Hive 问题合集

• HDP kerberos 关闭后,出现hiveServer2 不断的启动和关闭

2019-09-20 14:16:12,751 FATAL [main]: server.HiveServer2 (HiveServer2.java:addServerInstanceToZooKeeper(258)) - Unable to create a znode for this server instance
java.lang.Exception: Max znode creation wait time: 120s exhausted
        at org.apache.hive.service.server.HiveServer2.addServerInstanceToZooKeeper(HiveServer2.java:247)
        at org.apache.hive.service.server.HiveServer2.start(HiveServer2.java:395)
        at org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:475)
        at org.apache.hive.service.server.HiveServer2.access$700(HiveServer2.java:87)
        at org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:720)
        at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:593)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
2019-09-20 14:16:12,752 ERROR [main]: server.HiveServer2 (HiveServer2.java:start(397)) - Error adding this HiveServer2 instance to ZooKeeper: 
java.lang.Exception: Max znode creation wait time: 120s exhausted
        at org.apache.hive.service.server.HiveServer2.addServerInstanceToZooKeeper(HiveServer2.java:247)
        at org.apache.hive.service.server.HiveServer2.start(HiveServer2.java:395)
        at org.apache.hive.service.server.HiveServer2.startHiveServer2(HiveServer2.java:475)
        at org.apache.hive.service.server.HiveServer2.access$700(HiveServer2.java:87)
        at org.apache.hive.service.server.HiveServer2$StartOptionExecutor.execute(HiveServer2.java:720)
        at org.apache.hive.service.server.HiveServer2.main(HiveServer2.java:593)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.hadoop.util.RunJar.run(RunJar.java:233)
        at org.apache.hadoop.util.RunJar.main(RunJar.java:148)
2019-09-20 14:16:12,752 INFO  [main]: server.HiveServer2 (HiveServer2.java:stop(405)) - Shutting down HiveServer2
2019-09-20 14:16:12,752 INFO  [main]: thrift.ThriftCLIService (ThriftCLIService.java:stop(221)) - Thrift server has stopped
2019-09-20 14:16:12,752 INFO  [main]: service.AbstractService (AbstractService.java:stop(125)) - Service:ThriftBinaryCLIService is stopped.

原因是hiveServer2无法在zookeeper中创建节点，可能zookeeper出了问题，可以检查一下是否创建了zk节点。进入zk查看是否有创建 hiveserver2

/usr/hdp/current/zookeeper-client/bin/zkCli.sh
ls  /     //查看全部的节点

ls /hiveserver2    //查看hiveserver2节点内容

这边看到hiveserver2 是已经创建了，但是权限是kerberos权限，导致hiveserver2 不能够再加入zookeeper中。

第一种处理方法：

删除已有的hiveserver2 ，重启hiveserver2 ，可以看到新的hiveserver2 已经加入到zk中了。

hiveserver2 正常了。

第二种处理方法：

修改配置，当kerberos开启和关闭时采用不同的配置，在znode中创建不同的节点信息

比如，关闭kerberos时

"hive.server2.zookeeper.namespace"="hiveserver2"

开启时

"hive.server2.zookeeper.namespace"="hiveserver2-kerberos"

最后

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