Hybris version 6.4 Clustering aware issue.

[alimouni]

We encounter an issue every time we add a new model attribute (in clustering mode).

Let me start with the current configuration and an example then will explain in detail the issue.

-Current clustering Configuration :

In mode clustering we have 1 Back-office (BO) server and 5 Front-office servers (FO):

 cluster.id=*clusterId of the server
 cluster.broadcast.method.jgroups.tcp.bind_addr=*ip address of the server
 cluster.broadcast.method.jgroups.tcp.bind_port=9999
 cluster.broadcast.method.jgroups=de.hybris.platform.cluster.jgroups.JGroupsBroadcastMethod
 cluster.broadcast.method.jgroups.channel.name=hybris-broadcast
 cluster.broadcast.method.jgroups.configuration=jgroups-tcp.xml
 clustermode=true
 cluster.nodes.autodiscovery=true
 cluster.node.groups=frontoffice
 task.engine.loadonstartup=false
 

-The example :

 we add a new attribute "testCluster" to the CMSSite Item:
 <itemtype code="CMSSite" autocreate="false" generate="false">
     ...
     ...
     <attribute qualifier="testCluster" type="java.lang.String">
         <persistence type="property" />
         <modifiers optional="true" />
     </attribute>
   

-The Issue:

After performing the update system in the BO server only, we added a new value for e.g: 'testCluster = 5', the value in the front office application does not appear, even in the Backoffice interface of all FO servers remains null. (The check also is done by a flexible search).

we have doubts on the cache eviction, and tried to clear the hybris cache in hac for all servers, but did not work.

All suggestions are welcome.

[Former Member]

Hi,

• We stop the FOs and the BO

• do the sys update on the BO (via ant as it is automated)

• stll the nodes

  ---

If you want zero downtime

link help hybris :

Rolling update

rolling update in a clustered environment

[alimouni]

Hi,

Thank you for replying.

All the Suggested solutions are welcomed, but the current automated scripts do not allow to do so.(we need a platform fix)

Before in the hybris version 5, it was working fine.

[Former Member]

Workaround: Start update system on the 5 Front-office servers (FO) with Localize types mark checked.

[alimouni]

, this is actually what we do and would like to stop doing it 😉 .

Thanks for replying.