mirror of
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When in verbose mode with -p, each line is prefixed with the node
address/name. To implement this stderr has redirected to stdout - this doesn't need to be done but is the simplest implementation. Remove -t option since it doesn't seem to accomplish much but causes spurious messages to be displayed by ssh. Add explicit -h and --help options. Make style of usage message consistent with documentation. Document new features in doc/onnode.1.xml. (This used to be ctdb commit 8119238d1fa672814a7591593b517c3c42859315)
This commit is contained in:
Martin Schwenke
parent
1707873296
commit
f81d0022c4
@ -1,79 +1,372 @@
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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: 07/10/2007
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.\" Manual:
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.\" Source:
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.\" Author: [FIXME: author] [see http://docbook.sf.net/el/author]
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.\" Generator: DocBook XSL Stylesheets v1.74.0 <http://docbook.sf.net/>
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.\" Date: 07/10/2008
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.\" Manual: [FIXME: manual]
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.\" Source: [FIXME: source]
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.\" Language: English
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.\"
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.TH "ONNODE" "1" "07/10/2007" "" ""
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.TH "ONNODE" "1" "07/10/2008" "[FIXME: source]" "[FIXME: manual]"
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.\" -----------------------------------------------------------------
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.\" * (re)Define some macros
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.\" -----------------------------------------------------------------
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" toupper - uppercase a string (locale-aware)
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de toupper
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.tr aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ
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\\$*
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.tr aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz
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..
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" SH-xref - format a cross-reference to an SH section
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de SH-xref
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.ie n \{\
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.\}
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.toupper \\$*
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.el \{\
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\\$*
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.\}
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..
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" SH - level-one heading that works better for non-TTY output
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de1 SH
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.\" put an extra blank line of space above the head in non-TTY output
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.if t \{\
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.sp 1
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.\}
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.sp \\n[PD]u
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.nr an-level 1
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.set-an-margin
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.nr an-prevailing-indent \\n[IN]
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.fi
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.in \\n[an-margin]u
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.ti 0
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.HTML-TAG ".NH \\n[an-level]"
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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\." make the size of the head bigger
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.ps +3
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.ft B
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.ne (2v + 1u)
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.ie n \{\
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.\" if n (TTY output), use uppercase
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.toupper \\$*
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.\}
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.el \{\
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.nr an-break-flag 0
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.\" if not n (not TTY), use normal case (not uppercase)
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\\$1
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.in \\n[an-margin]u
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.ti 0
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.\" if not n (not TTY), put a border/line under subheading
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.sp -.6
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\l'\n(.lu'
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.\}
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..
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" SS - level-two heading that works better for non-TTY output
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de1 SS
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.sp \\n[PD]u
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.nr an-level 1
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.set-an-margin
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.nr an-prevailing-indent \\n[IN]
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.fi
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.in \\n[IN]u
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.ti \\n[SN]u
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.it 1 an-trap
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.nr an-no-space-flag 1
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.nr an-break-flag 1
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.ps \\n[PS-SS]u
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\." make the size of the head bigger
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.ps +2
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.ft B
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.ne (2v + 1u)
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.if \\n[.$] \&\\$*
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..
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" BB/BE - put background/screen (filled box) around block of text
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de BB
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.if t \{\
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.sp -.5
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.br
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.in +2n
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.ll -2n
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.gcolor red
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.di BX
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.\}
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..
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.de EB
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.if t \{\
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.if "\\$2"adjust-for-leading-newline" \{\
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.sp -1
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.\}
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.br
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.di
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.in
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.ll
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.gcolor
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.nr BW \\n(.lu-\\n(.i
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.nr BH \\n(dn+.5v
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.ne \\n(BHu+.5v
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.ie "\\$2"adjust-for-leading-newline" \{\
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\M[\\$1]\h'1n'\v'+.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
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.\}
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.el \{\
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\M[\\$1]\h'1n'\v'-.5v'\D'P \\n(BWu 0 0 \\n(BHu -\\n(BWu 0 0 -\\n(BHu'\M[]
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.\}
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.in 0
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.sp -.5v
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.nf
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.BX
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.in
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.sp .5v
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.fi
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.\}
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..
