Merge pull request #491 from brian-brazil/but-wait-theres-more

Add cassandra console.

console_libraries/menu.lib

@@ -57,6 +57,9 @@
 {{ end }}
 {{ end }}
 
+{{ if query "up{job='cassandra'}" }}
+{{ template "_menuItem" (args . "cassandra.html" "Cassandra") }}
+{{ end }}
 
 {{ if query "up{job='node'}" }}
 {{ template "_menuItem" (args . "node.html" "Node") }}

console_libraries/prom.lib

@@ -36,11 +36,11 @@ Displays the result of the expression, with a link to /graph for it.
 renderTemplate is the name of the template to use to render the value.
 */}}
 {{ define "prom_query_drilldown" }}
-{{ $expr := .arg0 }}{{ $suffix := (or .arg1 "")}}{{ $renderTemplate := (or .arg2 "__prom_query_drilldown_noop")}}
+{{ $expr := .arg0 }}{{ $suffix := (or .arg1 "") }}{{ $renderTemplate := (or .arg2 "__prom_query_drilldown_noop") }}
-<a class="prom_query_drilldown" href="{{ graphLink $expr }}">{{ with query $expr }}{{ tmpl $renderTemplate ( . | first | value ) }}{{ $suffix }}{{else}}-{{ end }}</a>
+<a class="prom_query_drilldown" href="{{ graphLink $expr }}">{{ with query $expr }}{{tmpl $renderTemplate ( . | first | value )}}{{ $suffix }}{{ else }}-{{ end }}</a>
 {{ end }}
 
-{{ define "prom_path" }}/consoles/{{ .Path }}?{{range $param, $value := .Params}}{{$param}}={{$value}}&amp;{{end}}{{ end }}"
+{{ define "prom_path" }}/consoles/{{ .Path }}?{{ range $param, $value := .Params }}{{ $param }}={{ $value }}&amp;{{ end }}{{ end }}"
 
 {{ define "prom_right_table_head" }}
 <div class="prom_console_rhs">
@@ -49,9 +49,25 @@ renderTemplate is the name of the template to use to render the value.
 {{ define "prom_right_table_tail" }}
 </table>
 </div>
-
 {{ end }}
 
+{{/* RHS table head, pass job name. Should be used after prom_right_table_head. */}}
+{{ define "prom_right_table_job_head" }}
+<tr>
+  <th>{{  .  }}</th>
+  <th>{{  template "prom_query_drilldown" (args (printf "sum(up{job='%s'})" .))  }} / {{ template "prom_query_drilldown" (args (printf "count(up{job='%s'})" .)) }}</th>
+</tr>
+<tr>
+  <td>CPU</td>
+  <td>{{  template "prom_query_drilldown" (args (printf "avg by(job)(rate(process_cpu_seconds_total{job='%s'}[5m]))" .) "s/s" "humanizeNoSmallPrefix") }}</td>
+</tr>
+<tr>
+  <td>Memory</td>
+  <td>{{  template "prom_query_drilldown" (args (printf "avg by(job)(process_resident_memory_bytes{job='%s'})" .) "B" "humanize1024") }}</td>
+</tr>
+{{ end }}
+
+
 {{ define "prom_content_head" }}
 <div class="prom_console_content">
   <div class="container">
@@ -83,7 +99,7 @@ renderTemplate is the name of the template to use to render the value.
       <button class="btn btn-default pull-left" type="button" id="prom_graph_time_forward" title="Advance the end time.">
         <i class="glyphicon glyphicon-forward"></i>
       </button>
-   </div>
+    </div>
 
     <div class="prom_graph_timecontrol_group">
       <div class="btn-group dropup prom_graph_timecontrol_refresh pull-left">

