For info, the actual program in which this logic appears does this:

At Start - opens a large file containing SQL statements, 1 per line.
Creates 25 threads.
Reads SQL file, and passes SQL statements to threads one at a time, using shared variables. At each line, waits for a free thread to run statement.

Each thread runs each SQL statement sent to it, and logs information (response time) in a file, one for each thread. Then signals back to Start that it's ready for another statement.

At end of file, all threads disconnect and finish, and another file is processed, as above.

The application, which worked fine until I increased the number of input files, is a test harness to measure SQL response times.

I think threads is the best way to do this...

In reply to Re^2: Too many open files error with DBD Oracle by JoeW
in thread Too many open files error with DBD Oracle by JoeW

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