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.\" BM/EM - put colored marker in margin next to block of text
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.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.de BM
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.if t \{\
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.br
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.ll -2n
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.gcolor red
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.di BX
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.\}
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..
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.de EM
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.if t \{\
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.br
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.di
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.ll
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.gcolor
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.nr BH \\n(dn
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.ne \\n(BHu
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\M[\\$1]\D'P -.75n 0 0 \\n(BHu -(\\n[.i]u - \\n(INu - .75n) 0 0 -\\n(BHu'\M[]
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.in 0
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.nf
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.BX
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.in
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.fi
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.\}
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..
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.\" -----------------------------------------------------------------
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.\" * set default formatting
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.\" -----------------------------------------------------------------
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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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.\" -----------------------------------------------------------------
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.\" * MAIN CONTENT STARTS HERE *
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.\" -----------------------------------------------------------------
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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 "Synopsis"
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.fam C
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.HP \w'\fBonnode\ [OPTION]\ \&.\&.\&.\ NODES\ COMMAND\ \&.\&.\&.\fR\ 'u
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\fBonnode [OPTION] \&.\&.\&. NODES COMMAND \&.\&.\&.\fR
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.fam
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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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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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The NODES 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\'\&. You can also specify lists of nodes, separated by commas, and ranges of numeric node numbers, separated by dashes\&. If nodes are specified multiple times then the command will be executed multiple times on those nodes\&. The order of nodes is significant\&.
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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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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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.SH "OPTIONS"
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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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\-c
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.RS 4
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Execute COMMAND in the current working directory on each node\&.
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.RE
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.PP
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\-p
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.RS 4
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Run commands in parallel on the specified nodes\&. In this mode
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.RE
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.PP
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\-q
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.RS 4
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Do not print node addresses\&. Normally, onnode prints informational node addresses if more than one node is specified\&. This overrides \-v\&.
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.RE
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.PP
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\-v
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.RS 4
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Print a node addresses even if only one node is specified\&. Normally, onnode prints informational node addresses when more than one node is specified\&.
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.RE
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.PP
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\-h, \-\-help
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.RS 4
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Show a short usage guide\&.
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.RE
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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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.if n \{\
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.RS 4
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.\}
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.fam C
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.ps -1
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.nf
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onnode all pidof ctdbd
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.if t \{\
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.sp -1
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.\}
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.BB lightgray adjust-for-leading-newline
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.sp -1
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onnode all pidof ctdbd
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.EB lightgray adjust-for-leading-newline
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.if t \{\
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.sp 1
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.\}
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.fi
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.fam
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.ps +1
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.if n \{\
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.RE
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.\}
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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 node\'s hostname
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.sp
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.if n \{\
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.RS 4
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.\}
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.fam C
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.ps -1
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.nf
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.if t \{\
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.sp -1
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.\}
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.BB lightgray adjust-for-leading-newline
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.sp -1
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onnode all "hostname; tail \-5 /var/log/log\&.ctdb"
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.EB lightgray adjust-for-leading-newline
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.if t \{\
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.sp 1
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.\}
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.fi
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.fam
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.ps +1
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.if n \{\
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.RE
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.\}
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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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.if n \{\
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.RS 4
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.\}
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.fam C
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.ps -1
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.nf
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.if t \{\
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.sp -1
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.\}
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.BB lightgray adjust-for-leading-newline
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.sp -1
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onnode all service ctdb restart
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.EB lightgray adjust-for-leading-newline
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.if t \{\
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.sp 1
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.\}
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.fi
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.fam
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.ps +1
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.if n \{\
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.RE
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.\}
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.PP
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The following command would run \&./foo in the current working directory, in parallel, on nodes 0, 2, 3 and 4\&.
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.sp
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.if n \{\
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.RS 4
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.\}
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.fam C
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.ps -1
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.nf
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.if t \{\
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.sp -1
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.\}
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.BB lightgray adjust-for-leading-newline
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.sp -1
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onnode \-c \-p 0,2\-4 \&./foo
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.EB lightgray adjust-for-leading-newline
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.if t \{\
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.sp 1
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.\}
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.fi
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.fam
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.ps +1
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.if n \{\
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.RE
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.\}
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.SH "FILES"
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.PP
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/etc/ctdb/nodes
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.RS 4
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Contains a list of each node\'s IP address or hostname\&.
