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我有一个用于缓存目的的Hazelcast v3.8的Java应用程序。当我部署在Tomcat服务器上时，启动需要8分钟到10分钟的时间，在Ubuntu Linux上，但启动Mac需要1分钟。Hazelcast缓慢启动
正如我所推荐的那样，我将系统属性-Djava.security.egd=file:/dev/./urandom设置为拥有更快的随机库，但问题仍然存在。
线程转储给了我这样的：
"hz._hzInstance_1_app-dev.operation-parker" #44 prio=5 os_prio=0 tid=0x00007fb4b901f800 nid=0x194c waiting on condition [0x00007fb4cd709000]
java.lang.Thread.State: TIMED_WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb979150> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.DelayQueue.poll(DelayQueue.java:259)
at com.hazelcast.spi.impl.operationparker.impl.OperationParkerImpl$ExpirationTask.doRun(OperationParkerImpl.java:338)
at com.hazelcast.spi.impl.operationparker.impl.OperationParkerImpl$ExpirationTask.run(OperationParkerImpl.java:323)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)
Locked ownable synchronizers:
- <0x00000006cb979398> (a java.util.concurrent.ThreadPoolExecutor$Worker)
"hz._hzInstance_1_app-dev.event-10" #43 daemon prio=5 os_prio=0 tid=0x00007fb4baad1000 nid=0x194b waiting on condition [0x00007fb4cd80a000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb971f40> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-9" #42 daemon prio=5 os_prio=0 tid=0x00007fb4bd694800 nid=0x194a waiting on condition [0x00007fb4cd90b000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb973f40> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-8" #41 daemon prio=5 os_prio=0 tid=0x00007fb4b9d18000 nid=0x1949 waiting on condition [0x00007fb4cda0c000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb974150> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-7" #40 daemon prio=5 os_prio=0 tid=0x00007fb4bc4ad800 nid=0x1948 waiting on condition [0x00007fb4cdb0d000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb972150> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-6" #39 daemon prio=5 os_prio=0 tid=0x00007fb4bd99f000 nid=0x1947 waiting on condition [0x00007fb4cdc0e000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb972360> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-5" #38 daemon prio=5 os_prio=0 tid=0x00007fb4bd06d800 nid=0x1946 waiting on condition [0x00007fb4cdd0f000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb974398> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-4" #37 daemon prio=5 os_prio=0 tid=0x00007fb4bb032000 nid=0x1945 waiting on condition [0x00007fb4cde10000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb972778> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-3" #36 daemon prio=5 os_prio=0 tid=0x00007fb4bdaab800 nid=0x1944 waiting on condition [0x00007fb4cdf11000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb9747b0> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-2" #35 daemon prio=5 os_prio=0 tid=0x00007fb4be10f800 nid=0x1943 waiting on condition [0x00007fb4ce012000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb975f40> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.event-1" #34 daemon prio=5 os_prio=0 tid=0x00007fb4bd2d9000 nid=0x1942 waiting on condition [0x00007fb4ce113000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb972b90> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.await(AbstractQueuedSynchronizer.java:2039)
at java.util.concurrent.LinkedBlockingQueue.take(LinkedBlockingQueue.java:442)
at com.hazelcast.util.executor.StripedExecutor$Worker.run(StripedExecutor.java:203)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.cached.thread-5" #24 prio=5 os_prio=0 tid=0x00007fb4b4010000 nid=0x1940 waiting on condition [0x00007fb4ce214000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb712368> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:458)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:924)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.cached.thread-3" #22 prio=5 os_prio=0 tid=0x00007fb4b400c800 nid=0x193e waiting on condition [0x00007fb4ce416000]
