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User's Manual: Live Statistics< / title >
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< h1 id = "realtime-results" > 15. Real-time results< a class = "sectionlink" href = "#realtime-results" title = "Link to here" > ¶ < / a >
< / h1 >
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< p > Since JMeter 2.13 you can get real-time results sent to a backend through the
< a href = "component_reference.html#Backend_Listener" > Backend Listener< / a > using potentially any backend (JDBC, JMS, Webservice, … )
by providing a class which implements < a href = "../api/org/apache/jmeter/visualizers/backend/AbstractBackendListenerClient.html" > AbstractBackendListenerClient< / a > .< br >
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JMeter ships with:
< ul >
< li > a GraphiteBackendListenerClient which allows you to send metrics to a Graphite Backend.< br >
This feature provides:
< ul >
< li > Live results< / li >
< li > Nice graphs for metrics< / li >
< li > Ability to compare 2 or more load tests< / li >
< li > Storing monitoring data as long as JMeter results in the same backend< / li >
< li > … < / li >
< / ul >
< / li >
< li > an InfluxDBBackendListenerClient introduced in JMeter 3.2 which allows you to send metrics to an InfluxDB Backend using UDP or HTTP protocols
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This feature provides:
< ul >
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< li > Live results< / li >
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< li > Nice graphs for metrics< / li >
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< li > Ability to compare 2 or more load tests< / li >
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< li > Ability to add annotations to graphs< / li >
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< li > Storing monitoring data as long as JMeter results in the same backend< / li >
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< li > … < / li >
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< / ul >
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< / li >
< / ul >
In this document we will present the configuration setup to graph and historize the data in different backends:
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< ul >
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< li > InfluxDB setup for InfluxDBBackendListenerClient< / li >
< li > InfluxDB setup for GraphiteBackendListenerClient< / li >
< li > Grafana< / li >
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< li > Graphite< / li >
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< / ul >
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< / p >
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< div class = "subsection" >
< h2 id = "metrics" > 15.1 Metrics exposed< a class = "sectionlink" href = "#metrics" title = "Link to here" > ¶ < / a >
< / h2 >
< div class = "subsection" >
< h2 id = "metrics-threads" > 15.1.1 Thread/Virtual Users metrics< a class = "sectionlink" href = "#metrics-threads" title = "Link to here" > ¶ < / a >
< / h2 >
< p >
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Thread metrics are the following:
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< / p >
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< dl >
< dt >
< span class = "code" > < rootMetricsPrefix> test.minAT< / span >
< / dt >
< dd > Min active threads< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> test.maxAT< / span >
< / dt >
< dd > Max active threads< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> test.meanAT< / span >
< / dt >
< dd > Mean active threads< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> test.startedT< / span >
< / dt >
< dd > Started threads< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> test.endedT< / span >
< / dt >
< dd > Finished threads< / dd >
< / dl >
< / div >
< div class = "subsection" >
< h2 id = "metrics-response-times" > 15.1.2 Response times metrics< a class = "sectionlink" href = "#metrics-response-times" title = "Link to here" > ¶ < / a >
< / h2 >
< p > Response related metrics are the following:< / p >
< dl >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ok.count< / span >
< / dt >
< dd > Number of successful responses for sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .h.count< / span >
< / dt >
< dd > Server hits per seconds, this metric cumulates Sample Result and Sub results (if using Transaction Controller, "Generate parent sampler" should be unchecked)< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ok.min< / span >
< / dt >
< dd > Min response time for successful responses of sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ok.max< / span >
< / dt >
< dd > Max response time for successful responses of sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ok.avg< / span >
< / dt >
< dd > Average response time for successful responses of sampler name.< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ok.pct< percentileValue> < / span >
< / dt >
< dd > Percentile computed for successful responses of sampler name. There will be one metric for each calculated value.< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ko.count< / span >
< / dt >
< dd > Number of failed responses for sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ko.min< / span >
< / dt >
< dd > Min response time for failed responses of sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ko.max< / span >
< / dt >
< dd > Max response time for failed responses of sampler name< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ko.avg< / span >
< / dt >
< dd > Average response time for failed responses of sampler name.< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .ko.pct< percentileValue> < / span >
< / dt >
< dd > Percentile computed for failed responses of sampler name. There will be one metric for each calculated value.< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .a.count< / span >
< / dt >
< dd > Number of responses for sampler name (sum of ok.count and ko.count)< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .a.min< / span >
< / dt >
< dd > Min response time for responses of sampler name (min of ok.count and ko.count)< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .a.max< / span >
< / dt >
< dd > Max response time for responses of sampler name (max of ok.count and ko.count)< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .a.avg< / span >
< / dt >
< dd > Average response time for responses of sampler name (avg of ok.count and ko.count)< / dd >
< dt >
< span class = "code" > < rootMetricsPrefix> < samplerName> .a.pct< percentileValue> < / span >
< / dt >
< dd > Percentile computed for responses of sampler name. There will be one metric for each calculated value. (calculated on the totals for OK and failed samples)< / dd >
< / dl >
< p >
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The default < span class = "code" > percentiles< / span > setting on the < a href = "../usermanual/component_reference.html#Backend_Listener" > Backend Listener< / a > is "90;95;99",
i.e. the 3 percentiles 90%, 95% and 99%.
