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continue replication on more critical errors

This commit is contained in:
Christoph Klaffl 2018-07-30 22:53:48 +02:00
parent 63eec4994c
commit 9668567a87
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GPG Key ID: FC1C525C2A47CC28
1 changed files with 17 additions and 3 deletions
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syncoid
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@ -233,6 +233,10 @@ sub syncdataset {
if (!defined $args{'no-sync-snap'}) {
# create a new syncoid snapshot on the source filesystem.
$newsyncsnap = newsyncsnap($sourcehost,$sourcefs,$sourceisroot);
if (!$newsyncsnap) {
# we already whined about the error
return 0;
}
} else {
# we don't want sync snapshots created, so use the newest snapshot we can find.
$newsyncsnap = getnewestsnapshot($sourcehost,$sourcefs,$sourceisroot);
@ -267,6 +271,11 @@ sub syncdataset {
}
my $oldestsnap = getoldestsnapshot(\%snaps);
if (! $oldestsnap) {
if (defined ($args{'no-sync-snap'}) ) {
# we already whined about the missing snapshots
return 0;
}
# getoldestsnapshot() returned false, so use new sync snapshot
if ($debug) { print "DEBUG: getoldestsnapshot() returned false, so using $newsyncsnap.\n"; }
$oldestsnap = $newsyncsnap;
@ -752,7 +761,7 @@ sub getoldestsnapshot {
# must not have had any snapshots on source - luckily, we already made one, amirite?
if (defined ($args{'no-sync-snap'}) ) {
# well, actually we set --no-sync-snap, so no we *didn't* already make one. Whoops.
die "CRIT: --no-sync-snap is set, and getoldestsnapshot() could not find any snapshots on source!\n";
warn "CRIT: --no-sync-snap is set, and getoldestsnapshot() could not find any snapshots on source!\n";
}
return 0;
}
@ -774,6 +783,7 @@ sub getnewestsnapshot {
# we also probably need an argument to mute this WARN, for people who deliberately exclude
# datasets from recursive replication this way.
warn "WARN: --no-sync-snap is set, and getnewestsnapshot() could not find any snapshots on source for current dataset. Continuing.\n";
if ($exitcode < 2) { $exitcode = 2; }
}
return 0;
}
@ -961,8 +971,12 @@ sub newsyncsnap {
my %date = getdate();
my $snapname = "syncoid\_$identifier$hostid\_$date{'stamp'}";
my $snapcmd = "$rhost $mysudocmd $zfscmd snapshot $fsescaped\@$snapname\n";
system($snapcmd) == 0
or die "CRITICAL ERROR: $snapcmd failed: $?";
system($snapcmd) == 0 or do {
warn "CRITICAL ERROR: $snapcmd failed: $?";
if ($exitcode < 2) { $exitcode = 2; }
return 0;
};
return $snapname;
}