consoles/cassandra.html

@@ -0,0 +1,77 @@
+{{ template "head" . }}
+
+{{ template "prom_right_table_head" }}
+{{ template "prom_right_table_job_head" "cassandra" }}
+<tr>
+  <td>Queries</td>
+  <td>{{ template "prom_query_drilldown" (args "sum by (job)(rate(cassandra_clientrequest_latency{job='cassandra'}[5m]))" "/s" "humanizeNoSmallPrefix") }}</td>
+</tr>
+<tr>
+  <td>Timeout Ratio</td>
+  <td>{{ template "prom_query_drilldown" (args "sum by (job)(rate(cassandra_clientrequest_timeouts{job='cassandra'}[5m])) / sum by (job)(rate(cassandra_clientrequest_latency{job='cassandra'}[5m]))" "" "humanizeNoSmallPrefix") }}</td>
+</tr>
+<tr>
+  <td>Unavailable Ratio</td>
+  <td>{{ template "prom_query_drilldown" (args "sum by (job)(rate(cassandra_clientrequest_unavailables{job='cassandra'}[5m])) / sum by (job)(rate(cassandra_clientrequest_latency{job='cassandra'}[5m]))" "" "humanizeNoSmallPrefix") }}</td>
+</tr>
+<tr><th colspan="2">Internals</th></tr>
+<tr>
+  <td>Hints Inprogress</td>
+  <td>{{ template "prom_query_drilldown" (args "sum by (job)(cassandra_storage_totalhintsinprogress{job='cassandra'})" "" "humanize") }}</td>
+</tr>
+<tr>
+  <td>Blocked Tasks</td>
+  <td>{{ template "prom_query_drilldown" (args "sum by (job)(cassandra_threadpools_currentlyblockedtasks{job='cassandra'})" "" "humanize") }}</td>
+</tr>
+<tr><th colspan="2">Average Node Disk</th></tr>
+<tr>
+  <td>Compacted</td>
+  <td>{{ template "prom_query_drilldown" (args "avg by (job)(rate(cassandra_compaction_bytescompacted{job='cassandra'}[5m]))" "B/s" "humanize1024") }}</td>
+</tr>
+<tr>
+  <td>Live CF</td>
+  <td>{{ template "prom_query_drilldown" (args "avg by (job)(sum by (job, instance)(cassandra_columnfamily_totaldiskspaceused{job='cassandra'}))" "B" "humanize1024") }}</td>
+</tr>
+<tr>
+  <td>Total CF</td>
+  <td>{{ template "prom_query_drilldown" (args "avg by (job)(sum by (job, instance)(cassandra_columnfamily_totaldiskspaceused{job='cassandra'}))" "B" "humanize1024") }}</td>
+</tr>
+<tr>
+  <td>Commit Log</td>
+  <td>{{ template "prom_query_drilldown" (args "avg by (job)(cassandra_commitlog_totalcommitlogsize{job='cassandra'})" "B" "humanize1024") }}</td>
+</tr>
+{{ template "prom_right_table_tail" }}
+
+{{ template "prom_content_head" .}}
+<h1>Cassandra</h1>
+
+<h3>Client Queries</h3>
+<div id="queryGraph"></div>
+<script>
+new PromConsole.Graph({
+  node: document.querySelector("#queryGraph"),
+  expr: "sum by (job, clientrequest)(rate(cassandra_clientrequest_latency{job='cassandra'}[5m]))",
+  name: "[[clientrequest]]",
+  yAxisFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+  yHoverFormatter: PromConsole.NumberFormatter.humanizeNoSmallPrefix,
+  yUnits: "/s",
+  yTitle: "Queries"
+})
+</script>
+
+<h3>Client Latency</h3>
+<div id="latencyGraph"></div>
+<script>
+new PromConsole.Graph({
+  node: document.querySelector("#latencyGraph"),
+  expr: "sum by (job, clientrequest)(rate(cassandra_clientrequest_totallatency{job='cassandra'}[5m])) / sum by (job, clientrequest)(rate(cassandra_clientrequest_latency{job='cassandra'}[5m])) / 1000000",
+  name: "[[clientrequest]]",
+  yAxisFormatter: PromConsole.NumberFormatter.humanize,
+  yHoverFormatter: PromConsole.NumberFormatter.humanize,
+  yUnits: "s",
+  yTitle: "Latency"
+})
+</script>
+{{ template "prom_content_tail" . }}
+
+{{ template "tail" }}

consoles/index.html.example

@@ -25,6 +25,10 @@
   <td>CloudWatch Exporter</td>
   <td><code>cloudwatch</code></td>
 </tr>
+<tr>
+  <td>Cassandra (JMX Exporter)</td>
+  <td><code>cassandra</code></td>
+</tr>
 </table>
 
 {{ template "prom_content_tail" . }}