Question:
My application that runs against InterBase 5 throws an exception 'sql code -104, lock manager out of room'. How can I increase the lock space?
Answer:
Go to the interbase/bin directory (Windows) or /usr/interbase (Unix) and locate the configuration file isc_config. By default your configuration file will look like this:
#V4_LOCK_MEM_SIZE 98304
#ANY_LOCK_MEM_SIZE 98304
#V4_LOCK_SEM_COUNT 32
#ANY_LOCK_SEM_COUNT 32
#V4_LOCK_SIGNAL 16
#ANY_LOCK_SIGNAL 16
#V4_EVENT_MEM_SIZE 32768
#ANY_EVENT_MEM_SIZE 32768
I increased the V4_LOCK_MEM_SIZE entry from 98304 to 198304 and things were fine then.
!!! Important: !!!
By default all lines in the config file are commented out with the leading # sign. Make sure to remove the # sign in any line that you change - the default config file just shows the default parameters.