Configuring file descriptors databases
create one file per table or index. Some operating systems limit the number
of files an application can open at one time.File descriptorsconfiguring to run DerbyIOExceptionsindicating need to relax file descriptors
limit
If the default is a low number, such as 64, you might run into unexpected IOExceptions (wrapped
in SQLExceptions). If your operating system lets you
configure the number of file descriptors, set this number to a higher value.