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81 lines
2.2 KiB
Groff
81 lines
2.2 KiB
Groff
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.\" Title: onnode
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.\" Author:
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.\" Generator: DocBook XSL Stylesheets v1.72.0 <http://docbook.sf.net/>
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.\" Date: 06/12/2007
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.\" Manual:
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.\" Source:
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.\"
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.TH "ONNODE" "1" "06/12/2007" "" ""
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.\" disable hyphenation
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.nh
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.\" disable justification (adjust text to left margin only)
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.ad l
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.SH "NAME"
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onnode \- run commands on ctdb nodes
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.SH "SYNOPSIS"
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.HP 24
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\fBonnode NODE COMMAND ...\fR
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.SH "DESCRIPTION"
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.PP
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onnode is a utility to run commands on a specific node of a CTDB cluster, or on all nodes.
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.PP
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The NODE option specifies which node to run a command on. You can specify a numeric node number (from 0 to N\-1) or the special node 'all'.
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.PP
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The COMMAND can be any shell command. The onnode utility uses ssh or rsh to connect to the remote nodes and run the command.
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.PP
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If the COMMAND starts with a /, then the command is run via the 'at' service. Otherwise the command is run in the foreground.
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.SH "EXAMPLES"
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.PP
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The following command would show the process ID of ctdb on all nodes
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.sp
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.RS 4
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.nf
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onnode all pidof ctdbd
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.fi
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.RE
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.PP
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The following command would show the last 5 lines of log on each node, preceded by the nodes hostname
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.sp
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.RS 4
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.nf
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onnode all "hostname; tail \-5 /var/log/log.ctdb"
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.fi
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.RE
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.PP
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The following command would restart the ctdb service on all nodes.
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.sp
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.RS 4
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.nf
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onnode all service ctdb restart
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.fi
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.RE
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.SH "SEE ALSO"
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.PP
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ctdbd(1), ctdb(1),
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\fI\%http://ctdb.samba.org/\fR
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.SH "COPYRIGHT/LICENSE"
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.sp
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.RS 4
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.nf
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Copyright (C) Andrew Tridgell 2007
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Copyright (C) Ronnie sahlberg 2007
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or (at
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your option) any later version.
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This program is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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.fi
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.RE
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