMCAT CLUSTERING HOWTO
Date Mon, 05 May 2008 14:06:50 GMT
Hi

How to test TOMCAT CLUSTERING with out Load balancer

As Per the Tomcat 5.5.23 Cluster HowTo Documents

I have only tried to Cluster 2 TOMCATS on SAME Machine , Sharing same JVM.

but not able to test the clustering


Am i on doing some thing wrong in here.....?




with regards
Karthik









Landon Fabbricino wrote:
> 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 <karthik.nanjangude@xius-bcgi.com> 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 <karthik.nanjangude@xius-bcgi.com> 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
>>>> lfabbric@agrium.com
>>>>
>>>>
>>>>
>>>>
>>>>         
>>>>>>> karthikn <karthik.nanjangude@xius-bcgi.com> 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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>>>>         
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We encourage and promote the use of safe E-Mail management practices and recommend you check
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>>     
>
>
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