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I have analysed that Jmeter is reading data from csv file in sequential order only(from row 1 to end of line) but I wonder how Blazemeter will read values from csv file! Whether sequential or random order?

I am experiencing multiple login detected during login activity request performed via Blazemeter.

Can any one help me on this?

Das Prakash
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1 Answers1

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In general BlazeMeter reads CSV files just exactly standalone JMeter does.

If you use > 1 JMeter engines it might be the case when 2 engines sending the same username/password combination. If this is something you would like to avoid you could use ${__P(InstanceID)} property as CSV file prefix or postfix so different JMeter engines could use different CSV files.

See How To Setup A Different CSV File For Each JMeter Engine? article for more details.

Dmitri T
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    Hi Dmitri, Thanks. I use only one engine in Blazemeter and I am sure all the records are unique in my csv file but still I see multiple login errors. – Das Prakash Jun 09 '16 at 16:32
  • I would suggest either sharing your test plan or contacting BlazeMeter support as the options could be numerous. The most obvious is: if you have multiple iterations and don't clear cookies in-between there might be sessions clash. If you're using [HTTP Cookie Manager](https://www.blazemeter.com/blog/using-http-cookie-manager-jmeter-not-cookie-jar) - make sure you're clearing cookies each Thread Group loop. – Dmitri T Jun 09 '16 at 18:27