[mistwang]

2011-02-22 01:38:07.004 [NOTICE] [89.241.216.*:15913-0#APVH_] No request delivery notification has been received from LSAPI process:15512, possible run away process.

This is request from another user, the request was assigned to a run away PHP process (stuck with the long MySQL query, maybe). It has to be retried with another good PHP process, it has nothing to do with the second SQL you observed.

You should only look for your IP for anything related to your test script.
If you test script return a 503 error or 408 timeout, there should be no retries.

LiteSpeed does not kill the PHP process running the long SQL, as it is dangerous, may corrupt mysql DB. So, it will run until the SQL finishes.

4.0.20 does not retry a request if it has been in process for more than 30 seconds.