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From "Amol D (JIRA)" <j...@apache.org>
Subject [jira] [Closed] (JCS-192) Failover Mechanism not working with Remote Auxillary Cache
Date Mon, 03 Sep 2018 06:57:00 GMT

     [ https://issues.apache.org/jira/browse/JCS-192?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Amol D closed JCS-192.
----------------------

> Failover Mechanism not working with Remote Auxillary Cache
> ----------------------------------------------------------
>
>                 Key: JCS-192
>                 URL: https://issues.apache.org/jira/browse/JCS-192
>             Project: Commons JCS
>          Issue Type: Bug
>          Components: RMI Remote Cache
>    Affects Versions: jcs-1.3, jcs-2.2
>            Reporter: Amol D
>            Priority: Critical
>         Attachments: StackTrace.txt
>
>
> Currently we are using RMI Remote caching and individually i can connect to both the
servers indiviadually for example  in client if i set 
> jcs.auxiliary.RFailover.attributes.FailoverServers=127.0.0.1:5556
> or 
> jcs.auxiliary.RFailover.attributes.FailoverServers=127.0.0.1:5555
> then caching works fine 
> Further i connect my l client to both  the servers as below 
> jcs.auxiliary.RFailover.attributes.FailoverServers=127.0.0.1:5556,127.0.0.1:5555 
> In this case whenever i cache it always gets added to Primary Server (127.0.0.1:5556)
and in case Primary server goes down Caching should be based on Failover server (127.0.0.1:5555)
however it is not happening . In case Primary goes down client gets a connection to secondary
server (127.0.0.1:5555)  is made as per below logs 
> 12:42:32.748 [main] INFO org.apache.commons.jcs.auxiliary.remote.RemoteCacheManager -
Looking up server [//127.0.0.1:5555/org.apache.commons.jcs.engine.behavior.ICacheServiceNonLocal|https://issues.apache.org/127.0.0.1:5555/org.apache.commons.jcs.engine.behavior.ICacheServiceNonLocal]
12:42:32.783 [main] INFO org.apache.commons.jcs.auxiliary.remote.RemoteCacheManager - Server
found: Proxy[IRemoteCacheServer,RemoteObjectInvocationHandler[UnicastRef [liveRef: [endpoint:[192.168.56.1:5555](remote),objID:[-55e49f52:1641ca4a40a:-7fff,
-6827216959955041134]]]]]
> However when i add a new element to JCS Cache in this case it is not reflected so failover
seems to be not working as there are no memory hits . Attaching a StackTrace of log from client
please provide a fix for this 
>  Similar behavior is seen even with JCS 1.3 version 
> Below is our configuration for Client , Primary Server and Secondary server
> --------------------------------------------------------------------------------------------------
> Client Configuration - ccf 
> jcs.region.test=DC,RFailover
>  jcs.region.test.cacheattributes=org.apache.commons.jcs.engine.CompositeCacheAttributes
>  jcs.region.test.cacheattributes.MemoryCacheName=org.apache.commons.jcs.engine.memory.lru.LRUMemoryCache
>  jcs.region.test.cacheattributes.MaxObjects=1000
> jcs.region.test.elementattributes.IsSpool=false
>  jcs.region.test.elementattributes=org.apache.commons.jcs.engine.ElementAttributes
> jcs.auxiliary.RFailover=org.apache.commons.jcs.auxiliary.remote.RemoteCacheFactory
>  jcs.auxiliary.RFailover.attributes=org.apache.commons.jcs.auxiliary.remote.RemoteCacheAttributes
>  jcs.auxiliary.RFailover.attributes.FailoverServers=127.0.0.1:5556,127.0.0.1:5555
>  jcs.auxiliary.RFailover.attributes.RemoveUponRemotePut=true
>  jcs.auxiliary.RFailover.attributes.GetOnly=false
> --------------------------------------------------------------------------------------------------------------------------
>  
> Primary Server - ccf 
> jcs.default=DC,RCluster1
>  jcs.default.cacheattributes=
>  org.apache.commons.jcs.engine.CompositeCacheAttributes
>  jcs.default.cacheattributes.MaxObjects=1000
> registry.host=localhost
>  registry.port=5556
>  remote.cache.service.port=5556
>  remote.cache.rmiSocketFactoryTimeoutMillis=5000
>  remote.cluster.LocalClusterConsistency=true
>  remote.cluster.AllowClusterGet=true
> jcs.auxiliary.RCluster1=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheFactory
>  jcs.auxiliary.RCluster1.attributes=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheAttributes
>  jcs.auxiliary.RCluster1.attributes.RemoteTypeName=CLUSTER
>  jcs.auxiliary.RCluster1.attributes.RemoveUponRemotePut=false
>  jcs.auxiliary.RCluster1.attributes.ClusterServers=localhost:5555
>  jcs.auxiliary.RCluster1.attributes.GetOnly=false
>  # Remote RMI Cache set up to failover
>  jcs.auxiliary.RFailover=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheFactory
>  jcs.auxiliary.RFailover.attributes=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheAttributes
>  jcs.auxiliary.RFailover.attributes.FailoverServers=
>  localhost:5555,localhost:5556
>  jcs.auxiliary.RC.attributes.RemoveUponRemotePut=true
>  jcs.auxiliary.RFailover.attributes.GetOnly=false
> --------------------------------------------------------------------------------------------------
> Secondary Server ccf 
> registry.host=localhost
>  registry.port=5555
> remote.cache.service.port=5555
> remote.cache.rmiSocketFactoryTimeoutMillis=5000
> remote.cluster.LocalClusterConsistency=true
>  remote.cluster.AllowClusterGet=true
> jcs.default=DC,RCluster1
>  jcs.default.cacheattributes=
>  org.apache.commons.jcs.engine.CompositeCacheAttributes
>  jcs.default.cacheattributes.MaxObjects=1000
> jcs.auxiliary.RCluster1=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheFactory
>  jcs.auxiliary.RCluster1.attributes=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheAttributes
>  jcs.auxiliary.RCluster1.attributes.RemoteTypeName=CLUSTER
>  jcs.auxiliary.RCluster1.attributes.RemoveUponRemotePut=false
>  jcs.auxiliary.RCluster1.attributes.ClusterServers=localhost:5556
>  jcs.auxiliary.RCluster1.attributes.GetOnly=false
> jcs.auxiliary.RFailover=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheFactory
>  jcs.auxiliary.RFailover.attributes=
>  org.apache.commons.jcs.auxiliary.remote.RemoteCacheAttributes
>  jcs.auxiliary.RFailover.attributes.FailoverServers=
>  localhost:5555,localhost:5556
>  jcs.auxiliary.RC.attributes.RemoveUponRemotePut=true
>  jcs.auxiliary.RFailover.attributes.GetOnly=false
>  



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