netdata.start

   1 #!/bin/bash
   2
   3 base="`dirname "$0"`"
   4
   5 if [ ! -d "$base" -o ! -f "$base/netdata.c" ]
   6 then
   7         echo >&2 "Cannot find my home directory '${base}'."
   8         exit 1
   9 fi
  10 cd "$base" || exit 1
  11
  12 # every how many seconds to show the graphs
  13 NETDATA_CONFIG_UPDATE_EVERY=2
  14
  15 # the detail of the data that will be kept in netdata
  16 NETDATA_CONFIG_INTERNAL_UPDATE_EVERY=1
  17
  18 # how many points should the graphs have
  19 NETDATA_CONFIG_HISTORY_POINTS=120
  20
  21 # how many points should be kept in memory
  22 NETDATA_CONFIG_HISTORY_DATA=3600
  23
  24 # every how many graph refreshes, the page should be reloaded
  25 # this fixes a bug in the google graphs API which leaks memory
  26 # when refreshes graphs
  27 NETDATA_CONFIG_RELOAD_EVERY=500
  28
  29 if [ -f netdata.conf ]
  30 then
  31         source netdata.conf
  32 fi
  33
  34 # how many history lines to keep in netdata
  35 NETDATA_HISTORY_LINES=$[NETDATA_CONFIG_UPDATE_EVERY * NETDATA_CONFIG_HISTORY_POINTS / NETDATA_CONFIG_INTERNAL_UPDATE_EVERY]
  36
  37 echo "Creating a directory for netdata..."
  38 data=
  39 for x in /run/netdata /var/run/netdata /tmp/netdata
  40 do
  41         echo "  Trying '${x}'..."
  42         if [ ! -d "${x}" ]
  43         then
  44                 mkdir "${x}" 2>/dev/null
  45                 if [ $? -eq 0 ]
  46                 then
  47                         echo "  OK. '${x}' works."
  48                         data="${x}"
  49                         break
  50                 fi
  51         else
  52                 echo "  OK. '${x}' works."
  53                 data="${x}"
  54                 break
  55         fi
  56 done
  57
  58 if [ -z "${data}" ]
  59 then
  60         echo >&2 "Cannot find where to put netdata files."
  61         exit 1
  62 fi
  63
  64 if [ -h data ]
  65 then
  66         echo "Removing existing $base/data link"
  67         rm data || exit 1
  68 fi
  69
  70 if [ ! -d data ]
  71 then
  72         echo "Linking '${data}' to $base/data"
  73         ln -s "${data}" data || exit 1
  74 else
  75         echo >&2 "Directory $base/data already exists. Not touching it, however it should be a link '${data}'."
  76 fi
  77
  78 cp "${base}/all.xsl" "${data}/"
  79 cp "${base}/netdata.js" "${data}/"
  80 cp "${base}/tc-all.sh" "${data}/"
  81 chmod 700 "${data}/tc-all.sh"
  82
  83 echo "Finding proper parameters for dashboard..."
  84
  85 echo "Stopping a (possibly) running netdata..."
  86 killall netdata 2>/dev/null
  87 killall tc-all.sh 2>/dev/null
  88
  89 sleep 2
  90
  91 echo "Compiling netdata"
  92 # gcc -Wall -O3 -o netdata netdata.c -lpthread || exit 1
  93 gcc -Wall -ggdb -o netdata netdata.c -lpthread || exit 1
  94
  95 echo "Starting netdata"
  96 p=`pwd`
  97 cd data
  98 ulimit -c unlimited
  99 $p/netdata -d -u $NETDATA_CONFIG_INTERNAL_UPDATE_EVERY -l $NETDATA_HISTORY_LINES || exit 1
 100 cd "$p"
 101
 102 sleep 2
 103
 104 # count all graphs
 105 all=`wget http://127.0.0.1:19999/list -O - 2>/dev/null`
 106 count=0
 107 for x in $all
 108 do
 109         y=`echo "$x" | tr ".-" "__"`
 110         eval "t=\${NETDATA_PRIORITY_${y}}"
 111         if [ ! "$t" = "IGNORE" ]
 112         then
 113                 count=$[count + 1]
 114         fi
 115 done
 116
 117 echo "We have $count graphs..."
 118
 119 echo "Generating ${data}/index.html"
 120 host="`hostname`"
 121 cat >${data}/index.html <<EOF
 122 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 123 <html xmlns="http://www.w3.org/1999/xhtml">
 124 <style>
 125         * {font-family:Arial}
 126         div {float: left; margin: 0 0 0 0; }
 127 </style>
 128 <title>${host} netdata</title>
 129 <head>
 130         <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 131
 132         <!--Load the AJAX API-->
 133         <script type="text/javascript" src="https://www.google.com/jsapi"></script>
 134         <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
 135         <script type="text/javascript" src="/file/netdata.js"></script>
 136         <script type="text/javascript">
 137
 138         // Set a callback to run when the Google Visualization API is loaded.
 139         google.setOnLoadCallback(drawCharts);
 140
 141         function drawCharts() {
 142                 // EDIT: add one line per interface you have
 143                 // EDIT:
 144                 // EDIT:   name    div id                    json data           graph                                  vertical axis title
 145                 // EDIT: --------------------------------------------------------------------------------------------------
 146 EOF
 147
 148 for x in $all
 149 do
 150         y=`echo "$x" | tr ".-" "__"`
 151
 152         title=
 153         vtitle=
 154         case "$x" in
 155                 net.*)
 156                         title="Network Usage for "
 157                         vtitle="bandwidth in kilobits/s"
 158                         ;;
 159
 160                 disk.*)
 161                         title="Disk I/O for "
 162                         vtitle="I/O in kilobytes/s"
 163                         ;;
 164
 165                 tc.*)
 166                         title="Class utilization for "
 167                         vtitle="bandwidth in kilobits/s"
 168                         ;;
 169
 170         esac
 171
 172         eval "NETDATA_TITLE_${y}=\${NETDATA_TITLE_${y}:-${x}}"
 173         eval "t=\${NETDATA_TITLE_${y}}"
 174
 175         eval "p=\${NETDATA_PRIORITY_${y}}"
 176         if [ ! "$p" = "IGNORE" ]
 177         then
 178                 cat >>${data}/index.html <<EOF2
 179                 addChart('${x}', '${y}_div', 0, 0, "data/${x}/${NETDATA_CONFIG_HISTORY_POINTS}/${NETDATA_CONFIG_UPDATE_EVERY}/average/", "${title}${t} (${x})", "${vtitle}");
 180 EOF2
 181         fi
 182 done
 183
 184 cat >>${data}/index.html <<EOF3
 185                 refreshCharts(999999);
 186         }
 187
 188         var refreshCount = 0;
 189         function myChartsRefresh() {
 190                 refreshCount += 2;
 191                 if(refreshCount > $NETDATA_CONFIG_RELOAD_EVERY) location.reload();
 192
 193                 // refresh up to 2 charts per second
 194                 refreshCharts(2);
 195         }
 196
 197         setInterval(myChartsRefresh, 1000);
 198
 199         //window.onresize = function(event) {
 200         //      refreshCharts(999999);
 201         //};
 202         </script>
 203
 204         </head>
 205
 206 <body>
 207         <!--
 208                 EDIT: add one div per interface you have
 209                 EDIT: use the same id above and bellow!
 210         -->
 211 EOF3
 212
 213 tmp="/tmp/$RANDOM.netdata.$$.$RANDOM"
 214 for x in $all
 215 do
 216         y=`echo "$x" | tr ".-" "__"`
 217         eval "NETDATA_PRIORITY_${y}=\${NETDATA_PRIORITY_${y}:-${x}}"
 218         eval "t=\${NETDATA_PRIORITY_${y}}"
 219         if [ ! "$t" = "IGNORE" ]
 220         then
 221                 echo "${t}|${y}"
 222         fi
 223 done >"${tmp}"
 224
 225 for x in `cat "${tmp}" | sort`
 226 do
 227         n="`echo "$x" | cut -d '|' -f 2-`"
 228         cat >>${data}/index.html <<EOF4
 229         <div id="${n}_div"></div>
 230 EOF4
 231 done
 232 rm -f "${tmp}"
 233
 234 cat >>${data}/index.html <<EOF5
 235  </body>
 236 </html>
 237 EOF5
 238
 239 set|grep ^NETDATA_ >netdata.conf
 240
 241 if [ ! -h "${data}/data" ]
 242 then
 243         cd "${data}"
 244         ln -s . data
 245 fi
 246
 247 echo "All Done."
 248 echo "Just hit http://127.0.0.1:19999/ from your browser."
 249