In my experience,
the main problem is that Jmeter tries to keep all the response in memory, in order to support content validation (e..g. reg exp
matching etc.).
This obviously doesn't work for very large file like yours is.
The only work around I found was using an OS sampler + wget command.
Not the simplest thing, not always applicable, but in my case it worked out.
ciao
Il 13/01/2015 17.35, Colin Freas ha scritto:
Oh man. I swear I read the HTTP request docs, or I thought I did. But
there it is:"Save response as MD5 hash? | If this is selected, then the
response is not stored in the sample result. Instead, the 32 character MD5
hash of the data is calculated and stored instead. This is intended for
testing large amounts of data."
Thanks so much!
-Colin
On Tue, Jan 13, 2015 at 11:19 AM, sebb <[email protected]> wrote:
On 13 January 2015 at 03:00, Colin Freas <[email protected]> wrote:
I'm testing a REST call that streams data back in a response. JMeter
works
fine with small files, but when I stream a 4gb file, it just chokes,
every
time: "ERROR - jmeter.threads.JMeterThread: Test failed!
java.lang.OutOfMemoryError: Requested array size exceeds VM limit"
Some troubleshooting I have already tried:
* modified the heap to 6gb (running on a MBP with 16gb)
* running headless
* no listeners
These tests are just for throughput and performance. I don't need a
single
byte from the response. My first thought is to just tell JMeter to
discard
it. Is there a way to do that?
Yes, select "Save response as MD5 hash?"
http://jmeter.apache.org/usermanual/component_reference.html#HTTP_Request
If there's a different approach here, I'm open to ideas. Really any
suggestions appreciated!
Thanks,
Colin
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