https://issues.apache.org/bugzilla/show_bug.cgi?id=51916
Bug #: 51916
Summary: OutOfMemoryError remote testing with HTTPClient HC4
and JMeter 2.5
Product: JMeter
Version: 2.5
Platform: All
OS/Version: All
Status: NEW
Severity: critical
Priority: P2
Component: HTTP
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
Hi, I'm trying to run a fairly simple test plan in distributed mode and
experiencing some interesting memory consumption issues which I hope someone
can shed some light on..
The problem is regardless of how many threads I use, each of the slave
servers sees growing memory usage until they eventually run out of memory
and the jmeter-server process dies with this error:
java.lang.OutOfMemoryError: Java heap space
I am very confused by this behaviour as my understanding of the slave mode
jmeter-server is that it should be passing all data back to the master and
the JVM GCs should be taking care of the memory, sadly this is not the case.
Regardless of how many threads I use, with or without a constant timer etc..
the memory usage of the java process on each of the slaves ramps up...
Config:
1 x Master Server - Linux, GUI mode (CentOS x64)
3 x Slave Server - Linux (CentOS x64)
Test plan:
- 10,000 loops @ 5 threads
- One thread group
- Constant Timer (500ms)
- 15 HTTP Requests (using HTTP client, non ssl.)
- One listener (Aggregate report)
Any ideas?
Things I've tried:
- Simple test plans.
- Upping heap size on master + slaves to 1024
- Batch mode processing for results
- Removing all listeners
- No other test elements in use other than what I listed in the OP.
- Jmeter version: 2.5
I've tried removing all the listeners and running from NON-GUI mode with -l
from the master, this is the command I used: ./jmeter -n -r -t cli-test.jmx
-l example-log
Sadly this has made no difference and the slaves still escalate memory usage
until they eventually run out and jmeter-server OOM kills itself with
java.lang.OutOfMemoryError: Java heap space
There's something not right here, I suspect either a memory leak or failing
GC, any ideas?
nb. I am using the latest version of Java on CentOS:
java version "1.6.0_27"
Java(TM) SE Runtime Environment (build 1.6.0_27-b07)
Java HotSpot(TM) Server VM (build 20.2-b06, mixed mode)
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