Grant Sohn created MAPREDUCE-6807: ------------------------------------- Summary: mapred pipes usage is non-standard and redundant Key: MAPREDUCE-6807 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6807 Project: Hadoop Map/Reduce Issue Type: Bug Components: client, mrv1 Affects Versions: 2.6.0 Reporter: Grant Sohn Priority: Trivial
Running "mapred pipes" returns: {noformat} bin/hadoop pipes [-input <path>] // Input directory [-output <path>] // Output directory [-jar <jar file> // jar filename [-inputformat <class>] // InputFormat class [-map <class>] // Java Map class [-partitioner <class>] // Java Partitioner [-reduce <class>] // Java Reduce class [-writer <class>] // Java RecordWriter [-program <executable>] // executable URI [-reduces <num>] // number of reduces [-lazyOutput <true/false>] // createOutputLazily {noformat} No Hadoop CLI uses // comments in the help. Most of them follow the pattern similar to UNIX/Linux man page styling: {noformat} usage: CMD OPTIONS OPTIONS/SUBCMD-BLOCK OPTION/SUBCMD-DEFINITION-BLOCK {noformat} It should be look like this since the comments are really redundant: {noformat} usage: bin/mapred pipes [-input <path>] [-output <path>] [-jar <jar file>] [-inputformat <class>] [-map <class>] [-partitioner <class>] [-reduce <class>] [-writer <class>] [-program <executable URI>] [-reduces <num>] [-lazyOutput <true/false>] {noformat} then the parameters can be expanded upon in the section below. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org