PIDcheck

Periodically kill Interchange child processes, allowing then to respawn afresh.

Synopsis

The parameter is expected to be a time interval.  The default is 0 (disabled).

Scope

This directive is only available for use in the global (interchange.cfg) configuration file, and will affect all websites running under the Interchange installation.  It will not work in a website's local (catalog.cfg) configuration file. 

Description

If non-zero, this directive enables a check of running Interchange processes during the HouseKeeping routine.  If a process has been running (or is hung) for longer than PIDcheck seconds then a "kill -9" will be issued and the server count will be decremented.  The number of available servers will be recounted, with the count based upon the number of PID files, during the HouseKeeping routine.

If a process is killed by Interchange, using this facility, then the incident will be logged to the global "error.log" file, as follows:

If you have long-running database builds or imports etc., this needs to be disabled (set to 0) or set to a high value (perhaps 600, for 10 minutes).

You should also take a look at the ChildLife global configuration directive.

Examples

You may specify the time in seconds: 

You may also specify the time using an Interchange time interval string: 

The check may be disabled (which is the default anyway) like this: