Hi Felix Thank you for your response. I am using HTTP Request Sampler.
-The PUT requests are sending large amount of data (GBs) which are failing with OOM exception. I am sending User name and password as Basic auth. the configs that I modified in the HTTP PUT request sampler are -Implantation: HttpClient3.1 (4.0 did not work for me with Basic Auth). -Path (Variables based on Counter) -Send Files with the Request (path to Object in Local Directory with GB size). In the HTTP Request Default I have added 1- Server as a variable 2- Port as a Variable. So I think what is standing out from what you mentioned is the HTTP implantation. I will work on Changing that to 4.0 and see if I can see why is it failing. -The GET requests are will be receiving large amount of data (GBs) but are not working since the prerequisite above PUTs failed. Is there any memory optimization needed for GET to receive (GB) files?? thanks Ahmad > Subject: Re: Concurrent GB File PUTs causing Out of Memory > To: [email protected] > From: [email protected] > Date: Sat, 9 Jan 2016 22:15:05 +0100 > > Am 08.01.2016 um 22:23 schrieb Ahmad Alnafoosi: > > Hi > > I have a jmeter performance multi-stage test using HTTP REST API. > > The test has 10 concurrent users > > The test fails on Object Upload (PUT) that are 100MB (and larger) in size > > with Out of Memory Exception. > Which sampler did you use and what was the configuration you used in it? > Is your REST API sending back large amounts of data? > > I have tested a simple upload page with a 400 MB file and 100 concurrent > threads. The memory usage did not pass 250 MB. > > I used "HTTP Request" sampler with implementation "HttpClient4", method > "POST" and added the file in the panel "Send File With the Request:". > > Regards, > Felix > > > > > > I did some research on Jmeter Memory optimization. I did not find anything > > on the issue that I am dealing with specifically. > > > > So I followed optimization recommendations and did the following: > > 1- Removed all listeners from the test > > 2- Running from non gui command line > > 3- Saving JTL as CSV > > 4- doing all the graph and summery as post process outside the test. > > 5- Experimented and Increase heap up to 20 GB as follows > > HEAP="-Xms20g -Xmx20g" (this allowed the 100MB to pass but still failed at > > 1GB and 5GB file sizes). > > 6- I added HTTP Cache manager and enabled (Clear Cache on Each Iteration) > > and Limited (Max Number of elements in cache to 3). > > > > All of the above did not help in getting 10 concurrent users to PUT 5GB.!! > > > > Is there a way to do 10 users uploading 5GB concurrently with the default > > 512MB? > > Does Jmeter cache in its heap all of the objects that it uploads? > > What is the optimum heap size that is recommended for the above scenario?? > > > > your help is appreciated. > > > > > > thanks > > > > Ahmad > > > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] >