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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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/etc/ctdb/onnode\&.conf
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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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If this file exists it is sourced by onnode\&. The main purpose is to allow the administrator to set $SSH to something other than "ssh"\&. In this case the \-t option is ignored\&. For example, the administrator may choose to use use rsh instead of ssh\&.
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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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\m[blue]\fB\%http://ctdb.samba.org/\fR\m[]
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.SH "COPYRIGHT/LICENSE"
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.sp
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.if n \{\
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.RS 4
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.\}
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.fam C
|
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.ps -1
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.nf
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.if t \{\
|
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.sp -1
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.\}
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.BB lightgray adjust-for-leading-newline
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.sp -1
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|
||||
Copyright (C) Andrew Tridgell 2007
|
||||
Copyright (C) Ronnie sahlberg 2007
|
||||
Copyright (C) Martin Schwenke 2008
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||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or (at
|
||||
your option) any later version.
|
||||
your option) any later version\&.
|
||||
|
||||
This program is distributed in the hope that it will be useful, but
|
||||
WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
General Public License for more details.
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE\&. See the GNU
|
||||
General Public License for more details\&.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, see http://www.gnu.org/licenses/.
|
||||
along with this program; if not, see http://www\&.gnu\&.org/licenses/\&.
|
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.EB lightgray adjust-for-leading-newline
|
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.if t \{\
|
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.sp 1
|
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.\}
|
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.fi
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.fam
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.ps +1
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.if n \{\
|
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.RE
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.\}
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@ -1,34 +1,65 @@
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<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>onnode</title><meta name="generator" content="DocBook XSL Stylesheets V1.72.0"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="onnode.1"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>onnode — run commands on ctdb nodes</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">onnode NODE COMMAND ...</code> </p></div></div><div class="refsect1" lang="en"><a name="id2490457"></a><h2>DESCRIPTION</h2><p>
|
||||
<html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>onnode</title><meta name="generator" content="DocBook XSL Stylesheets V1.74.0"></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="refentry" lang="en"><a name="onnode.1"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>onnode — run commands on ctdb nodes</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p><code class="command">onnode [OPTION] ... NODES COMMAND ...</code> </p></div></div><div class="refsect1" lang="en"><a name="id2507976"></a><h2>DESCRIPTION</h2><p>
|
||||
onnode is a utility to run commands on a specific node of a CTDB
|
||||
cluster, or on all nodes.
|
||||
</p><p>
|
||||
The NODE option specifies which node to run a command on. You
|
||||
The NODES 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'.
|
||||
node 'all'. You can also specify lists of nodes, separated by
|
||||
commas, and ranges of numeric node numbers, separated by dashes.
|
||||
If nodes are specified multiple times then the command will be
|
||||
executed multiple times on those nodes. The order of nodes is
|
||||
significant.
|
||||
</p><p>
|
||||
The COMMAND can be any shell command. The onnode utility uses
|
||||
ssh or rsh to connect to the remote nodes and run the command.
|
||||
</p><p>
|
||||
If the COMMAND starts with a /, then the command is run via the
|
||||
'at' service. Otherwise the command is run in the foreground.
|
||||
</p></div><div class="refsect1" lang="en"><a name="id2487793"></a><h2>EXAMPLES</h2><p>
|
||||
</p></div><div class="refsect1" lang="en"><a name="id2508002"></a><h2>OPTIONS</h2><div class="variablelist"><dl><dt><span class="term">-c</span></dt><dd><p>
|
||||
Execute COMMAND in the current working directory on each
|
||||
node.
|
||||
</p></dd><dt><span class="term">-p</span></dt><dd><p>
|
||||
Run commands in parallel on the specified nodes. In this
|
||||
mode
|
||||
</p></dd><dt><span class="term">-q</span></dt><dd><p>
|
||||
Do not print node addresses. Normally, onnode prints
|
||||
informational node addresses if more than one node is
|
||||
specified. This overrides -v.
|
||||
</p></dd><dt><span class="term">-v</span></dt><dd><p>
|
||||
Print a node addresses even if only one node is specified.
