When will attended 5 user at same time automatically Apache service stopped and same time server cpu usage status is 100% . getting following apache log
[Tue Apr 15 16:01:06 2014
] [notice] EACCELERATOR(5592): PHP crashed on opline 5 of close() at E:\MOODLE\server\moodle\lib\dml\mysqli_native_moodle_recordset.php:82
[Tue Apr 15 16:01:08 2014] [crit] Parent: child process exited with status 3 -- Aborting.