org.apache.zookeeper.KeeperException $ ConnectionLossException: KeeperErrorCode = ConnectionLoss for/lock/test3_node

Question

Я использую клиент-куратор для работы сервера zookeeper, но всегда сбой, если я запускаю десять потоков для работы сервера zookeeper одновременно.

Он работает нормально, если число потоков меньше 6, в то время как происходит потеря соединения, я должен перезапустить сервер zookeeper. кто-нибудь знает, как решить эту проблему? ..

curatorClient = CuratorFrameworkFactory.builder().connectString(zkAddress).sessionTimeoutMs(Constant.ZK_SESSION_TIMEOUT).connectionTimeoutMs(Constant.ZK_CONNECTION_TIMEOUT).retryPolicy(retryPolicy).build(); 
curatorClient.start(); 

я сделал следующую операцию: curatorClient.create() inbackground (новый обратного вызова() {}) forPath(); curatorClient.delete(). Inbackground (new callback() {}). ForPath(); lock.acquire(); ..

ОШИБКА:

org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode  
= ConnectionLoss for /lock/test3_node 
at org.apache.zookeeper.KeeperException.create(KeeperException.java:99) 
at org.apache.zookeeper.KeeperException.create(KeeperException.java:51) 
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1472) 
at org.apache.zookeeper.ZooKeeper.getChildren(ZooKeeper.java:1500) 
at 

org.apache.curator.framework.imps.CreateBuilderImpl$12.call(CreateBuilderImpl.java:766) 
at org.apache.curator.framework.imps.CreateBuilderImpl$12.call(CreateBuilderImpl.java:758) 
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107) 
at org.apache.curator.framework.imps.CreateBuilderImpl.findProtectedNodeInForeground(CreateBuilderImpl.java:754) 
at org.apache.curator.framework.imps.CreateBuilderImpl.access$1300(CreateBuilderImpl.java:44) 
at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:713) 
at org.apache.curator.framework.imps.CreateBuilderImpl$11.call(CreateBuilderImpl.java:703) 
at org.apache.curator.RetryLoop.callWithRetry(RetryLoop.java:107) 
at org.apache.curator.framework.imps.CreateBuilderImpl.pathInForeground(CreateBuilderImpl.java:699) 
at org.apache.curator.framework.imps.CreateBuilderImpl.protectedPathInForeground(CreateBuilderImpl.java:477) 
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:467) 
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:447) 
at org.apache.curator.framework.imps.CreateBuilderImpl.forPath(CreateBuilderImpl.java:44) 
at org.apache.curator.framework.recipes.locks.StandardLockInternalsDriver.createsTheLock(StandardLockInternalsDriver.java:54) 
at org.apache.curator.framework.recipes.locks.LockInternals.attemptLock(LockInternals.java:216) 
at org.apache.curator.framework.recipes.locks.InterProcessMutex.internalLock(InterProcessMutex.java:232) 
at org.apache.curator.framework.recipes.locks.InterProcessMutex.acquire(InterProcessMutex.java:108) 
at 
$InsertQueueCallBack.processResult(CuratorUtil.java:614) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl.sendToBackgroundCallback(CuratorFrameworkImpl.java:743) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl.processBackgroundOperation(CuratorFrameworkImpl.java:520) 
at org.apache.curator.framework.imps.CreateBuilderImpl.sendBackgroundResponse(CreateBuilderImpl.java:565) 
at org.apache.curator.framework.imps.CreateBuilderImpl.access$900(CreateBuilderImpl.java:44) 
at org.apache.curator.framework.imps.CreateBuilderImpl$6.processResult(CreateBuilderImpl.java:524) 
at org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:599) 
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:498) 
..... 
Connection timed out for connection string (slc03nwh.us.oracle.com:2181) and timeout (15000)/elapsed (5380) 
org.apache.curator.CuratorConnectionLossException: KeeperErrorCode = ConnectionLoss 
at org.apache.curator.ConnectionState.checkTimeouts(ConnectionState.java:195) 
at org.apache.curator.ConnectionState.getZooKeeper(ConnectionState.java:87) 
at org.apache.curator.CuratorZookeeperClient.getZooKeeper(CuratorZookeeperClient.java:115) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl.performBackgroundOperation(CuratorFrameworkImpl.java:821) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl.backgroundOperationsLoop(CuratorFrameworkImpl.java:807) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl.access$300(CuratorFrameworkImpl.java:63) 
at org.apache.curator.framework.imps.CuratorFrameworkImpl$4.call(CuratorFrameworkImpl.java:267) 
at java.util.concurrent.FutureTask.run(FutureTask.java:266) 
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) 
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) 
at java.lang.Thread.run(Thread.java:745) 

Затем я добавляю ConnectionStateListener и UnhandledErrorListener, я получил следующую информацию:

newState.isConnected()false 
SUSPENDED 
newState.isConnected()true 
RECONNECTED 
newState.isConnected()lost 
RECONNECTED 

    unhandledErrorListener:Background operation retry gave up 
    Background retry gave up 

Answer 1

Я пытался использовать одноэлементный экземпляр для создания клиент, и установите время ожидания соединения дольше. этот вопрос пропал.

Но я не могу найти причину причинения причины потери связи.