HI , One of the clients on my windows box sometimes gets stuck up on startup . I see this in the thread dump of the client.
a. Not sure what those locked synchronizers are "main" #1 prio=5 os_prio=0 tid=0x0000000002c9c800 nid=0x4404 waiting on condition [0x0000000002c8e000] java.lang.Thread.State: WAITING (parking) at sun.misc.Unsafe.park(Native Method) - parking to wait for <0x00000006fda12d20> (a java.util.concurrent.CountDownLatch$Sync) at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175) at java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836) at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:997) at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304) at java.util.concurrent.CountDownLatch.await(CountDownLatch.java:231) at org.apache.ignite.spi.discovery.tcp.ClientImpl.spiStart(ClientImpl.java:312) at org.apache.ignite.spi.discovery.tcp.TcpDiscoverySpi.spiStart(TcpDiscoverySpi.java:2099) at org.apache.ignite.internal.managers.GridManagerAdapter.startSpi(GridManagerAdapter.java:299) at org.apache.ignite.internal.managers.discovery.GridDiscoveryManager.start(GridDiscoveryManager.java:943) at org.apache.ignite.internal.IgniteKernal.startManager(IgniteKernal.java:1960) at org.apache.ignite.internal.IgniteKernal.start(IgniteKernal.java:1276) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start0(IgnitionEx.java:2045) at org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance.start(IgnitionEx.java:1703) - locked <0x00000006db5ca060> (a org.apache.ignite.internal.IgnitionEx$IgniteNamedInstance) at org.apache.ignite.internal.IgnitionEx.start0(IgnitionEx.java:1117) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:637) at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:563) at org.apache.ignite.Ignition.start(Ignition.java:321) at com.company.prophet.projectname.dao.projectnameClientUtil.startIgnite(projectnameClientUtil.java:168) at com.company.prophet.projectname.dao.projectnameClientUtil.startIgniteForSingleOrBlueGreen(projectnameClientUtil.java:109) at com.company.prophet.projectname.dao.projectnameClientUtil.startIgnite(projectnameClientUtil.java:84) at com.company.prophet.projectname.dao.projectnameClient.start(projectnameClient.java:126) at com.company.prophet.projectname.sync.main.Sync.startIgnite(Sync.java:264) at com.company.prophet.projectname.sync.main.Sync.start(Sync.java:133) at com.company.prophet.milliways.shared.common.launcher.MilliwaysGenericLauncher.run(MilliwaysGenericLauncher.java:69) at com.company.prophet.milliways.shared.common.launcher.MilliwaysGenericLauncher$1.run(MilliwaysGenericLauncher.java:150) at com.company.prophet.milliways.shared.common.launcher.MilliwaysGenericLauncher.initService(MilliwaysGenericLauncher.java:120) at com.company.prophet.projectname.sync.main.Sync.main(Sync.java:108) Locked ownable synchronizers: - <0x00000006da73f540> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da73f690> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da84add8> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da84aee0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da8825d8> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da8c1198> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da912440> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da95eac0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006da95eb98> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daa93360> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daa93470> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dab3b070> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dab3b0c0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daba1990> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daba19e0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dabdb580> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dabdb628> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dac3df68> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dac3e010> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dad35b68> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dadb0e88> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dadb0f30> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dadb1018> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dae2e7c8> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dae2e808> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006dae73b20> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb57b8> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb5870> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb5928> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb59e0> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb5a98> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) - <0x00000006daeb5b50> (a java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync) client.txt <http://apache-ignite-users.70518.x6.nabble.com/file/t2757/client.txt> server1.txt <http://apache-ignite-users.70518.x6.nabble.com/file/t2757/server1.txt> server2.txt <http://apache-ignite-users.70518.x6.nabble.com/file/t2757/server2.txt> server3.txt <http://apache-ignite-users.70518.x6.nabble.com/file/t2757/server3.txt> Any pointers will be useful. ( Attached the thread dump of client and the 3 servers ) regards, Veena. -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/