|
||||
Normally, onnode prints informational node addresses when
|
||||
more than one node is specified.
|
||||
</p></dd><dt><span class="term">-h, --help</span></dt><dd><p>
|
||||
Show a short usage guide.
|
||||
</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id2511603"></a><h2>EXAMPLES</h2><p>
|
||||
The following command would show the process ID of ctdb on all nodes
|
||||
</p><pre class="screen">
|
||||
onnode all pidof ctdbd
|
||||
</pre><p>
|
||||
</p><pre class="screen">
|
||||
onnode all pidof ctdbd
|
||||
</pre><p>
|
||||
The following command would show the last 5 lines of log on each
|
||||
node, preceded by the nodes hostname
|
||||
</p><pre class="screen">
|
||||
onnode all "hostname; tail -5 /var/log/log.ctdb"
|
||||
</pre><p>
|
||||
node, preceded by the node's hostname
|
||||
</p><pre class="screen">
|
||||
onnode all "hostname; tail -5 /var/log/log.ctdb"
|
||||
</pre><p>
|
||||
The following command would restart the ctdb service on all nodes.
|
||||
</p><pre class="screen">
|
||||
onnode all service ctdb restart
|
||||
</pre></div><div class="refsect1" lang="en"><a name="id2488691"></a><h2>SEE ALSO</h2><p>
|
||||
ctdbd(1), ctdb(1), <a href="http://ctdb.samba.org/" target="_top">http://ctdb.samba.org/</a>
|
||||
</p></div><div class="refsect1" lang="en"><a name="id2488704"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
|
||||
</p><pre class="screen">
|
||||
onnode all service ctdb restart
|
||||
</pre><p>
|
||||
The following command would run ./foo in the current working
|
||||
directory, in parallel, on nodes 0, 2, 3 and 4.
|
||||
</p><pre class="screen">
|
||||
onnode -c -p 0,2-4 ./foo
|
||||
</pre></div><div class="refsect1" lang="en"><a name="id2511652"></a><h2>FILES</h2><div class="variablelist"><dl><dt><span class="term">/etc/ctdb/nodes</span></dt><dd><p>
|
||||
Contains a list of each node's IP address or hostname.
|
||||
</p></dd><dt><span class="term">/etc/ctdb/onnode.conf</span></dt><dd><p>
|
||||
If this file exists it is sourced by onnode. The main
|
||||
purpose is to allow the administrator to set $SSH to
|
||||
something other than "ssh". In this case the -t option is
|
||||
ignored. For example, the administrator may choose to use
|
||||
use rsh instead of ssh.
|
||||
</p></dd></dl></div></div><div class="refsect1" lang="en"><a name="id2511691"></a><h2>SEE ALSO</h2><p>
|
||||
ctdbd(1), ctdb(1), <a class="ulink" href="http://ctdb.samba.org/" target="_top">http://ctdb.samba.org/</a>
|
||||
</p></div><div class="refsect1" lang="en"><a name="id2511704"></a><h2>COPYRIGHT/LICENSE</h2><div class="literallayout"><p><br>
|
||||
Copyright (C) Andrew Tridgell 2007<br>
|
||||
Copyright (C) Ronnie sahlberg 2007<br>
|
||||
Copyright (C) Martin Schwenke 2008<br>
|
||||
<br>
|
||||
This program is free software; you can redistribute it and/or modify<br>
|
||||
it under the terms of the GNU General Public License as published by<br>
|
||||
|
||||
@ -15,7 +15,7 @@
|
||||
|
||||
<refsynopsisdiv>
|
||||
<cmdsynopsis>
|
||||
<command>onnode NODE COMMAND ...</command>
|
||||
<command>onnode [OPTION] ... NODES COMMAND ...</command>
|
||||
</cmdsynopsis>
|
||||
</refsynopsisdiv>
|
||||
|
||||
@ -25,44 +25,127 @@
|
||||
cluster, or on all nodes.
|
||||
</para>
|
||||
<para>
|
||||
The NODE option specifies which node to run a command on. You
|
||||
The NODES 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'.
|
||||
node 'all'. You can also specify lists of nodes, separated by
|
||||
commas, and ranges of numeric node numbers, separated by dashes.
|
||||
If nodes are specified multiple times then the command will be
|
||||
executed multiple times on those nodes. The order of nodes is
|
||||
significant.
|
||||
</para>
|
||||
<para>
|
||||
The COMMAND can be any shell command. The onnode utility uses
|
||||
ssh or rsh to connect to the remote nodes and run the command.
|
||||
</para>
|
||||
<para>
|
||||
If the COMMAND starts with a /, then the command is run via the
|
||||
'at' service. Otherwise the command is run in the foreground.
