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Clustering with Alfresco Community 5.0.d

Question asked by prachi379 on Dec 7, 2015
Latest reply on Feb 25, 2016 by sergiovallarta

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Since clustering is not supported for alfresco community, we have tried to implement our own clustering solution. We have 2 alfresco servers, both have community 5.0.a installed and a load balancer distributes the traffic between these two servers. Both the servers speak to the same database and share a single contentshare/contentshare.deleted repository and this system has been in use for over a year. Now I am trying to replicate the cache on the cluster and I have read that alfresco uses ehcache. So I have created /opt/alfresco-5.0.d/tomcat/shared/classes/alfresco/extension/ehcache-custom.xml and followed steps from this page - http://docs.alfresco.com/4.0/tasks/jgroups-repo.html

My alfresco-global.properties on 'server1' has the below lines -
# Ehcache Settings
alfresco.cluster.name=cluster1
index.recovery.mode = AUTO
alfresco.ehcache.rmi.hostname=server2@domain
alfresco.rmi.services.external.host=server2@domain
alfresco.ehcache.rmi.port=40001
alfresco.ehcache.rmi.remoteObjectPort=45001

and on 'server2' -
# Ehcache Settings
alfresco.cluster.name=cluster1
index.recovery.mode = AUTO
alfresco.ehcache.rmi.hostname=server1@domain
alfresco.rmi.services.external.host=server1@domain
alfresco.ehcache.rmi.port=40001
alfresco.ehcache.rmi.remoteObjectPort=45001

I have also changed the cacheManagerPeerProviderFactory definition to below -


   <cacheManagerPeerProviderFactory
            class="net.sf.ehcache.distribution.RMICacheManagerPeerProviderFactory"
            properties="peerDiscovery=automatic,
                        multicastGroupAddress=230.0.0.1,
                        multicastGroupPort=4447"/>

but this is not working. Is it possible to get the ehcache replication working out of the box and if yes, how can I achieve this? If this cannot work without JGroups, is it possible to do it some other way?

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mrogers Dec 7, 2015 10:47 PM
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It's going to be **possible** to use jgroups and ehcache. After all Alfresco Enterprise once used to use those technologies.

However it was never very easy and that's one of the reasons alfresco replaced the clustering code. You can't just add the obsolete configuration to Alfresco Community and expect it to work.
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sergiovallarta Feb 12, 2016 12:24 AM
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Hello.

One question, how configuring the content repository in the two alfresco ??

I have two alfresco community connect to one database, one alfresco startup is no have problem, but, in the second alfresco, the log say "ONTENT INTEGRITY ERROR: System content not found in content store.
16:46:44,866 ERROR [org.alfresco.repo.admin.ConfigurationChecker] [localhost-startStop-1] Ensure that the 'dir.root' property is pointing to the correct data location.
16:46:44,882 ERROR [org.springframework.web.context.ContextLoader] [localhost-startStop-1] Context initialization failed
org.alfresco.error.AlfrescoRuntimeException: 01110001 Ensure that the 'dir.root' property is pointing to the correct data location."

Im add index.mode.recovery=FULL, and try AUTO but not function, Alfresco Share Startup but not logging, send autentication error, how if problem whit database.

After this problem, im started whith the jgruops, anything know, I say to you
Thanks !!
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mrogers Feb 12, 2016 10:02 AM
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You also need to share the content store as well as the database.
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- sergiovallarta @ mrogers on Feb 23, 2016 10:50 PM
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  Hello.
  
  What the correct format for share repository ?? My alresco.global.properties configuration is :
  
  dir.root=//192.168.1.188/C:/Alfresco/alf_data
  dir.contentstore=//192.168.1.188/C:/Alfresco/alf_data/contentstore
  dir.contentstore.deleted=//192.168.1.188/C:/Alfresco/alf_data/contentstore.deleted
  
  some triying
  
  dir.root=\\192.168.1.188\C:\Alfresco\alf_data
  dir.contentstore=\\192.168.1.188\C:\Alfresco\alf_data\contentstore
  dir.contentstore.deleted=\\192.168.1.188\C:\Alfresco\alf_data\contentstore.deleted
  
  but not function,
  
  other configuration for the cluster add in my alfresco.global.properties
  
  index.recovery.mode=FULL
  alfresco.cluster.enabled=true
  alfresco.cluster.name=mycluster
  alfresco.hazelcast.password=alfrescocluster
  alfresco.hazelcast.tcp.config=192.168.1.120,192.168.1.188;
  alfresco.hazelcast.specify.interface=true
  alfresco.hazelcast.bind.interface=192.168.1.120
  alfresco.ehcache.rmi.hostname=192.168.1.120
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mrogers Feb 24, 2016 12:15 PM
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dir.root=C:/Alfresco/alf_data

The dir.root is a path not a UNC.

