https://bz.apache.org/bugzilla/show_bug.cgi?id=60731
Bug ID: 60731
Summary: OOM on BackendListener with TIME box mode
Product: JMeter
Version: Nightly (Please specify date)
Hardware: PC
Status: NEW
Severity: blocker
Priority: P2
Component: Main
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
The BackendListener stock all datas in a DescriptiveStatistics metrics
(okResponsesStats, koResponsesStats, allResponsesStats ).
With the TIME box mode (i.e backend_metrics_window_mode=timed ), these datas
are reset on each interval of time ( default 5 sec for influxdb )
But when the load is heavy, we could stock a lot of datas during this interval
of time which can lead to a OutOfMemoryError.
Example :
2017/02/13 19:36:11 ERROR - jmeter.JMeter: Uncaught exception:
java.lang.OutOfMemoryError: Java heap space
at
org.apache.commons.math3.util.ResizableDoubleArray.expand(ResizableDoubleArray.java:697)
at
org.apache.commons.math3.util.ResizableDoubleArray.addElement(ResizableDoubleArray.java:442)
at
org.apache.commons.math3.stat.descriptive.DescriptiveStatistics.addValue(DescriptiveStatistics.java:171)
at
org.apache.jmeter.visualizers.backend.SamplerMetric.add(SamplerMetric.java:99)
at
org.apache.jmeter.visualizers.backend.influxdb.InfluxdbBackendListenerClient.handleSampleResults(InfluxdbBackendListenerClient.java:258)
at
org.apache.jmeter.visualizers.backend.BackendListener.sendToListener(BackendListener.java:270)
at
org.apache.jmeter.visualizers.backend.BackendListener$Worker.run(BackendListener.java:242)
2017/02/14 01:05:20 ERROR -
jmeter.visualizers.backend.influxdb.HttpMetricsSender: failed to send data to
influxDB server : null
To counter this, even in time box mode, we have to put a default sliding size.
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