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
<refsect1><title>OPTIONS</title>
|
||||
|
||||
<variablelist>
|
||||
<varlistentry><term>-c</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Execute COMMAND in the current working directory on each
|
||||
node.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry><term>-p</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Run commands in parallel on the specified nodes. In this
|
||||
mode
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry><term>-q</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Do not print node addresses. Normally, onnode prints
|
||||
informational node addresses if more than one node is
|
||||
specified. This overrides -v.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry><term>-v</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Print a node addresses even if only one node is specified.
|
||||
Normally, onnode prints informational node addresses when
|
||||
more than one node is specified.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry><term>-h, --help</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Show a short usage guide.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
<refsect1><title>EXAMPLES</title>
|
||||
<para>
|
||||
The following command would show the process ID of ctdb on all nodes
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all pidof ctdbd
|
||||
</screen>
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all pidof ctdbd
|
||||
</screen>
|
||||
|
||||
<para>
|
||||
The following command would show the last 5 lines of log on each
|
||||
node, preceded by the nodes hostname
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all "hostname; tail -5 /var/log/log.ctdb"
|
||||
</screen>
|
||||
node, preceded by the node's hostname
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all "hostname; tail -5 /var/log/log.ctdb"
|
||||
</screen>
|
||||
|
||||
<para>
|
||||
The following command would restart the ctdb service on all nodes.
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all service ctdb restart
|
||||
</screen>
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode all service ctdb restart
|
||||
</screen>
|
||||
|
||||
</refsect1>
|
||||
<para>
|
||||
The following command would run ./foo in the current working
|
||||
directory, in parallel, on nodes 0, 2, 3 and 4.
|
||||
</para>
|
||||
<screen format="linespecific">
|
||||
onnode -c -p 0,2-4 ./foo
|
||||
</screen>
|
||||
</refsect1>
|
||||
|
||||
<refsect1><title>FILES</title>
|
||||
|
||||
<variablelist>
|
||||
<varlistentry><term>/etc/ctdb/nodes</term>
|
||||
<listitem>
|
||||
<para>
|
||||
Contains a list of each node's IP address or hostname.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
|
||||
<varlistentry><term>/etc/ctdb/onnode.conf</term>
|
||||
<listitem>
|
||||
<para>
|
||||
If this file exists it is sourced by onnode. The main
|
||||
purpose is to allow the administrator to set $SSH to
|
||||
something other than "ssh". In this case the -t option is
|
||||
ignored. For example, the administrator may choose to use
|
||||
use rsh instead of ssh.
|
||||
</para>
|
||||
</listitem>
|
||||
</varlistentry>
|
||||
</variablelist>
|
||||
</refsect1>
|
||||
|
||||
<refsect1><title>SEE ALSO</title>
|
||||
<para>
|
||||
@ -73,6 +156,7 @@ onnode all service ctdb restart
|
||||
<literallayout>
|
||||
Copyright (C) Andrew Tridgell 2007
|
||||
Copyright (C) Ronnie sahlberg 2007
|
||||
Copyright (C) Martin Schwenke 2008
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
|
||||
@ -8,6 +8,8 @@
|
||||
|
||||
# Based on an earlier script by Andrew Tridgell and Ronnie Sahlberg.
|
||||
|
||||
# Copyright (C) Andrew Tridgell 2007
|
||||
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
# the Free Software Foundation; either version 3 of the License, or
|
||||
@ -26,17 +28,14 @@ prog=$(basename $0)
|
||||
usage ()
|
||||
{
|
||||
cat >&2 <<EOF
|
||||
Usage: onnode [ options ] <nodespec> <command>
|
||||
|
||||
Options:
|
||||
Usage: onnode [OPTION] ... <NODES> <COMMAND> ...
