MySQL locking problem
- by teehoo
I have a simple setup of a set of writers and a set of readers working with a MySQL ISAM table. The writers are only inserting rows while the readers are only checking for new rows.
OK, so I know that I don't need a lock in this situation, since I'm not modifying existing rows. However my Writers are accessing one more table that does need a lock. I piece of information seems irrelevant except for the following limitation stated in the MySQL documentation:
A session that requires locks must
acquire all the locks that it needs in
a single LOCK TABLES statement. While
the locks thus obtained are held, the
session can access only the locked
tables. For example, in the following
sequence of statements, an error
occurs for the attempt to access t2
because it was not locked in the LOCK
TABLES statement:
So to access the table I want to insert rows into, I NEED to lock it, which is causing me performance problems. Any suggestions of how to get around this?
