Andy Kurth created VCL-725:
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Summary: utils.pm run_command does not consistently return exit
status
Key: VCL-725
URL: https://issues.apache.org/jira/browse/VCL-725
Project: VCL
Issue Type: Bug
Components: vcld (backend)
Affects Versions: 2.3
Reporter: Andy Kurth
Assignee: Andy Kurth
Priority: Minor
Fix For: 2.3.3
utils.pm::run_command does not consistently return the correct exit status. It
often returns -1. This looks to be due to timing of when REAPER is called.
Sometimes REAPER enters its 'while waitpid' block, sometimes it doesn't.
Either way, the exit status is inconsistent.
I don't know of a benefit of entering REAPER for children of vcld child
processes. It can be bypassed by adding the following in run_command after the
process is forked:
$SIG{CHLD} = undef;
If this is added, the exit status is always correct. It is also correct if the
entire subroutine is changed to call the command via backticks.
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