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Date:      Thu, 29 Aug 2024 02:14:56 +0000
From:      bugzilla-noreply@freebsd.org
To:        ports-bugs@FreeBSD.org
Subject:   [Bug 281118] sysutils/munin-node: plugins/zfs_compress will throw an error if the label contains `.`, resulting in data loss.
Message-ID:  <bug-281118-7788@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D281118

            Bug ID: 281118
           Summary: sysutils/munin-node: plugins/zfs_compress will throw
                    an error if the label contains `.`, resulting in data
                    loss.
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: flo@FreeBSD.org
          Reporter: takefu@airport.fm
             Flags: maintainer-feedback?(flo@FreeBSD.org)
          Assignee: flo@FreeBSD.org

Created attachment 253155
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=3D253155&action=
=3Dedit
adhoc to plugins/zfs_compress

The munin-master execution log shows the following error and missing data

2024/08/29 00:00:00 [ERROR] config error under [] for
'GROUP1;finger1.north1.airport.fm:zfs_compress.zroot__ROOT__14.1-RELEASE-p1=
_2024-07-01_211548.value
1.00' : Parse error in /var/munin/datafile for
zfs_compress.zroot__ROOT__14.1-RELEASE-p1_2024-07-01_211548.value:
 Unknown keyword at end of left hand side of line 7886
(zfs_compress.zroot__ROOT__14.1-RELEASE-p1_2024-07-01_211548.value )
 at /usr/local/lib/perl5/site_perl/Munin/Master/Update.pm line 83.

# zfs get -t filesystem -H compressratio
..snip..
ZFS/ROOT/14.1-RELEASE-p1_2024-07-04_232340      compressratio   1.00x   -

# telnet localhost 4949
fetch zfs_compress
..snip..
ZFS__ROOT__14.1-RELEASE-p1_2024-07-04_232340.label
ZFS/ROOT/14.1-RELEASE-p1_2024-07-04_232340
ZFS__ROOT__14.1-RELEASE-p1_2024-07-04_232340.value 1.00

The `.` is used for internal separation, but if it is present in the label
name, munin-update will behave unexpectedly.
I tried to get around this by converting `.` to `_`.

# telnet localhost 4949
fetch zfs_compress
..snip..
ZFS__ROOT__14_1-RELEASE-p1_2024-07-04_232340.label
ZFS/ROOT/14.1-RELEASE-p1_2024-07-04_232340
ZFS__ROOT__14_1-RELEASE-p1_2024-07-04_232340.value 1.00

This is a minor change that occurs after the patch level is bumped in
freebsd-update, so I don't think there's any need to bump PORTREVISION.

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