进入 $hadoop_home vi conf/core-site.xml
之前的配置是hdfs://192.168.10.145:9060
但是在hive命令行下面查询一直出错：错误信息如下：
FAILED: Hive Internal Error: java.lang.RuntimeException(Error while making MR scratch directory - check filesystem config (null))
java.lang.RuntimeException: Error while making MR scratch directory - check filesystem config (null)
at org.apache.hadoop.hive.ql.Context.getMRScratchDir(Context.java:196)
at org.apache.hadoop.hive.ql.Context.getMRTmpFileURI(Context.java:247)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.getMetaData(SemanticAnalyzer.java:900)
at org.apache.hadoop.hive.ql.parse.SemanticAnalyzer.analyzeInternal(SemanticAnalyzer.java:6594)
at org.apache.hadoop.hive.ql.parse.BaseSemanticAnalyzer.analyze(BaseSemanticAnalyzer.java:238)
at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:340)
at org.apache.hadoop.hive.ql.Driver.run(Driver.java:736)
at org.apache.hadoop.hive.cli.CliDriver.processCmd(CliDriver.java:164)
at org.apache.hadoop.hive.cli.CliDriver.processLine(CliDriver.java:241)
at org.apache.hadoop.hive.cli.CliDriver.main(CliDriver.java:456)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.hadoop.util.RunJar.main(RunJar.java:156)
Caused by: java.lang.IllegalArgumentException: Wrong FS: hdfs://192.168.10.145:9060/www/tmp/hive/tmp/hive_2011-07-07_15-16-43_898_7958229762893737206, expected: hdfs://zgz-test-a:9060
at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:310)
at org.apache.hadoop.hdfs.DistributedFileSystem.checkPath(DistributedFileSystem.java:99)
at org.apache.hadoop.fs.FileSystem.makeQualified(FileSystem.java:222)
at org.apache.hadoop.hdfs.DistributedFileSystem.makeQualified(DistributedFileSystem.java:116)
at org.apache.hadoop.hive.ql.Context.getScratchDir(Context.java:146)
at org.apache.hadoop.hive.ql.Context.getMRScratchDir(Context.java:190)
... 14 more
改动后:
<property>
<name>fs.default.name</name>
<value>hdfs://zgz-test-a:9060/
</value>
<description>The name of the default file system. A URI whose
scheme and authority determine the FileSystem implementation. The
uri's scheme determines the config property (fs.SCHEME.impl) naming
the FileSystem implementation class. The uri's authority is used to
determine the host, port, etc. for a filesystem.</description>
</property>
重新启动hadoop，登录hive
