[jboss-jira] [JBoss JIRA] Resolved: (JBCACHE-1356) "eviction node event queue size is at 98% threshold value of capacity" but wakeUpIntervalSeconds == 1

[Manik Surtani (JIRA)]

     [ http://jira.jboss.com/jira/browse/JBCACHE-1356?page=all ]

Manik Surtani resolved JBCACHE-1356.
------------------------------------

    Resolution: Rejected

Please discuss these on the user forum first.  Not everything is a bug.  :-)

> "eviction node event queue size is at 98% threshold value of capacity" but wakeUpIntervalSeconds == 1
> -----------------------------------------------------------------------------------------------------
>
>                 Key: JBCACHE-1356
>                 URL: http://jira.jboss.com/jira/browse/JBCACHE-1356
>             Project: JBoss Cache
>          Issue Type: Bug
>      Security Level: Public(Everyone can see) 
>          Components: Eviction
>    Affects Versions: 2.0.0.GA
>         Environment: JDK 1.6.0_5
>            Reporter: Anton Spirkov
>         Assigned To: Manik Surtani
>
> We constantly receive the following message under load (~500 TPS):
> [org.jboss.cache.RegionImpl] putNodeEvent(): eviction node event queue size is at 98% threshold value of capacity: 200000 Region: / You will need to reduce the wakeUpIntervalSeconds parameter.
> However we have reduced the  wakeUpIntervalSeconds to 1. This is a snapshot from our configuration:
> <attribute name="CacheMode">LOCAL</attribute>
>         <!-- Max number of milliseconds to wait for a lock acquisition -->
>         <attribute name="LockAcquisitionTimeout">15000</attribute>
>         <!-- Specific eviction policy configurations. This is LRU -->
>         <attribute name="EvictionPolicyConfig">
>             <config>
>                 <attribute name="wakeUpIntervalSeconds">1</attribute>
>                 <attribute name="policyClass">org.jboss.cache.eviction.LRUPolicy</attribute>
>                 <!-- Cache wide default -->
>                 <region name="/_default_">
>                     <attribute name="maxNodes">50000</attribute>
>                     <attribute name="timeToLiveSeconds">1000</attribute>
>                 </region>
>             </config>
>         </attribute>

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