#FORMAT plain hopen(1) HADOOP hopen(1)
NAME
hopen - open a TaskTracker to accept new tasks.
SYNOPSIS
hopen [-h] [-jt jt1;jt2..] HOSTNAME
DESCRIPTION
Open the TaskTracker specified by HOSTNAME. After re-opened, it will
then accept new MAP/REDUCE tasks.
-h
Display usage information
-jt jobtracker url link
Specify the cluster by the jobtracker url link, for example.
-jt hostA:3479;hostB:3479 EXAMPLE
% hhosts
HOST STATUS MAX MAP REDUCE FAILURE TMP_SPACE
c0101 ok 8 0 0 0 203M
c0102 closed 8 0 0 0 553M
% hopen c0102
Host <c0102> will be open, please confirm by hhosts/hload
% hhosts
HOST STATUS MAX MAP REDUCE FAILURE TMP_SPACE
c0101 ok 8 0 0 0 203M
c0102 ok 8 0 0 0 553M AUTHOR
Written by Shuguang Liu
REPORT BUGS
Report bugs to <honkliu@hotmail.com>
COPYRIGHT
Copyright (C) 2005-2010 Shuguang Liu's Inc.
This file is not a free software, all the source codes are protected
and will not be released to any body or organization without
authority.
SEE ALSO
hclose(1), hslot(1), hhosts(1), hload(1)
hopen (hadoop utils) 13.0 September 2007