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Re^2: No child processes - system limit?

by clinton (Priest)
on Apr 01, 2010 at 17:01 UTC ( #832344=note: print w/replies, xml ) Need Help??

in reply to Re: No child processes - system limit?
in thread No child processes - system limit?

Yes - in the parent process, I'm reading 5000 records from a source, then forking off a child to reindex each of those 5000 records. The parent forks $max_kids processes, recording the PIDs in a hash, then waits until there are fewer than $max_kids active.

My reaper looks like this:

#=================================== sub _REAPER { #=================================== my $params = shift; foreach my $pid ( keys %Children ) { my $res = waitpid( $pid, WNOHANG ); if ( $res > 0 ) { $Children{$pid} = 0; die "Error in child" if $?; } } $SIG{'CHLD'} = \&_REAPER; }

Note, in the reaper, I set $Children{$pid} = 0 instead of deleting the key, as that was causing panic: freed scalar errors. I now clean up the %Children hash in the main loop of the parent.

The error I'm seeing is at the stage in the parent when I'm reading the 5,000 records from the source



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