Load Balancing, Clustering, High Availability in Community

khinendra — Fri, 08 Jan 2010 10:27:52 GMT

I just want to know that Load Balancing, Clustering and High Availability are availeble in Alfresco Community or it is limited up to Enterprise Edition.Also please tell me the steps.Thanks

Re: Load Balancing, Clustering, High Availability in Community

mrogers — Sun, 10 Jan 2010 22:36:46 GMT

Yes you can (I think :mrgreen: ) use clustering on the Community versions.

Re: Load Balancing, Clustering, High Availability in Community

khinendra — Mon, 11 Jan 2010 05:26:50 GMT

Hi mrogers,

Can you please tell me the steps and files to be configured for clustering.

Thanks

Re: Load Balancing, Clustering, High Availability in Community

khinendra — Thu, 21 Jan 2010 10:59:59 GMT

Hi,

I am able to share database and contentstore of alfresco among three alfresco share
I installed alfresco enterprise on three diffrenet machines, and changed configuration for all three custom-repository.properties files:

dir.root= shared location/alf_data
dir.indexes=shared location/alf_data/lucene-indexes

db.url=jdbc:mysql://coomonip:3306/alfrescoenp

till here is fine.

Now I want to access all the server using a single ip. Information given in link http://wiki.alfresco.com/wiki/High_Availability_Configuration_V1.4_to_V2.1#Version_1.4.5.2C_2.1.1_and_later is confusing as I am not able to know that where to mention ip of all machine, how to create primary and secondary hosts?

Please help

Re: Load Balancing, Clustering, High Availability in Community

sameer1sharma — Thu, 10 Feb 2011 11:58:58 GMT

Hi,
    I'm trying to do load balancing between two alfresco server. But I'm getting below error.
    When both alfresco server and Apache HTTP server is up; and uploads content with alfresco web service client then in alfresco log file below error comes and the content is not uploaded in any alfresco server.
I'm using web services to upload content in alfresco.
With one alfresco with Apache HTTP server is working fine means content uploads in alfresco. But when both server is up and running then in the case I'm getting the error.

Error:
16:18:58,536 DEBUG [org.apache.axis.EXCEPTIONS] AxisFault:
AxisFault
faultCode: {http://schemas.xmlsoap.org/soap/envelope/}Server.generalException
faultSubcode:
faultString: WSDoAllReceiver: security processing failed; nested exception is:
   org.apache.ws.security.WSSecurityException: The security token could not be authenticated or authorized
faultActor:
faultNode:
faultDetail:
   {http://xml.apache.org/axis/}hostname:BVALF.LB77

WSDoAllReceiver: security processing failed; nested exception is:
   org.apache.ws.security.WSSecurityException: The security token could not be authenticated or authorized
   at org.apache.ws.axis.security.WSDoAllReceiver.invoke(WSDoAllReceiver.java:163)
   at org.apache.axis.strategies.InvocationStrategy.visit(InvocationStrategy.java:32)

Prerequisite:
                  Two Instance of alfresco server (Both are in separate server)
                   Apache HTTP Server
                   Mod JK Tomcat Connector

I've also done clustering and failover, both are working fine as of now, only issue is with load balancing.
Below are details:
worker.properties file

workers.tomcat_home=/apps/Alfresco
workers.java_home=/usr/java/jdk1.5.0_15
ps=/

worker.list=worker1,worker2,loadbalancer,jkstatus

#worker worker1
worker.worker1.host=10.102.150.77
worker.worker1.port=8009
worker.worker1.type=ajp13
worker.worker1.lbfactor=1

#worker worker2
worker.worker2.host=10.102.150.57
worker.worker2.port=8009
worker.worker2.type=ajp13
worker.worker2.lbfactor=1

#worker Load balancing
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=worker1,worker2
worker.loadbalancer.sticky_session=1

#JKSTATUS
worker.jkstatus.type=status

httpd.conf

LoadModule jk_module modules/mod_jk-1.2.31-httpd-2.2.x.so
JkworkersFile conf/workers.properties

<VirtualHost 10.102.150.77:8021>
   ServerName BVALF.LB77
   JkLogFile logs/mod_jk.log
   JkMount /jkstatus/* jkstatus
   #JkMount /* loadbalancer
   JkMount /alfresco loadbalancer
   JkMount /alfresco/* loadbalancer
   #CertificatePath /etc/pki/tls/certs/
   JkLogLevel debug
   #JkStripSession On
</VirtualHost>

Server.xml changes in both alfresco server.

<Connector port="8010" protocol="HTTP/1.1" URIEncoding="UTF-8"
               connectionTimeout="20000"
               redirectPort="8443" />

<Connector port="8009" protocol="AJP/1.3" redirectPort="8443" enableLookups="true" minProcessors="5" maxProcessors="75" minSpareThreads="200" maxThreads="1000" />

<Engine name="Catalina" defaultHost="BVALF.LB77" jvmRoute='worker1'>

<Host name="BVALF.LB77" appBase="webapps"
            unpackWARs="true" autoDeploy="true"
            xmlValidation="false" xmlNamespaceAware="false">

Same has done for second server.

Please resolve my issue. I'm struggling like anything.

Sameer Sharma

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Load Balancing, Clustering, High Availability in Community

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