src/pmgadgets/pmgcluster.sh

   1 #!/bin/sh
   2 #
   3 # Copyright (c) 2014 Red Hat.
   4 # Copyright (c) 1995-2002 Silicon Graphics, Inc.  All Rights Reserved.
   5 #
   6 # This program is free software; you can redistribute it and/or modify it
   7 # under the terms of the GNU General Public License as published by the
   8 # Free Software Foundation; either version 2 of the License, or (at your
   9 # option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful, but
  12 # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  13 # or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14 # for more details.
  15 #
  16
  17 # This script uses pmgsys to layout gadgets for a series of hosts and then
  18 # combines the resulting config files into one big one and invokes pmgadgets
  19 # on the result.
  20
  21 # source the PCP configuration environment variables
  22 . $PCP_DIR/etc/pcp.env
  23
  24 status=1
  25 tmp=`mktemp -d /tmp/pcp.XXXXXXXXX` || exit 1
  26 trap "rm -fr $tmp; exit \$status" 0 1 2 3 15
  27 verbose="false"
  28 prog=`basename $0`
  29 nhosts=0
  30 hosts=""
  31
  32 # usage - print out the usage of program
  33 #
  34 _usage()
  35 {
  36     echo >$tmp/msg "Usage: $prog [options] [pmgadgets options] [host ...]"
  37     echo >>$tmp/msg '
  38
  39 Default hosts are specified in /etc/nodes (or /etc/ace/nodes).
  40
  41 options:
  42   -H nodes               file specifying nodes in cluster
  43                          [default $PCP_CLUSTER_CONFIG or /etc/nodes]
  44   -r rows                number of rows for layout
  45   -l                     suppress host name labels
  46   -L label               title label for pmgagdets layout
  47   -V                     verbose (print pmgadgets configuration)
  48
  49 pmgadgets(1) options:'
  50     _pmgadgets_usage | sed -e '/.*-h host.*/d' >>$tmp/msg
  51     _pmgadgets_info -f $tmp/msg
  52 }
  53
  54 # keep the original command line for restart after logout/login
  55 #
  56 echo -n "pmgadgets 1 \"pmgcluster\"" >$tmp/conf
  57 for arg
  58 do
  59     echo -n " \"$arg\"" >>$tmp/conf
  60 done
  61 echo >>$tmp/conf
  62
  63 # get arguments
  64 #
  65 . $PCP_SHARE_DIR/lib/pmgadgets-args
  66
  67
  68 # Have to pre-parse the options for -L coz getopts can't handle multiword
  69 # strings when using $otherArgs
  70 #
  71 if [ -z "$PCP_CLUSTER_CONFIG" ]
  72 then
  73     nodesfile=/etc/nodes
  74     [ ! -f "$nodesfile" ] && nodesfile=/etc/ace/nodes
  75 else
  76     nodesfile="$PCP_CLUSTER_CONFIG"
  77     if [ ! -f "$nodesfile" ]
  78     then
  79         echo "Error: \"$nodesfile\" specified in \$PCP_CLUSTER_CONFIG: file not found"
  80         _usage
  81         status=1
  82         exit
  83     fi
  84 fi
  85
  86 while [ $# -gt 0 ]
  87 do
  88     case $1
  89     in
  90         -h) hosts="$2"
  91             nhosts=1
  92             shift
  93             ;;
  94         -L) titlelabel="$2"
  95             shift
  96             ;;
  97         *)  pmgargs="$pmgargs $1"
  98             ;;
  99     esac
 100     shift
 101 done
 102 set -- $pmgargs
 103
 104 _pmgadgets_args "$@"
 105
 106 if [ -n "$otherArgs" ]
 107 then
 108     while getopts "H:r:lV?" c $otherArgs
 109     do
 110         case $c
 111         in
 112             H)  nodesfile=$OPTARG
 113                 if [ ! -f "$nodesfile" ]
 114                 then
 115                     echo "$prog Error: \"$nodesfile\" for -H file not found"
 116                     _usage
 117                     status=1
 118                     exit
 119                 fi
 120                 ;;
 121             r)  rows=$OPTARG
 122                 ;;
 123             l)  pmgsysargs="$pmgsysargs -l"
 124                 ;;
