[JCS-101] Basic cache functions (store/delete) not occurring consistently

• Type: Question
• Status: Closed
• Priority: Minor
• Resolution: Incomplete
• Affects Version/s: jcs-1.3
• Fix Version/s: jcs-2.0-beta-1
• Component/s: Composite Cache
• Environment: Linux, running on VM
• Assignee: Unassigned
• Reporter: Mike Ellis
• Created: 18/Dec/12 01:53
• Updated: 01/Apr/15 14:51
• Resolved: 06/Jan/14 17:42

Description

Our process had been deployed and running since December 2010 with no problems but two weeks ago we started seeing that updates were not working consistently, but we were not getting errors indicating any problems. We are using version 1.3

Our setup specifies a primary and failover linux server - see cache.ccf snip below - but we see the error even when just one server is active. Separate domain restarts (we use VMs) did not resolve the issue. A simultaneous restart appeared to work (existing records gone, updates happened) but the problem reoccurred within hours.

Commands like clear and dispose also failed to work. Normal ShrinkerThread tasks were running as expected.

Our tech support are checking that the VM environment is working correctly, but is there a reason why store/delete/clear/dispose would not work and would not display an error?

Also, is there a way to retrieve all existing keys from a region at runtime, rather than setting up a group and using putInGroup(...) as records are created? The aim is to retrieve the keys from every record in a specified region without changing code to specify/use groups.

#XpressClientAuthCache
#---------------------
jcs.region.XpressClientAuthCache=RC
jcs.region.XpressClientAuthCache.cacheattributes=org.apache.jcs.engine.CompositeCacheAttributes
jcs.region.XpressClientAuthCache.cacheattributes.MaxObjects=10000
jcs.region.XpressClientAuthCache.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory.lru.LRUMemoryCache
jcs.region.XpressClientAuthCache.cacheattributes.UseMemoryShrinker=true
jcs.region.XpressClientAuthCache.cacheattributes.MaxMemoryIdleTimeSeconds=180
jcs.region.XpressClientAuthCache.cacheattributes.ShrinkerIntervalSeconds=60
jcs.region.XpressClientAuthCache.elementattributes=org.apache.jcs.engine.ElementAttributes
jcs.region.XpressClientAuthCache.elementattributes.IsEternal=false
jcs.region.XpressClientAuthCache.elementattributes.MaxLifeSeconds=86400
jcs.region.XpressClientAuthCache.elementattributes.IdleTime=3600
jcs.region.XpressClientAuthCache.elementattributes.IsSpool=true
jcs.region.XpressClientAuthCache.elementattributes.IsRemote=true
jcs.region.XpressClientAuthCache.elementattributes.IsLateral=true

jcs.auxiliary.RC=org.apache.jcs.auxiliary.remote.RemoteCacheFactory
jcs.auxiliary.RC.attributes=org.apache.jcs.auxiliary.remote.RemoteCacheAttributes
jcs.auxiliary.RC.attributes.FailoverServers=eaicch-adp-0pp:1102,eaicch-adp-0pk:1102
jcs.auxiliary.RC.attributes.RemoveUponRemotePut=false
jcs.auxiliary.RC.attributes.RmiSocketFactoryTimeoutMillis=5000
jcs.auxiliary.RC.attributes.GetOnly=false
jcs.auxiliary.RC.attributes.Receive=true