is there any way to manage the waiting time of mysql

Question

whenever we are firing a insert query, for that point of instant that particular table is locked for a span of time. That time can be some micro seconds or some seconds depending upon the row need to be inserted in database.

I am developing an application for a university which have more than a lac of users.

I am taking care of it because last some days i am googleing it and i got the staticstics as follow

10 simple read query = 1 simple write query

The main problem is notification, whenever a teacher put some updates, i am notifying the student and only those student will get notification who are interested. So it may happen that one update may have 10000+ notification and this will definitely take 3-5 seconds (waiting time). So all reads will be in the queue.

So is there any way to get down the waiting time?

Answer 1

Maybe you could use InnoDB instead of MyISAM, as the former has a row-level-locking, whereas the latter has table-level-locking when writing. If you use InnoDB as table engine, only one row is locked, but any other contents may still get viewed.