connexion hbase refusée
Je suis nouveau sur HBase et Hadoop. J'ai complètement le programme d'installation HBase et a commencé à la perfection. Maintenant, quand j'ai essayé de vous connecter à partir de p1 à HBase (où HBase l'installation sur p2) à l'aide d'un client Java, alors qu'il est en train de lancer une étrange exception à la règle.
12/04/17 14:36:37 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=192.168.15.20:2181 sessionTimeout=180000 watcher=hconnection
12/04/17 14:36:38 INFO zookeeper.ClientCnxn: Opening socket connection to server /192.168.15.20:2181
12/04/17 14:36:38 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:39 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:39 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:41 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:41 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:43 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:43 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:44 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:44 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:45 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:45 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:47 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:47 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:48 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:48 WARN zookeeper.ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)
12/04/17 14:36:49 INFO zookeeper.ClientCnxn: Opening socket connection to server hbase.local/192.168.15.20:2181
12/04/17 14:36:49 INFO zookeeper.ZooKeeper: Session: 0x0 closed
org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is able to connect to ZooKeeper but the connection closes immediately. This could be a sign that the server has too many connections (30 is the default). Consider inspecting your ZK server logs for that error and then make sure you are reusing HBaseConfiguration as often as you can. See HTable's javadoc for more information.
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:155)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getZooKeeperWatcher(HConnectionManager.java:1002)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.setupZookeeperTrackers(HConnectionManager.java:304)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.<init>(HConnectionManager.java:295)
at org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnectionManager.java:157)
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:90)
at org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:1258)
at HBaseDemo.main(HBaseDemo.java:55)
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:809)
at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:837)
at org.apache.hadoop.hbase.zookeeper.ZKUtil.createAndFailSilent(ZKUtil.java:903)
at org.apache.hadoop.hbase.zookeeper.ZooKeeperWatcher.<init>(ZooKeeperWatcher.java:133)
... 7 more
12/04/17 14:36:49 INFO zookeeper.ClientCnxn: EventThread shut down
Execution script exiting /04/17 17:41:35 INFO zookeeper.ZooKeeper: Client environment:user.name=xyz
12/04/17 17:41:35 INFO zookeeper.ZooKeeper: Client environment:user.home=/home/xyz
12/04/17 17:41:35 INFO zookeeper.ZooKeeper: Client environment:user.dir=/opt/xyz/hbase-sample
12/04/17 17:41:35 INFO zookeeper.ZooKeeper: Initiating client connection, connectString=192.168.15.169:2181 sessionTimeout=180000 watcher=hconnection
12/04/17 17:41:35 INFO zookeeper.ClientCnxn: Opening socket connection to server /192.168.15.169:2181
12/04/17 17:41:35 INFO zookeeper.ClientCnxn: Socket connection established to hbase.xyz.com/192.168.15.169:2181, initiating session
12/04/17 17:41:35 INFO zookeeper.ClientCnxn: Session establishment complete on server hbase.xyz.com/192.168.15.169:2181, sessionid = 0x136c00d59ac0009, negotiated timeout = 180000
12/04/17 17:41:36 INFO client.HConnectionManager$HConnectionImplementation: getMaster attempt 0 of 1 failed; no more retrying.
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:567)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:604)
at org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:328)
at org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:883)
at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:750)
at org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257)
at $Proxy4.getProtocolVersion(Unknown Source)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:419)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:393)
at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:444)
at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:360)
at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:94)
at org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:1258)
at HBaseDemo.main(HBaseDemo.java:55)
HBase is not running!
Execution script exiting source d'informationauteur khan | 2012-04-17
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J'ai trouvé la solution.
En supprimant simplement localhost entrée de mon
/etc/hosts. Maintenant, mon localhost entrée est comme 192.169.19.50 [qui est mon hbase IP] = localhost à la place de 127.0.0.1 localhost.La accepté de répondre ici pourrait fonctionner, mais seulement comme un effet secondaire.
Le problème est que HBase est l'ouverture d'un port en écoute sur localhost (c'est à dire, sur le loopback) plutôt que sur la face externe de l'interface. Retrait de l'localhost entrée dans /etc/hosts forces HBase de se lier à l'interface externe, mais seulement parce qu'il ne peut pas trouver de localhost. Cela est susceptible de devenir un problème lorsque certains démon veut légitimement écouter ou de se connecter à localhost (via lo) seul.
Vous pouvez vérifier que vous avez ce problème à l'aide de telnet pour se connecter au port 60000 via localhost ou l'adresse IP attribuée à l'ordinateur. Il est probable que vous serez en mesure de se connecter via le localhost (parce que c'est là HBase est lié) et de ne pas l'IP.
Préférable d'utiliser le nom de votre ordinateur dans votre HBase conf.
En supposant que vous avez instancié de Configuration pour votre HBase, jeu de hbase maître, la gardienne d'animaux de quorum et de la znode parent. Un peu comme ce-