On windows you would map the drive prior to starting alfresco.
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- sergiovallarta @ mrogers on Feb 24, 2016 7:15 PM
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  I read and documenting that this configuration is modified on the file repository.properties but im not find this file in the Community version, understand whait parameters modified is in alfresco.global.properties
  
  I understand the function of the parameters that you mention but not find the correct parameters for the mapping (or if is requered other configuration for the Windows, outside the shared folder)
  
  You know what parameters do mapping or have any link in where explain this configuration,this outside the alfresco wiki and docs thiw where im read actually
  
  Saludos
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mrogers Feb 24, 2016 8:31 PM
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You have the correct file in your posting above. put your configuration in use alfresco-global.properties
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- sergiovallarta @ mrogers on Feb 24, 2016 10:29 PM
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  My alfresco.global.properties is :
  
  ###############################
  ## Common Alfresco Properties #
  ###############################
  
  dir.root=C:/Alfresco/alf_data
  
  alfresco.context=alfresco
  alfresco.host=127.0.0.1
  alfresco.port=8080
  alfresco.protocol=http
  
  share.context=share
  share.host=127.0.0.1
  share.port=8080
  share.protocol=http
  
  ### database connection properties ###
  #db.driver=org.postgresql.Driver
  #db.username=alfresco
  #db.password=*****
  #db.name=alfresco
  #db.url=jdbc:postgresql://localhost:5432/${db.name}
  
  db.driver=org.postgresql.Driver
  db.username=alfresco
  db.password=alfresco
  db.name=alfresco
  db.url=jdbc:postgresql://192.168.1.232:5432/alfresco
  
  # The server mode. Set value here
  # UNKNOWN | TEST | BACKUP | PRODUCTION
  system.serverMode=UNKNOWN
  
  ### FTP Server Configuration ###
  ftp.enabled=true
  ftp.port=21
  
  ### RMI service ports ###
  alfresco.rmi.services.port=50500
  avm.rmi.service.port=0
  avmsync.rmi.service.port=0
  attribute.rmi.service.port=0
  authentication.rmi.service.port=0
  repo.rmi.service.port=0
  action.rmi.service.port=0
  deployment.rmi.service.port=0
  
  ### External executable locations ###
  ooo.exe=C:/Alfresco/libreoffice/App/libreoffice/program/soffice.exe
  ooo.enabled=true
  ooo.port=8100
  img.root=C:\\Alfresco\\imagemagick
  img.coders=${img.root}\\modules\\coders
  img.config=${img.root}\\config
  img.gslib=${img.root}\\lib
  img.exe=${img.root}\\convert.exe
  swf.exe=C:/Alfresco/swftools/pdf2swf.exe
  swf.languagedir=C:/Alfresco/swftools/japanese
  
  jodconverter.enabled=false
  jodconverter.officeHome=C:/Alfresco/libreoffice/App/libreoffice
  jodconverter.portNumbers=8100
  
  ### Initial admin password ###
  alfresco_user_store.adminpassword=209c6174da490caeb422f3fa5a7ae634
  
  ### E-mail site invitation setting ###
  notification.email.siteinvite=false
  
  ### License location ###
  dir.license.external=C:/Alfresco
  
  ### Solr indexing ###
  index.subsystem.name=solr
  dir.keystore=${dir.root}/keystore
  solr.port.ssl=8443
  
  ### BPM Engine ###
  system.workflow.engine.jbpm.enabled=false
  
  ### Allow extended ResultSet processing
  security.anyDenyDenies=false
  
  index.recovery.mode=AUTO
  alfresco.cluster.name=mycluster
  alfresco.hazelcast.password=alfrescocluster
  alfresco.hazelcast.tcp.config=192.168.1.188,192.168.1.120;
  alfresco.hazelcast.specify.interface=true
  alfresco.hazelcast.bind.interface=192.168.1.188
  alfresco.ehcache.rmi.hostname=192.168.1.188
  
  Saludos !!
  