< / p >
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< p >
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The < a href = "http://graphite.readthedocs.io/en/latest/feeding-carbon.html#step-1-plan-a-naming-hierarchy" > Graphite naming hierarchy< / a >
uses dot (".") to separate elements. This could be confused with decimal percentile values.
JMeter converts any such values, replacing dot (".") with underscore ("-").
For example, "< span class = "code" > 99.9< / span > " becomes "< span class = "code" > 99_9< / span > "
< / p >
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< p >
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By default JMeter sends metrics for all samplers accumulated under the samplerName "< span class = "code" > all< / span > ".
If the Backend Listener < span class = "code" > samplersList< / span > is configured, then JMeter also sends the metrics
for the matching sample names unless < span class = "code" > summaryOnly=true< / span >
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< / p >
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< / div >
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< / div >
< div class = "subsection" >
< h2 id = "jmeter-configuration" > 15.2 JMeter configuration< a class = "sectionlink" href = "#jmeter-configuration" title = "Link to here" > ¶ < / a >
< / h2 >
< p >
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To make JMeter send metrics to backend add a < a href = "./component_reference.html#Backend_Listener" > BackendListener< / a > using the GraphiteBackendListenerClient.
< / p >
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< figure >
< a href = "../images/screenshots/backend_listener.png" > < img src = "../images/screenshots/backend_listener.png" width = "902" height = "341" alt = "Graphite configuration" > < / a >
< figcaption > Graphite configuration< / figcaption >
< / figure >
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< / div >
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< div class = "subsection" >
< h2 id = "influxdb_db_configuration" > 15.3 InfluxDB database configuration< a class = "sectionlink" href = "#influxdb_db_configuration" title = "Link to here" > ¶ < / a >
< / h2 >
< p > Connect to InfluxDB using < a href = "https://docs.influxdata.com/influxdb/v1.1/introduction/getting_started/" > influx shell< / a > and < a href = "https://docs.influxdata.com/influxdb/v1.1/query_language/database_management/" > create two databases< / a > :
< ul >
< li > grafana : Used by Grafana to store the dashboards we will create< / li >
< li > jmeter : Used by InfluxDB to store the data sent to Graphite Listener as per database="jmeter" config
element in < span class = "code" > influxdb.conf< / span > or < span class = "code" > config.toml< / span >
< / li >
< / ul >
< / p >
< div class = "subsection" >
< h2 id = "influxdb" > 15.3.1 InfluxDB setup for InfluxDBBackendListenerClient< a class = "sectionlink" href = "#influxdb" title = "Link to here" > ¶ < / a >
< / h2 >
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< p > InfluxDB is an open-source, distributed, time-series database that allows to
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easily store metrics.
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Installation and configuration is very easy, read this for more details < a href = "https://docs.influxdata.com/influxdb/v1.1/introduction/installation/" target = "_blank" > InfluxDB documentation< / a > .< br >
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InfluxDB data can be easily viewed in a browser through either < a href = "https://github.com/hakobera/influga" target = "_blank" > Influga< / a > or < a href = "http://grafana.org/" target = "_blank" > Grafana< / a > .
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We will use Grafana in this case.
