I am facing below OutOfMemor errors, and JMeter stops working....
java.lang.OutOfMemoryError: Java heap space Dumping heap to java_pid4412.hprof ... Heap
You have to change HEAP SIZE in jmeter.bat file. First you have to convert 2GB or 6GB (OR the size which you want to put) size into mb and then save it and relaunch .bat file.
Set value for "set HEAP=-Xms512m -Xmx512m"