java - Ehcache 2.10 线程被阻塞

Question

ehcache版本
2.10.6
偶尔，由于线程被阻塞，Ehcache 服务器会宕机。请在下面找到有关相互阻塞的存储桶配置和线程详细信息的详细信息。
有多个桶:
桶配置

<cache name="bucket1"
           maxBytesLocalHeap="300m"
           maxBytesLocalDisk="15g"
           timeToIdleSeconds="240"
           timeToLiveSeconds="240"
           eternal="false"
           diskSpoolBufferSizeMB="30"
           memoryStoreEvictionPolicy="LFU"
           diskExpiryThreadIntervalSeconds="360"
           transactionalMode="off"
           diskPersistent="true">
    </cache>

线程转储

http-nio-8080-exec-26
Stack Trace is:
java.lang.Thread.State: BLOCKED (on object monitor)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault.get(OnHeapCachingTier.java:332)
- **waiting to lock <0x0000000604407968>** (a net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault.access$200(OnHeapCachingTier.java:312)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier.getValue(OnHeapCachingTier.java:300)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier.access$000(OnHeapCachingTier.java:62)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier$1.evicted(OnHeapCachingTier.java:84)
at net.sf.ehcache.store.cachingtier.PooledBasedBackEnd$1.removed(PooledBasedBackEnd.java:195)
at net.sf.ehcache.util.concurrent.ConcurrentHashMap.internalReplace(ConcurrentHashMap.java:1346)
at net.sf.ehcache.util.concurrent.ConcurrentHashMap.removeAndNotify(ConcurrentHashMap.java:2647)
at net.sf.ehcache.store.cachingtier.PooledBasedBackEnd.remove(PooledBasedBackEnd.java:113)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier.remove(OnHeapCachingTier.java:207)
at net.sf.ehcache.store.CacheStore.put(CacheStore.java:134)
at net.sf.ehcache.Cache.putInternal(Cache.java:1616)
at net.sf.ehcache.Cache.put(Cache.java:1542)
at net.sf.ehcache.Cache.put(Cache.java:1507)......



http-nio-8080-exec-174
Stack Trace is:
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:502)
at net.sf.ehcache.util.concurrent.ConcurrentHashMap$Node.tryAwaitLock(ConcurrentHashMap.java:687)
- locked <0x00000005fa31d820> (a net.sf.ehcache.util.concurrent.ConcurrentHashMap$Node)
at net.sf.ehcache.util.concurrent.ConcurrentHashMap.internalReplace(ConcurrentHashMap.java:1311)
at net.sf.ehcache.util.concurrent.ConcurrentHashMap.remove(ConcurrentHashMap.java:2643)
at net.sf.ehcache.store.cachingtier.PooledBasedBackEnd.evict(PooledBasedBackEnd.java:159)
at net.sf.ehcache.store.cachingtier.PooledBasedBackEnd$PoolParticipant.evict(PooledBasedBackEnd.java:251)
at net.sf.ehcache.pool.impl.FromLargestCachePoolEvictor.freeSpace(FromLargestCachePoolEvictor.java:49)
at net.sf.ehcache.pool.impl.AtomicPoolAccessor.add(AtomicPoolAccessor.java:71)
at net.sf.ehcache.pool.impl.AbstractPoolAccessor.add(AbstractPoolAccessor.java:67)
at net.sf.ehcache.store.disk.Segment.put(Segment.java:427)
at net.sf.ehcache.store.disk.DiskStore.putFaulted(DiskStore.java:229)
at net.sf.ehcache.store.CacheStore$3.call(CacheStore.java:143)
at net.sf.ehcache.store.CacheStore$3.call(CacheStore.java:137)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault.get(OnHeapCachingTier.java:335)
**- locked <0x0000000604407968> (a net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault)**
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier$Fault.access$200(OnHeapCachingTier.java:312)
at net.sf.ehcache.store.cachingtier.OnHeapCachingTier.get(OnHeapCachingTier.java:176)
at net.sf.ehcache.store.CacheStore.put(CacheStore.java:137)
at net.sf.ehcache.Cache.putInternal(Cache.java:1616)
at net.sf.ehcache.Cache.put(Cache.java:1542)
at net.sf.ehcache.Cache.put(Cache.java:1507)
.......

Answer 1

正如评论中所述，我没有真正的解释，但是......
我们在 ehcache 2.10.5 中遇到了同样的问题:只有堆缓存和 hibernate 和独立使用。
我们通过升级到 ehcache 3.x(当时是 3.6)来修复它。
我们没有调查 2.10 的问题，因为它是一个过时的版本。