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From Apache Wiki <wikidi...@apache.org>
Subject [Hadoop Wiki] Trivial Update of "Hive/LanguageManual/Cli" by JoydeepSensarma
Date Thu, 22 Jan 2009 16:10:31 GMT
Dear Wiki user,

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The following page has been changed by JoydeepSensarma:

  Hive uses log4j for logging. These logs are not emitted to the standard output by default
but are instead captured to a log file specified by the Hive's log4j properties file. By default
Hive will use `hive-log4j.default` in the `conf/` directory of the hive installation which
writes out logs to `/tmp/<userid>/hive.log` and uses the `WARN` level.
  It is often desirable to emit the logs to the standard output and/or change the logging
level for debugging purposes. These can be done from the command line as follows:
+ {{{ 
- {{{ $HIVE_HOME/bin/hive -hiveconf hive.root.logger=INFO,console }}}
+  $HIVE_HOME/bin/hive -hiveconf hive.root.logger=INFO,console 
+ }}}
  `hive.root.logger` specifies the logging level as well as the log destination. Specifying
`console` as the target sends the logs to the standard error (instead of the log file).
  === Hive Resources ===
@@ -90, +93 @@

  It is not neccessary to add files to the session if the files used in a transform script
are available on all machines in the hadoop cluster using the same path name. For example:
   * ... MAP a.networkid USING 'wc -l' ...: here wc is an executable available on all machines
-  * ... MAP a.networkid USING '/home/nfsserv1/hadoopscripts/tt.py' ...: here the tt.py may
be accessible via a nfs mount point that's configured similarly on all the cluster nodes.
+  * ... MAP a.networkid USING '/home/nfsserv1/hadoopscripts/tt.py' ...: here tt.py may be
accessible via a nfs mount point that's configured identically on all the cluster nodes.

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