what is more convenient to use Jmeter or Apache benchmark as a load test for my system without crashing the system. which is easier and simple to use? I just need to know the average or maximum number of requests for the system. I'm using solar8.3.1 and nutch1.16.
Given Nutch is a web-crawler and Solr is a search platform my expectation is that you will be testing the performance of Solrs JSON Request API
ab will be "easier and simple to use" if you want just to hammer the Solr API endpoint with a fixed number of concurrent requests.
JMeter will be more convenient to use because it looks like you're about to perform a Stress Test, to wit start with 1 virtual user and ramping-up the load until response time starts exceeding acceptable or errors start occurring. Moreover JMeter has better reporting