1、启动hive的时候出现这个问题，报错如下所示：
[hadoop@slaver1 conf]$ hive Logging initialized using configuration in jar:file:/home/hadoop/soft/hive-0.13.-cdh5.3.6/lib/hive-common-0.13.-cdh5.3.6.jar!/hive-log4j.properties
Exception in thread "main" java.lang.RuntimeException: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
at java.lang.reflect.Method.invoke(Method.java:)
at org.apache.hadoop.util.RunJar.main(RunJar.java:)
Caused by: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient
at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:)
at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:)
at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:)
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:)
... more
Caused by: java.lang.reflect.InvocationTargetException
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:)
at java.lang.reflect.Constructor.newInstance(Constructor.java:)
at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:)
... more
Caused by: MetaException(message:Could not connect to meta store using any of the URIs provided. Most recent failure: org.apache.thrift.transport.TTransportException: java.net.ConnectException: Connection refused
at org.apache.thrift.transport.TSocket.open(TSocket.java:)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.open(HiveMetaStoreClient.java:)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:)
at java.lang.reflect.Constructor.newInstance(Constructor.java:)
at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.<init>(RetryingMetaStoreClient.java:)
at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:)
at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:)
at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:)
at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:)
at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:)
at java.lang.reflect.Method.invoke(Method.java:)
at org.apache.hadoop.util.RunJar.main(RunJar.java:)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:)
at java.net.Socket.connect(Socket.java:)
at org.apache.thrift.transport.TSocket.open(TSocket.java:)
... more
)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.open(HiveMetaStoreClient.java:)
at org.apache.hadoop.hive.metastore.HiveMetaStoreClient.<init>(HiveMetaStoreClient.java:)
... more
2、具体原因是我配置hive的hive.site.sh的时候配置了如下所示的内容，注释了就不报错了，这里先注释了：
