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I have a wired problem and have searched everywhere and can't seem to get an answer. I am running cloudera 4.6 on a single node and am using local mysql db for hive metastore database. I have many hive tables with data inside that I'm able to query using Apache HUE Hive UI. I can also run queries from command line intermittently getting a

FAILED: Error in metadata: java.lang.RuntimeException: Unable to instantiate org.apache.hadoop.hive.metastore.HiveMetaStoreClient FAILED: Execution Error, return code 1 from org.apache.hadoop.hive.ql.exec.DDLTask

about half the time. When ever I try to pass .hql to hive like below I will get above error everytime.

hive -f test.hql 

I also see this error whenever I interact with HIVE via an oozie workflow. I originally had a postgresql local metastore db that was having similar errors.

Below is my hive-site.xml. Any help to get rid of this error would be greatly appreciated.

enter code here

<xml>
<?xml version="1.0" encoding="UTF-8"?>

<!--Autogenerated by Cloudera CM on 2014-07-25T21:18:21.918Z-->
<configuration>
<property>
<name>javax.jdo.option.ConnectionURL</name>
<value>jdbc:mysql://localhost:3306/metastore?useUnicode=true&amp;characterEncoding=UTF-  8</value>
</property>
<property>
<name>javax.jdo.option.ConnectionDriverName</name>
<value>com.mysql.jdbc.Driver</value>
</property>
<property>
<name>javax.jdo.option.ConnectionUserName</name>
<value>hive</value>
</property>
<property>
<name>javax.jdo.option.ConnectionPassword</name>
<value>notmypassword</value>
</property>
<property>
<name>hive.metastore.local</name>
<value>true</value>
</property>
<property>
<name>datanucleus.autoCreateSchema</name>
<value>false</value>
</property>
<property>
<name>datanucleus.metadata.validate</name>
<value>false</value>
</property>
<property>
<name>datanucleus.fixedDatastore</name>
<value>true</value>
</property>
<property>
<name>hive.metastore.warehouse.dir</name>
<value>/data/user/hive/warehouse</value>
</property>
<property>
<name>hive.warehouse.subdir.inherit.perms</name>
<value>true</value>
</property>
<property>
<name>mapred.reduce.tasks</name>
<value>-1</value>
</property>
<property>
<name>hive.exec.reducers.bytes.per.reducer</name>
<value>1073741824</value>
</property>
<property>
<name>hive.exec.reducers.max</name>
<value>999</value>
</property>
<property>
<name>hive.metastore.execute.setugi</name>
<value>true</value>
</property>
<property>
<name>hive.support.concurrency</name>
<value>true</value>
</property>
<property>
<name>hive.zookeeper.quorum</name>
<value>els-f14847</value>
</property>
<property>
<name>hive.zookeeper.client.port</name>
<value>2181</value>
</property>
<property>
<name>hive.zookeeper.namespace</name>
<value>hive_zookeeper_namespace_hive1</value>
</property>
<property>
<name>hive.metastore.server.min.threads</name>
<value>200</value>
</property>
<property>
<name>hive.metastore.server.max.threads</name>
<value>100000</value>
</property>
<property>
<name>datanucleus.autoStartMechanism</name>
<value>SchemaTable</value>
</property>
</configuration>
</xml>
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1 回答 1

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您没有关于 DDLTask 错误的更多信息吗?在 Hue 中,它应该出现在日志选项卡的中间。

通常,当您缺少一些底层 HDFS 权限时,DDL 会失败。你在你的脚本中做一些 ALTER/CREATE 表吗?它的内容是什么?

于 2014-07-28T17:36:13.173 回答