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< b > There is no particular configuration to setup when using < span class = "code" > InfluxDBBackendListenerClient< / span > < / b >
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< / p >
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< / div >
< div class = "subsection" >
< h2 id = "influxdb_through_graphite_configuration" > 15.3.2 InfluxDB setup for GraphiteBackendListenerClient< a class = "sectionlink" href = "#influxdb_through_graphite_configuration" title = "Link to here" > ¶ < / a >
< / h2 >
< p > To enable Graphite listener in InfluxDB for < span class = "code" > GraphiteBackendListenerClient< / span > , edit files < span class = "code" > /opt/influxdb/shared/config.toml< / span > or < span class = "code" > /usr/local/etc/influxdb.conf< / span > ,
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find "< span class = "code" > [[graphite]]< / span > " and set this:
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< / p >
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< pre class = "source" >
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# Configure the graphite api
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[[graphite]]
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enabled = true
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bind-address = ":2003" # If not set, is actually set to bind-address.
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database = "jmeter" # store graphite data in this database
< / pre >
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< / div >
< / div >
< div class = "subsection" >
< h2 id = "grafana_configuration" > 15.4 Grafana configuration< a class = "sectionlink" href = "#grafana_configuration" title = "Link to here" > ¶ < / a >
< / h2 >
< p >
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Installing grafana is just a matter of putting the unzipped bundle behind an Apache HTTP server.< br >
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Read < a href = "http://grafana.org/docs/" target = "_blank" > documentation< / a > for more details.
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Open < span class = "code" > config.js< / span > file and find < span class = "code" > datasources< / span > element, and edit it like this:< br >
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< / p >
< pre class = "source" >
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datasources: {
influxdb: {
type: 'influxdb',
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url: "http://influx_db_host:8086/db/jmeter",
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username: 'root',
password: 'root',
},
grafana: {
type: 'influxdb',
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url: "http://influx_db_host:8086/db/grafana",
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username: 'root',
password: 'root',
grafanaDB: true
},
},
< / pre >
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< div class = "clear" > < / div >
< div class = "note" >
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Note that grafana has "< span class = "code" > grafanaDB:true< / span > ". Also note that here we use < span class = "code" > root< / span > user for simplicity
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It is better to dedicate a special user with restricted rights.
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< / div >
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< div class = "clear" > < / div >
Here is the kind of dashboard that you could obtain:
< figure >
< a href = "../images/screenshots/grafana_dashboard.png" > < img src = "../images/screenshots/grafana_dashboard.png" width = "1265" height = "581" alt = "Grafana dashboard" > < / a >
< figcaption > Grafana dashboard< / figcaption >
< / figure >
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< / div >
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< div class = "subsection" >
< h2 id = "graphite" > 15.5 Graphite< a class = "sectionlink" href = "#graphite" title = "Link to here" > ¶ < / a >
< / h2 >
< p > HELP WELCOME for this section, see < a href = "../building.html" > Contributing documentation< / a >
< / p >
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< / div >
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< / div >
< ul class = "pagelinks" >
< li >
< a href = "generating-dashboard.html" > < Prev< / a >
< / li >
< li >
< a href = "../index.html" > Index< / a >
< / li >
< li >
< a href = "best-practices.html" > Next > < / a >
< / li >
< / ul >
< div class = "share-links" >
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Share this page:
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< ul >
< li class = "fb" >
< a data-social-url = "https://facebook.com/sharer/sharer.php?u=" title = "Share on facebook" > < i class = "fa fa-facebook" aria-hidden = "true" > < / i > share< / a >
< / li >
< li class = "twitter" >
< a data-social-url = "https://twitter.com/intent/tweet?url=" title = "Tweet on twitter" > < i class = "fa fa-twitter" aria-hidden = "true" > < / i > tweet< / a >
< / li >
< li class = "gplus" >
< a data-social-url = "https://plus.google.com/share?url=" title = "Share on Google+" > < i class = "fa fa-google-plus" aria-hidden = "true" > < / i > share< / a >
< / li >
< / ul >
< / div >
< / div >
< div class = "footer" >
< div class = "copyright" >
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Copyright ©
1999 –
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2018
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, Apache Software Foundation
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< / div >
< div class = "trademarks" > Apache, Apache JMeter, JMeter, the Apache
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feather, and the Apache JMeter logo are
trademarks of the
Apache Software Foundation.
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< / div >
< / div >
< script > ( f u n c t i o n ( ) {
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// fill in the current location into social links on this page.
"use strict";
var as = document.getElementsByTagName('a');
var loc = document.location.href;
if (!loc.toLowerCase().startsWith('http')) {
return;
}
for (var i=0; i< as.length ; i + + ) {
var href = as[i].getAttribute('data-social-url');
if (href !== null) {
as[i].href = href + encodeURIComponent(loc);
}
}
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})();< / script >
< / body >
< / html >
