https://issues.apache.org/bugzilla/show_bug.cgi?id=51918
Bug #: 51918
Summary: GZIP compressed traffic produces errors, when multiple
connections allowed
Product: JMeter
Version: 2.5
Platform: All
Status: NEW
Severity: normal
Priority: P2
Component: Main
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
We are testing against a Glassfish App connected to an Apache Server via
mod_jk. SSL is in place.
Tests against the server are as expected until we enable mod_deflate on the
server. Afterwards we completely randomly get error response when collecting
the page fragments.
It seems that the gzipper is not able to decompress the http response. We just
see the error (in the http response window in the "View Result Tree" report):
java.io.IOException: Corrupt GZIP trailer
at java.util.zip.GZIPInputStream.readTrailer(GZIPInputStream.java:203)
at java.util.zip.GZIPInputStream.read(GZIPInputStream.java:94)
at java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
at java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
at java.io.BufferedInputStream.read(BufferedInputStream.java:317)
at java.io.FilterInputStream.read(FilterInputStream.java:90)
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase.readResponse(HTTPSamplerBase.java:1541)
at
org.apache.jmeter.protocol.http.sampler.HTTPAbstractImpl.readResponse(HTTPAbstractImpl.java:236)
at
org.apache.jmeter.protocol.http.sampler.HTTPJavaImpl.readResponse(HTTPJavaImpl.java:286)
at
org.apache.jmeter.protocol.http.sampler.HTTPJavaImpl.sample(HTTPJavaImpl.java:518)
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerProxy.sample(HTTPSamplerProxy.java:62)
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase$ASyncSample.call(HTTPSamplerBase.java:1674)
at
org.apache.jmeter.protocol.http.sampler.HTTPSamplerBase$ASyncSample.call(HTTPSamplerBase.java:1659)
at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
at java.util.concurrent.FutureTask.run(FutureTask.java:138)
at
java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
at java.lang.Thread.run(Thread.java:662)
No further notice in the jmeter.log.
Original setting:
- 10 Threads with the option to open 5 sub connections
- 3-4 sec think time
- 50 repeats
- Client HTTP 3.1
We tried to play with the settings until we knew that the only thing that stops
the error is to deny the sub connections.
It kind of seems that something connected to the gzip decompression of the
resonse stumbles from time to time. The error seems to be completely random.
Somtimes neatly distributed, sometimes packed at so time in the test -
sometimes a lot - sometimes only one error. But never in the main request -
always in a sub request.
I can provide the test-script if needed and give out some further details about
the apache config, if needed.
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