You have the remote server configured to invalidate items on other local caches
when something is put into the originating local cache. When an item is put in
C1 it tells CS, CS then tells all other registered caches, in this case C2, to
remove the item. The setting is in this line. If you don't want this
behavior, then set this to false.
jcs.auxiliary.RFailover.attributes.RemoveUponRemotePut=true
Having this set to true is recommended for situations where the data on a
particular machine may be somewhat user specific. There are some case, like
this, where you don't want the items stored in memory to be the same on all
machines.
Cheers,
Aaron
-----Original Message-----
From: David Vismans [mailto:david4@xxxxxxxxx]
Sent: Monday, August 09, 2004 5:13 AM
To: turbine-jcs-dev@xxxxxxxxxxxxxxxxxx
Subject: Newbie: pulling my hair out with remote cache
Hi everyone,
First, JCS looks great! Looking forward to some extensive usage.
However, I have been trying to get the remote cache working for about a week
now, and I am not succeeding.
Here's the setup:
C1 (client 1) pushes an element E in it's local cache.
CS (server) receives (the update of) this object and does store it.
C2 (client 2) is able to retrieve the cached element E from CS.
so far so good,
but when C1 repetitively updates E (named "test") with a random integer value,
C2 is not notified of the new value for this key. CS DOES receive the element,
but does not propagate to C2.
I have read through every example and also mailinglist messages I still have
not found the solution.
I got JCS from the CVS and RMI is working, I created the stubs etc.
I am using the latest jdk on windows xp home edition.
Perhaps an interesting detail: I did not get the lateral cache to propagate
either (there is no firewall running). All clients and the server run on the
same machine.
If anyone could help me out here I would really appreciate it!
Thanks in advance,
David
Below are my configuration files:
C1:
# PRE-DEFINED CACHE REGIONS
jcs.region.Tasks=DC,RFailover
jcs.region.Tasks.cacheattributes=org.apache.jcs.engine.CompositeCacheAtt
ributes
jcs.region.Tasks.cacheattributes.MaxObjects=1000
jcs.region.Tasks.cacheattributes.MemoryCacheName=org.apache.jcs.engine.m
emory.lru.LRUMemoryCache
jcs.region.Tasks.cacheattributes.UseMemoryShrinker=false
jcs.region.Tasks.cacheattributes.MaxMemoryIdleTimeSeconds=3600
jcs.region.Tasks.cacheattributes.ShrinkerIntervalSeconds=60
jcs.region.Tasks.elementattributes=org.apache.jcs.engine.ElementAttribut
es
jcs.region.Tasks.elementattributes.IsEternal=false
jcs.region.Tasks.elementattributes.IdleTime=1800
jcs.region.Tasks.elementattributes.IsSpool=true
jcs.region.Tasks.elementattributes.IsRemote=true
jcs.region.Tasks.elementattributes.IsLateral=false
jcs.system.groupIdCache=jcs.system.groupIdCache.cacheattributes=org.apac
he.jcs.engine.CompositeCacheAttributes
jcs.system.groupIdCache.cacheattributes.MaxObjects=10000
jcs.system.groupIdCache.cacheattributes.MemoryCacheName=org.apache.jcs.e
ngine.memory.lru.LRUMemoryCache
# Remote RMI Cache set up to failover
jcs.auxiliary.RFailover=org.apache.jcs.auxiliary.remote.RemoteCacheFacto
ry
jcs.auxiliary.RFailover.attributes=org.apache.jcs.auxiliary.remote.Remot
eCacheAttributes
jcs.auxiliary.RFailover.attributes.RemoteHost=localhost
jcs.auxiliary.RFailover.attributes.RemotePort=2099
jcs.auxiliary.RFailover.attributes.LocalPort=2103
#jcs.auxiliary.RFailover.attributes.FailoverServers=localhost:2099
jcs.auxiliary.RFailover.attributes.RemoveUponRemotePut=true
jcs.auxiliary.RFailover.attributes.GetOnly=false
#jcs.auxiliary.RFailover.attributes.RemoteTypeName=REMOTE
# AVAILABLE AUXILIARY CACHES
jcs.auxiliary.DC=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheF
actory
jcs.auxiliary.DC.attributes=org.apache.jcs.auxiliary.disk.indexed.Indexe
dDiskCacheAttributes
jcs.auxiliary.DC.attributes.DiskPath=C:/Temp/diskcachelocal
jcs.auxiliary.DC.attributes.maxKeySize=1000
------------------
C2:
# PRE-DEFINED CACHE REGIONS
jcs.region.Tasks=DC,RFailover
jcs.region.Tasks.cacheattributes=org.apache.jcs.engine.CompositeCacheAtt
ributes
jcs.region.Tasks.cacheattributes.MaxObjects=1000
jcs.region.Tasks.cacheattributes.MemoryCacheName=org.apache.jcs.engine.m
emory.lru.LRUMemoryCache
jcs.region.Tasks.cacheattributes.UseMemoryShrinker=false
jcs.region.Tasks.cacheattributes.MaxMemoryIdleTimeSeconds=3600
jcs.region.Tasks.cacheattributes.ShrinkerIntervalSeconds=60
