On 2/1/2007 we had a problem where many of our web app threads were waiting for 
org.apache.jcs.engine.memory.lru.LRUMemoryCache.verifyCache , See ThreadDumps 
below.

Any ideas on why this call would hang up most of our threads?  Additionally how 
could we prevent it?

Thanks
Jeremy

Runnable:
daemon prio=5 tid=0x0084f280 nid=0xa9 runnable [7b5ff000..7b6019c0]      at 
org.apache.jcs.engine.memory.lru.LRUMemoryCache.verifyCache(LRUMemoryCache.java:639)
      at 
org.apache.jcs.engine.memory.lru.LRUMemoryCache.get(LRUMemoryCache.java:305)    
  - locked <
0x9f89b968> (a org.apache.jcs.engine.memory.lru.LRUMemoryCache)      at 
org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:452)      
at org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:413)    
  at org.apache.jcs.access.CacheAccess.get(CacheAccess.java:195)

All other threads:
daemon prio=5 tid=0x0084fe70 nid=0xaa waiting for monitor entry 
[7b500000..7b5019c0]      at 
org.apache.jcs.engine.memory.lru.LRUMemoryCache.get(LRUMemoryCache.java)      - 
waiting to lock <0x9f89b968> (a 
org.apache.jcs.engine.memory.lru.LRUMemoryCache)      at 
org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:452)      
at org.apache.jcs.engine.control.CompositeCache.get(CompositeCache.java:413)    
  at org.apache.jcs.access.CacheAccess.get(CacheAccess.java:195)


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