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The "Hive/AdminManual/Configuration" page has been changed by JoydeepSensarma. http://wiki.apache.org/hadoop/Hive/AdminManual/Configuration?action=diff&rev1=14&rev2=15 -------------------------------------------------- ||hive.partition.name||The name of the hive partition. This is passed to the user scripts through the script operator.|| || ||hive.alias||The alias being processed. This is also passed to the user scripts through the script operator.|| || + === Temporary Folders === + Hive uses temporary folders both on the machine running the Hive client and the default HDFS instance. These folders are used to store per-query temporary/intermediate data sets and are normally cleaned up by the hive client when the query is finished. However, in cases of abnormal hive client termination, some data may be left behind. The configuration details are as follows: + * On the HDFS cluster this is set to ''/tmp/hive-<username>'' by default and is controlled by the configuration variable ''hive.exec.scratchdir'' + * On the client machine, this is hardcoded to ''/tmp/<username>'' + + Note that when writing data to a table/partition, Hive will first write to a temporary location on the target table's filesystem (using hive.exec.scratchdir as the temporary location) and then move the data to the target table. This applies in all cases - whether tables are stored in HDFS (normal case) or in file systems like S3 or even NFS. + + === Log Files === + Hive client produces logs and history files on the client machine. Please see [[http://wiki.apache.org/hadoop/Hive/GettingStarted#Error_Logs| Error Logs]] on configuration details. +