|
||||
options:
|
||||
-c Run in current working directory on all nodes.
|
||||
-p Run command in parallel on specified nodes. Implies -t.
|
||||
-t Force tty allocation on nodes. Improves buffering.
|
||||
-v Print node address even for a single node.
|
||||
-q Do not print node addresses (overrides -v).
|
||||
|
||||
<nodespec> all or a node number (0 base); or
|
||||
list (comma separated) of <nodespec>; or
|
||||
-v Print node address even for a single node.
|
||||
<NODES> "all" or a node number (0 base); or
|
||||
list (comma separated) of <NODES>; or
|
||||
range (hyphen separated) of node numbers.
|
||||
EOF
|
||||
exit 1
|
||||
@ -52,7 +51,6 @@ invalid_nodespec ()
|
||||
# Defaults.
|
||||
current=false
|
||||
parallel=false
|
||||
force_tty=false
|
||||
verbose=false
|
||||
quiet=false
|
||||
|
||||
@ -61,7 +59,7 @@ parse_options ()
|
||||
# $POSIXLY_CORRECT means that the command passed to onnode can
|
||||
# take options and getopt won't reorder things to make them
|
||||
# options ot onnode.
|
||||
temp=$(POSIXLY_CORRECT=1 getopt -n "$prog" -o "cpqtv" -- "$@")
|
||||
temp=$(POSIXLY_CORRECT=1 getopt -n "$prog" -o "chpqv" -l help -- "$@")
|
||||
|
||||
[ $? != 0 ] && usage
|
||||
|
||||
@ -70,12 +68,11 @@ parse_options ()
|
||||
while true ; do
|
||||
case "$1" in
|
||||
-c) current=true ; shift ;;
|
||||
-p) parallel=true ; force_tty=true ; shift ;;
|
||||
-p) parallel=true ; shift ;;
|
||||
-q) quiet=true ; shift ;;
|
||||
-t) force_tty=true ; shift ;;
|
||||
-v) verbose=true ; shift ;;
|
||||
--) shift ; break ;;
|
||||
*) usage ;; # Shouldn't happen, so this is reasonable.
|
||||
-h|--help|*) usage ;; # Shouldn't happen, so this is reasonable.
|
||||
esac
|
||||
done
|
||||
|
||||
@ -150,11 +147,7 @@ SSH_OPTS=
|
||||
[ -r /etc/ctdb/onnode.conf ] && . /etc/ctdb/onnode.conf
|
||||
[ -n "$SSH" ] || SSH=ssh
|
||||
if [ "$SSH" = "ssh" ] ; then
|
||||
if $force_tty ; then
|
||||
ssh_opts="-t"
|
||||
else
|
||||
ssh_opts="-n"
|
||||
fi
|
||||
ssh_opts="-n"
|
||||
else
|
||||
: # rsh? All bets are off!
|
||||
fi
|
||||
@ -179,14 +172,18 @@ trap 'kill -TERM $pids 2>/dev/null' INT TERM
|
||||
# have been added to $pids and the script is interrupted. However,
|
||||
# the part of the window where it matter is very small.
|
||||
for n in $nodes ; do
|
||||
if $verbose ; then
|
||||
echo >&2 ; echo ">> NODE: $n <<" >&2
|
||||
fi
|
||||
|
||||
if $parallel ; then
|
||||
$SSH $ssh_opts $EXTRA_SSH_OPTS $n "$command" &
|
||||
if $verbose ; then
|
||||
($SSH $ssh_opts $EXTRA_SSH_OPTS $n "$command" 2>&1 | sed -e "s@^@[$n] @" )&
|
||||
else
|
||||
$SSH $ssh_opts $EXTRA_SSH_OPTS $n "$command" &
|
||||
fi
|
||||
pids="${pids} $!"
|
||||
else
|
||||
if $verbose ; then
|
||||
echo >&2 ; echo ">> NODE: $n <<" >&2
|
||||
fi
|
||||
|
||||
$SSH $ssh_opts $EXTRA_SSH_OPTS $n "$command"
|
||||
fi
|
||||
done
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user