jcs.region.Tasks.elementattributes=org.apache.jcs.engine.ElementAttribut
es
jcs.region.Tasks.elementattributes.IsEternal=false
jcs.region.Tasks.elementattributes.IdleTime=1800
jcs.region.Tasks.elementattributes.IsSpool=true
jcs.region.Tasks.elementattributes.IsRemote=true
jcs.region.Tasks.elementattributes.IsLateral=false
jcs.system.groupIdCache=jcs.system.groupIdCache.cacheattributes=org.apac
he.jcs.engine.CompositeCacheAttributes
jcs.system.groupIdCache.cacheattributes.MaxObjects=10000
jcs.system.groupIdCache.cacheattributes.MemoryCacheName=org.apache.jcs.e
ngine.memory.lru.LRUMemoryCache
# Remote RMI Cache set up to failover
jcs.auxiliary.RFailover=org.apache.jcs.auxiliary.remote.RemoteCacheFacto
ry
jcs.auxiliary.RFailover.attributes=org.apache.jcs.auxiliary.remote.Remot
eCacheAttributes
jcs.auxiliary.RFailover.attributes.RemoteHost=localhost
jcs.auxiliary.RFailover.attributes.RemotePort=2099
jcs.auxiliary.RFailover.attributes.LocalPort=2102
#jcs.auxiliary.RFailover.attributes.FailoverServers=localhost:2099
jcs.auxiliary.RFailover.attributes.RemoveUponRemotePut=true
#jcs.auxiliary.RFailover.attributes.RemoteTypeName=REMOTE
jcs.auxiliary.RFailover.attributes.GetOnly=false
#jcs.auxiliary.RFailover.attributes.GetOnly=false
#jcs.auxiliary.RFailover.attributes.RemoteServiceName=RemoteCache
# AVAILABLE AUXILIARY CACHES
jcs.auxiliary.DC=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheF
actory
jcs.auxiliary.DC.attributes=org.apache.jcs.auxiliary.disk.indexed.Indexe
dDiskCacheAttributes
jcs.auxiliary.DC.attributes.DiskPath=C:/Temp/updateclient1
jcs.auxiliary.DC.attributes.maxKeySize=1000
--------------
CS:
registry.host=localhost
registry.port=2099
remote.cache.service.port=2099
remote.tomcat.on=false
remote.cluster.LocalClusterConsistency=true
jcs.system.groupIdCache=DC
jcs.system.groupIdCache.cacheattributes=org.apache.jcs.engine.CompositeC
acheAttributes
jcs.system.groupIdCache.cacheattributes.MaxObjects=10000
jcs.system.groupIdCache.cacheattributes.MemoryCacheName=org.apache.jcs.e
ngine.memory.lru.LRUMemoryCache
jcs.system.groupIdCache.elementattributes=org.apache.jcs.engine.ElementA
ttributes
jcs.system.groupIdCache.elementattributes.IsEternal=true
jcs.system.groupIdCache.elementattributes.MaxLifeSeconds=3600
jcs.system.groupIdCache.elementattributes.IdleTime=1800
jcs.system.groupIdCache.elementattributes.IsSpool=true
jcs.system.groupIdCache.elementattributes.IsRemote=false
jcs.system.groupIdCache.elementattributes.IsLateral=false
# DEFAULT CACHE REGION
jcs.default=DC
jcs.default.cacheattributes=org.apache.jcs.engine.CompositeCacheAttribut
es
jcs.default.cacheattributes.MaxObjects=10000
jcs.default.cacheattributes.MemoryCacheName=org.apache.jcs.engine.memory
.lru.LRUMemoryCache
jcs.default.elementattributes.IsEternal=false
jcs.default.elementattributes.MaxLifeSeconds=3600
jcs.default.elementattributes.IdleTime=1800
jcs.default.elementattributes.IsSpool=true
jcs.default.elementattributes.IsRemote=true
jcs.default.elementattributes.IsLateral=false
# PRE-DEFINED CACHE REGIONS
jcs.region.Tasks=DC
jcs.region.Tasks.cacheattributes=org.apache.jcs.engine.CompositeCacheAtt
ributes
jcs.region.Tasks.cacheattributes.MaxObjects=1000
jcs.region.Tasks.cacheattributes.MemoryCacheName=org.apache.jcs.engine.m
emory.lru.LRUMemoryCache
jcs.region.Tasks.cacheattributes.UseMemoryShrinker=false
jcs.region.Tasks.cacheattributes.MaxMemoryIdleTimeSeconds=3600
jcs.region.Tasks.cacheattributes.ShrinkerIntervalSeconds=60
jcs.region.Tasks.elementattributes=org.apache.jcs.engine.ElementAttribut
es
jcs.region.Tasks.elementattributes.IsEternal=true
jcs.region.Tasks.elementattributes.IdleTime=1800
jcs.region.Tasks.elementattributes.IsSpool=true
jcs.region.Tasks.elementattributes.IsRemote=true
jcs.region.Tasks.elementattributes.IsLateral=false
# AVAILABLE AUXILIARY CACHES
jcs.auxiliary.DC=org.apache.jcs.auxiliary.disk.indexed.IndexedDiskCacheF
actory
jcs.auxiliary.DC.attributes=org.apache.jcs.auxiliary.disk.indexed.Indexe
dDiskCacheAttributes
jcs.auxiliary.DC.attributes.DiskPath=C:/Temp/diskcacheremote/
jcs.auxiliary.DC.attributes.maxKeySize=100000
jcs.auxiliary.DC.elementattributes=org.apache.jcs.engine.ElementAttribut
es
jcs.auxiliary.DC.elementattributes.IsEternal=true
jcs.auxiliary.DC.elementattributes.IdleTime=1800
jcs.auxiliary.DC.elementattributes.IsSpool=true
jcs.auxiliary.DC.elementattributes.IsRemote=true
jcs.auxiliary.DC.elementattributes.IsLateral=false
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