Hi,
I mentioned the same issue about 3 days ago ... the sf.net mailarchive is a
bit behind though
Franky
On 10/25/07, John Rouillard <[EMAIL PROTECTED]> wrote:
>
> Hi all:
>
> I just installed BackupPC last night and I think I have an issue with
> defunct processes caused by lack of a sigchld handler.
>
> In my process table I see:
>
> backup 7186 28665 44 13:35 ? 00:05:30 /usr/bin/perl
> /tools/BackupPC-3.1.0beta0/bin/BackupPC_dump -f hostname
>
> backup 7279 7186 0 13:35 ? 00:00:00 [ssh] <defunct>
> backup 7344 7186 0 13:35 ? 00:00:03 [BackupPC_dump]
> <defunct>
>
> backup 7822 7186 0 13:36 ? 00:00:00 [ssh] <defunct>
> backup 7831 7186 0 13:36 ? 00:00:00 [BackupPC_dump]
> <defunct>
>
> backup 7837 7186 0 13:36 ? 00:00:00 /usr/bin/ssh -q -x -l
> root hostname /usr/bin/rsync --server --sender
> --numeric-ids --perms --owner --group -D --links --hard-links --times
> --block-size=2048 --recursive --one-file-system --checksum-seed=32761
> --ignore-times . /var/log/
> backup 7848 7186 0 13:36 ? 00:00:00 /usr/bin/perl
> /tools/BackupPC-3.1.0beta0/bin/BackupPC_dump -f hostname
>
> It looks to me like the parent BackupPC_Dump (pid 7186) isn't wait(2)ing
> for the child processes when it received a SIG_CHLD. I don't see a
> child signal handler in the /tools/BackupPC-3.1.0beta0/bin/BackupPC_dump
> file either.
>
> The config that produces this is:
>
> $Conf{XferMethod} = 'rsync';
>
> $Conf{RsyncShareName} = [
> '/etc',
> '/var/bak',
> '/var/log',
> '/usr/local',
> ];
>
> So it would appear the defunct backupPC_Dump and ssh pairs are from
> the /etc and /var/bak backups and /var/log is running currently.
>
> Can anybody confirm my diagnosis and add a SIGCHLD handler, or tell
> why there shouldn't be one? Ultimately we will have some systems with
> 10 shares, and be running multiple hosts in parallel and this will
> defintely trip the zombie process monitoring that we do as well as
> looking bad and taking up space.
>
> I didn't see any mention of this fix in the 3.1.0beta1 release notes,
> so I assume the problem still exists. If people agree it's a bug, I'll
> file it on sourceforge.
>
> Some specs:
>
> OS: centos 4.2
> kernel: 2.6.9-42.0.10.ELsmp i686
> BackupPC ver: 3.1.0beta0
>
> --
> -- rouilj
>
> John Rouillard
> System Administrator
> Renesys Corporation
> 603-643-9300 x 111
>
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