 125             V)  verbose="true"
 126                 ;;
 127             ?)  _usage
 128                 status=1
 129                 exit
 130                 ;;
 131         esac
 132     done
 133
 134     set -- $otherArgs
 135     shift `expr $OPTIND - 1`
 136 else
 137     set --
 138 fi
 139
 140 if [ "$interval" != "0" ]
 141 then
 142     args="$args -t $interval"
 143 fi
 144
 145 if [ ! -z "$titleArg" ]
 146 then
 147     args="$args -title $titleArg"
 148 fi
 149
 150 ytitle=0
 151 if [ ! -z "$titlelabel" ]
 152 then
 153     ytitle=16
 154     echo "_label 6 13 \"$titlelabel\" \"7x13bold\"" >> $tmp/conf
 155 fi
 156
 157 if [ "$nhosts" -eq 0 ]
 158 then
 159     nhosts=$#
 160     if [ $nhosts -eq 0 ]
 161     then
 162         if [ -f "$nodesfile" ]
 163         then
 164             hosts=`sed -e 's/[# ].*$//' $nodesfile`
 165             nhosts=`echo $hosts | wc -w`
 166         fi
 167     else
 168         hosts=$*
 169     fi
 170 fi
 171
 172 if [ $nhosts -eq 0 ]
 173 then
 174     _usage
 175     status=1
 176     exit
 177 fi
 178
 179
 180 ox=0
 181 oy=$ytitle
 182 row=0
 183 col=0
 184 ygap=20
 185 xgap=50
 186 xmax=0
 187 ymax=0
 188 hostnum=0
 189
 190 if [ -z "$rows" ]
 191 then
 192     rows=`echo "sqrt($nhosts)" | bc`
 193 fi
 194
 195 cols=`expr $nhosts / $rows`
 196
 197 for host in $hosts
 198 do
 199     if ! pmgsys $pmgsysargs -C -V -h $host > $tmp/pmgsys 2> $tmp/pmgsys.err
 200     then
 201         sed -e "s/pmgsys/$prog/g" $tmp/pmgsys.err >&2
 202         continue
 203     fi
 204
 205     sed -e 's/^pmgadgets/# pmgadgets/' \
 206         -e "/.*_update.*/d" \
 207         -e "s/-C//g" \
 208         -e "s/cpuActions/"$hostnum"_cpuActions/g" \
 209         -e "s/loadActions/"$hostnum"_loadActions/g" \
 210         -e "s/netActions/"$hostnum"_netActions/g" \
 211         -e "s/diskActions/"$hostnum"_diskActions/g" \
 212         -e "s/diskLegend/"$hostnum"_diskLegend/g" \
 213         -e "s/cpuColours/"$hostnum"_cpuColours/g" \
 214         -e "s/netColours/"$hostnum"_netColours/g" \
 215         -e "s/kernel\./"$host":kernel./g" \
 216         -e "s/disk\./"$host":disk./g" \
 217         -e "s/mem\./"$host":mem./g" \
 218         -e "s/swap\./"$host":swap./g" \
 219         -e "s/network\./"$host":network./g" \
 220         $tmp/pmgsys \
 221     | $PCP_AWK_PROG '
 222     /^_/ && $2 ~ /^[0-9]+$/ && $3 ~ /^[0-9]+$/ {
 223         printf "%s %d %d ", $1, $2 + '$ox', $3 + '$oy'
 224         for (i=4; i <= NF; i++)
 225             printf "%s ", $i
 226         printf "\n"
 227         next
 228     }
 229     {
 230         print
 231     }' | tee $tmp/$host >> $tmp/conf
 232
 233     #
 234     # set xmax and ymax for this host
 235     #
 236     eval `$PCP_AWK_PROG '
 237     /^_/ && $2 ~ /^[0-9]+$/ && $3 ~ /^[0-9]+$/ {
 238         if (xmax < $2)
 239             xmax = $2
 240         if (ymax < $3)
 241             ymax = $3
 242     }
 243     END {
 244         printf "host_xmax=%d; ymax=%d", xmax, ymax
 245     }' $tmp/$host`
 246
 247     [ $host_xmax -gt $xmax ] && xmax=$host_xmax
 248
 249     row=`expr $row + 1`
 250     if [ $row -eq $rows ]
 251     then
 252         row=0
 253         oy=$ytitle
 254         ox=`expr $xmax + $xgap`
 255         col=`expr $col + 1`
 256     else
 257         oy=`expr $ymax + $ygap`
 258     fi
 259
 260     rm -f $tmp/$host
 261     hostnum=`expr $hostnum + 1`
 262 done
 263
 264 rm -f $tmp/pmgsys $tmp/pmgsys.err
 265
 266 if $verbose
 267 then
 268     cat $tmp/conf
 269 fi
 270
 271 if [ $hostnum -le 0 ]
 272 then
 273     echo "$prog: unable to monitor any hosts" >&2
 274     status=1
 275     exit
 276 fi
 277
 278 eval pmgadgets $args <$tmp/conf
 279
 280 status=$?
 281 exit