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Cmd_plasma_convert



plasma_convert - convert between file formats (map/reduce context)

Synopsis

plasma_convert [options] -in-format <name> infile [-out-format <name> outfile]

List of options:

  -cluster <name>           Set the cluster name
  -namenode <host>:<port>   Also use this namenode (can be given several times)
  -in-format <name>         Set the format of the input
  -out-format <name>        Set the format of the output
  -bigblock <n>             Set the bigblock size
  -repl <n>                 Set the replication factor of the output explicitly
  -print                    Print the records to stdout

Description

The command reads a file containing a sequence of records in a given format, and optionally writes a new file with the same sequence in a different format.

If no output is requested, the input file is just checked for correctness.

Both the input and output files must reside in PlasmaFS.

Formats

The following formats are understood:

  • text: Text format
  • var: Variable-size format
  • fixed:N Fixed-size format (with size N as integer)
The details of the formats are described in Plasmamr_file_formats.
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