hive 客户端报错：Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
咋一看以为是Mysql连接不上，结果发现Mysql正常
错误日志：
1 Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient 2 at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:444) 3 at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:672) 4 at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:616) 5 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 6 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 7 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 8 at java.lang.reflect.Method.invoke(Method.java:606) 9 at org.apache.hadoop.util.RunJar.run(RunJar.java:221) 10 at org.apache.hadoop.util.RunJar.main(RunJar.java:136) 11 Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient 12 at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1449) 13 at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:63) 14 at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:73) 15 at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:2661) 16 at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:2680) 17 at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:425) 18 ... 8 more 19 Caused by: java.lang.reflect.InvocationTargetException 20 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) 21 at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) 22 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) 23 at java.lang.reflect.Constructor.newInstance(Constructor.java:526) 24 at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1447) 25 ... 13 more 26 Caused by: MetaException(message:Metastore contains multiple versions) 27 at org.apache.hadoop.hive.metastore.ObjectStore.getMSchemaVersion(ObjectStore.java:6643) 28 at org.apache.hadoop.hive.metastore.ObjectStore.getMetaStoreSchemaVersion(ObjectStore.java:6605) 29 at org.apache.hadoop.hive.metastore.ObjectStore.checkSchema(ObjectStore.java:6564) 30 at org.apache.hadoop.hive.metastore.ObjectStore.verifySchema(ObjectStore.java:6552) 31 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 32 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 33 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 34 at java.lang.reflect.Method.invoke(Method.java:606) 35 at org.apache.hadoop.hive.metastore.RawStoreProxy.invoke(RawStoreProxy.java:98) 36 at com.sun.proxy.$Proxy5.verifySchema(Unknown Source) 37 at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.getMS(HiveMetaStore.java:539) 38 at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.createDefaultDB(HiveMetaStore.java:587) 39 at org.apache.hadoop.hive.metastore.HiveMetaStore$HMSHandler.init(HiveMetaStore.java:429) 40 at org.apache.hadoop.hive.metastore.RetryingHMSHandler.<init>(RetryingHMSHandler.java:66) 41 at org.apache.hadoop.hive.metastore.RetryingHMSHandler.getProxy(RetryingHMSHandler.java:72) 42 at org.apache.hadoop.hive.metastore.HiveMetaStore.newRetryingHMSHandler(HiveMetaStore.java:5554) 43 at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:178) 44 at org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient.<init>(SessionHiveMetaStoreClient.java:73) 45 ... 18 more
解决方案：
1 mysql> select * from version; 2 3 +--------+----------------+------------------+ 4 5 | VER_ID | SCHEMA_VERSION | VERSION_COMMENT | 6 7 +--------+----------------+------------------+ 8 9 | 1 | 0.13.0 | Set by MetaStore | 10 11 | 6 | 0.13.0 | Set by MetaStore | 12 13 +--------+----------------+------------------+ 14 15 16 17 删除了一条就好了。
原因暂且未知，不过我记得我当时是打开了Hive客户端，但是网络突然断了，不知道是否是这个原因。