hive多窗口遇到java.sql.SQLException 异常

• 多打开一个客户端窗口启动 hive，会产生 java.sql.SQLException 异常

文章目录

• hive多窗口遇到java.sql.SQLException 异常

Exception in thread “main” java.lang.RuntimeException: java.lang.RuntimeException:Unable to instantiate

org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

at org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:522)

at org.apache.hadoop.hive.cli.CliDriver.run(CliDriver.java:677)

at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:621)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:606)

at org.apache.hadoop.util.RunJar.run(RunJar.java:221)

at org.apache.hadoop.util.RunJar.main(RunJar.java:136)

Caused by: java.lang.RuntimeException: Unable to instantiate

org.apache.hadoop.hive.ql.metadata.SessionHiveMetaStoreClient

at org.apache.hadoop.hive.metastore.MetaStoreUtils.newInstance(MetaStoreUtils.java:1523)

at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.(RetryingMetaStoreClient.java:86)

at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:132)

at org.apache.hadoop.hive.metastore.RetryingMetaStoreClient.getProxy(RetryingMetaStoreClient.java:104)

at org.apache.hadoop.hive.ql.metadata.Hive.createMetaStoreClient(Hive.java:3005)

at org.apache.hadoop.hive.ql.metadata.Hive.getMSC(Hive.java:3024)

…

原因：Metastore 默认存储在自带的 derby 数据库中，推荐使用 MySQL 存储 Metastore。

MySQL安装步骤请参考：Linux端安装hive及其配置

hive安装步骤请参考：Linux端安装MySQL及其配置

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