  Note. In my log, i can see the conecction database is correct, but,
  immediately:
  
  Connected to database PostgreSQL version 9.3.5
  13:19:38,151 ERROR [org.springframework.web.context.ContextLoader] [localhost-startStop-1] Context initialization failed
  org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authorityBridgeTableCache' defined in class path resource [alfresco/cache-context.xml]: Cannot resolve reference to bean 'authorityBridgeDAO' while setting bean property 'authorityBridgeDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authorityBridgeDAO' defined in class path resource [alfresco/authority-services-context.xml]: Cannot resolve reference to bean 'nodeDAO' while setting bean property 'nodeDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nodeDAO': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nodeDAO.org.hibernate.dialect.Dialect' defined in class path resource [alfresco/dao/dao-context.xml]: Cannot resolve reference to bean 'contentDataDAO' while setting bean property 'contentDataDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contentDataDAO' defined in class path resource [alfresco/dao/dao-context.xml]: Cannot resolve reference to bean 'eagerContentStoreCleaner' while setting bean property 'contentStoreCleaner'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'eagerContentStoreCleaner' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentBackupListeners' while setting bean property 'listeners'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentBackupListeners' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentBackupListener' while setting constructor argument with key [0]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentBackupListener' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentStore' while setting bean property 'store'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentStore' defined in class path resource [alfresco/content-services-context.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.alfresco.repo.content.filestore.FileContentStore]: Constructor threw exception; nested exception is org.alfresco.service.cmr.repository.ContentIOException: 01240000 Failed to create store root: \\192.168.1.188\C:\Alfresco\alf_data\contentstore.deleted
     at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveReference(BeanDefinitionValueResolver.java:328)
     at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:106)
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1325)
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1086)
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:517)
     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:456)
     at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:291)
     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222)
     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:288)
     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:190)
     at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:580)
     at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:895)
     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:425)
     at org.springframework.web.context.ContextLoader.createWebApplicationContext(ContextLoader.java:276)
     at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:197)
     at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:47)
     at org.alfresco.web.app.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:63)
     at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4973)
     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5467)
     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:150)
     at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:901)
     at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:877)
     at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:632)
     at org.apache.catalina.startup.HostConfig.deployWAR(HostConfig.java:1073)
     at org.apache.catalina.startup.HostConfig$DeployWar.run(HostConfig.java:1857)
     at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
     at java.util.concurrent.FutureTask.run(FutureTask.java:262)
     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
     at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
     at java.lang.Thread.run(Thread.java:745)
  Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'authorityBridgeDAO' defined in class path resource [alfresco/authority-services-context.xml]: Cannot resolve reference to bean 'nodeDAO' while setting bean property 'nodeDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nodeDAO': FactoryBean threw exception on object creation; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'nodeDAO.org.hibernate.dialect.Dialect' defined in class path resource [alfresco/dao/dao-context.xml]: Cannot resolve reference to bean 'contentDataDAO' while setting bean property 'contentDataDAO'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'contentDataDAO' defined in class path resource [alfresco/dao/dao-context.xml]: Cannot resolve reference to bean 'eagerContentStoreCleaner' while setting bean property 'contentStoreCleaner'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'eagerContentStoreCleaner' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentBackupListeners' while setting bean property 'listeners'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentBackupListeners' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentBackupListener' while setting constructor argument with key [0]; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentBackupListener' defined in class path resource [alfresco/content-services-context.xml]: Cannot resolve reference to bean 'deletedContentStore' while setting bean property 'store'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'deletedContentStore' defined in class path resource [alfresco/content-services-context.xml]: Instantiation of bean failed; nested exception is org.springframework.beans.BeanInstantiationException: Could not instantiate bean class [org.alfresco.repo.content.filestore.FileContentStore]: Constructor threw exception; nested exception is org.alfresco.service.cmr.repository.ContentIOException: 01240000 Failed to create store root: \\192.168.1.188\C:\Alfresco\alf_data\contentstore.deleted
  
  Saludos !!
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mrogers Feb 25, 2016 10:28 AM
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Well, where does \\192.168.1.188\ come from?

I suspect you have changed something you have not described above.
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- sergiovallarta @ mrogers on Feb 25, 2016 3:30 PM
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  The paramether dir.root its point other server whit ip is 192.168.1.188, in this other server is where have my repository, this other instance Alfresco this function.
  
  In summary
  I have two instances Alfresco Community point One database in Postgres, my paramether dir.root in two instances must point to the same filesystem for shared the repository.
  
  Saludos !
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