java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb712368> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:458)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.take(SynchronousQueue.java:924)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.cached.thread-1" #20 prio=5 os_prio=0 tid=0x00007fb4b4015800 nid=0x193c waiting on condition [0x00007fb4ce618000]
java.lang.Thread.State: TIMED_WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb712368> (a java.util.concurrent.SynchronousQueue$TransferStack)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.SynchronousQueue$TransferStack.awaitFulfill(SynchronousQueue.java:460)
at java.util.concurrent.SynchronousQueue$TransferStack.transfer(SynchronousQueue.java:362)
at java.util.concurrent.SynchronousQueue.poll(SynchronousQueue.java:941)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1066)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)
Locked ownable synchronizers:
- None
"hz._hzInstance_1_app-dev.scheduled" #19 prio=5 os_prio=0 tid=0x00007fb4bdfc6800 nid=0x193b waiting on condition [0x00007fb4ce719000]
java.lang.Thread.State: TIMED_WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00000006cb716368> (a java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject)
at java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:215)
at java.util.concurrent.locks.AbstractQueuedSynchronizer$ConditionObject.awaitNanos(AbstractQueuedSynchronizer.java:2078)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:1093)
at java.util.concurrent.ScheduledThreadPoolExecutor$DelayedWorkQueue.take(ScheduledThreadPoolExecutor.java:809)
at java.util.concurrent.ThreadPoolExecutor.getTask(ThreadPoolExecutor.java:1067)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1127)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
at com.hazelcast.util.executor.HazelcastManagedThread.executeRun(HazelcastManagedThread.java:76)
at com.hazelcast.util.executor.HazelcastManagedThread.run(HazelcastManagedThread.java:92)
Locked ownable synchronizers:
- None
做一些测试后，我发现启动花费在此调用（创建hazelcast实例）6分钟Hazelcast.newHazelcastInstance(config)与Config config = new FileSystemXmlConfig(configFile)
配置在如下： Hazelcast configuration : Config{groupConfig=GroupConfig [name=*************, password=*************], properties={hazelcast.event.thread.count=10, hazelcast.memcache.enabled=false, hazelcast.rest.enabled=false, hazelcast.logging.type=jdk, hazelcast.socket.bind.any=false}, networkConfig=NetworkConfig{publicAddress='null', port=5701, portCount=100, portAutoIncrement=true, join=JoinConfig{multicastConfig=MulticastConfig [enabled=false, multicastGroup=224.2.2.3, multicastPort=54327, multicastTimeToLive=32, multicastTimeoutSeconds=2, trustedInterfaces=[], loopbackModeEnabled=false], tcpIpConfig=TcpIpConfig [enabled=false, connectionTimeoutSeconds=5, members=[], requiredMember=null], awsConfig=AwsConfig{enabled=false, region='us-east-1', securityGroupName='null', tagKey='null', tagValue='null', hostHeader='ec2.amazonaws.com', iamRole='null', connectionTimeoutSeconds=5}, [email protected]63d057}, interfaces=InterfacesConfig{enabled=true, interfaces=[127.0.0.1]}, sslConfig=null, socketInterceptorConfig=null, symmetricEncryptionConfig=null}, mapConfigs={}, topicConfigs={}, reliableTopicConfigs={}, queueConfigs={}, multiMapConfigs={}, executorConfigs={}, semaphoreConfigs={}, ringbufferConfigs={}, wanReplicationConfigs={}, partitionGroupConfig=PartitionGroupConfig{enabled=false, groupType=PER_MEMBER, memberGroupConfigs=[]}, managementCenterConfig=ManagementCenterConfig{enabled=false, url='http://localhost:9000/mancenter', updateInterval=3}, securityConfig=SecurityConfig{enabled=false, memberCredentialsConfig=CredentialsFactoryConfig{className='null', implementation=null, properties={}}, memberLoginModuleConfigs=[], clientLoginModuleConfigs=[], clientPolicyConfig=PermissionPolicyConfig{className='null', implementation=null, properties={}}, clientPermissionConfigs=[]}, liteMember=false}
有什么我可以做的，以减少Ubuntu的启动时间？
也许你可以把这里多一点细节，因为8分钟似乎并没有被榛树，而是应用程序相关。 – JiriS
会有同样的说法。任何MapLoaders或类似的东西自动启动？ – noctarius
我也会尝试不同的发现。如果您使用多播。尝试TCP/IP。 –