Commands are non-SQL statement such as setting a property or adding a resource. They can be used in HiveQL scripts or directly in the CLI.
Command |
Description |
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quit |
Use quit or exit to leave the interactive shell. |
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reset |
Resets the configuration to the default values (as of Hive 0.10: see HIVE-3202). |
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set <key>=<value> |
Sets the value of a particular configuration variable (key). |
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set |
Prints a list of configuration variables that are overridden by the user or Hive. |
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set -v |
Prints all Hadoop and Hive configuration variables. |
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add FILE[S] <filepath> <filepath>* |
Adds one or more files, jars, or archives to the list of resources in the distributed cache. |
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list FILE[S] |
Lists the resources already added to the distributed cache. |
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list FILE[S] <filepath>* |
Checks whether the given resources are already added to the distributed cache or not. |
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delete FILE[S] <filepath>* |
Removes the resource(s) from the distributed cache. |
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! <command> |
Executes a shell command from the Hive shell. |
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dfs <dfs command> |
Executes a dfs command from the Hive shell. |
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<query string> |
Executes a Hive query and prints results to standard output. |
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source FILE <filepath> |
Executes a script file inside the CLI. |
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compile `<groovy string>` AS GROOVY NAMED <name> |
This allows inline Groovy code to be compiled and be used as a UDF (as of Hive 0.13.0) |
Sample Usage:
hive> set mapred.reduce.tasks=32; hive> set; hive> select a.* from tab1; hive> !ls; hive> dfs -ls;