Thanks, that was fast!
# patch /usr/local/bin/zfs-snapshot-mgmt zfs-snapshot-mgmt.patch
Hmm... Looks like a unified diff to me...
The text leading up to this was:
--------------------------
|--- zfs-snapshot-mgmt 2010-06-02 05:31:28.759931924 +0300
|+++ zfs-snapshot-mgmt 2010-06-01 01:49:46.665034414 +0300
--------------------------
Patching file /usr/local/bin/zfs-snapshot-mgmt using Plan A...
patch: **** malformed patch at line 12: @name).readlines.collect.select {
|item| item[0, @name.length + 1] == @name +
OK, so that didn´t go that well. Manually editing the script to what I think
you ment:
/usr/local/bin/zfs-snapshot-mgmt:
# def snapshots(prefix)
# path = File.join(@mount_point, '.zfs', 'snapshot')
# Dir.open(path).select do |name|
# name[0, prefix.length] == prefix
# end.map { |name| SnapshotInfo.new(name, @name, prefix) }
# end
# path = File.join(@mount_point, '.zfs', 'snapshot')
# Dir.open(path).select do |name|
s = IO.popen('zfs list -r -t snapshot -H -o name
'@name).readlines.collect.select { |item| item[0, @name.length + 1] == @name
'@' }.map { |item| item[@name.length + 1 .. -1] }
s.select do |name|
name[0, prefix.length] == prefix
end.map { |name| SnapshotInfo.new(name, @name, prefix) }
end
But recieves from cron:
/usr/local/bin/zfs-snapshot-mgmt:138: syntax error, unexpected tIVAR, expecting
')'
... -t snapshot -H -o name '@name).readlines.collect.select { |...
^
/usr/local/bin/zfs-snapshot-mgmt:138: syntax error, unexpected tSTRING_BEG,
expecting '}'
..., @name.length + 1] == @name '@' }.map { |item| item[@name.l...
^
/usr/local/bin/zfs-snapshot-mgmt:188: syntax error, unexpected kEND, expecting
$end
/Karli
29 jun 2012 kl. 01.20 skrev Andriy Gapon:
on 28/06/2012 11:16 Karli Sjöberg said the following:
Hi!
I am a storage-technician working at the Swedish University of Agriculture and
we are using zfs-snapshot-mgmt to create scheduled snapshots, but are failing
on our disaster-recovery machine because of:
/usr/local/bin/zfs-snapshot-mgmt:130:in `join': can't convert nil into String
(TypeError)
from /usr/local/bin/zfs-snapshot-mgmt:130:in `snapshots'
from /usr/local/bin/zfs-snapshot-mgmt:137:in `snapshots_to_remove'
from /usr/local/bin/zfs-snapshot-mgmt:145:in `remove_snapshots'
from /usr/local/bin/zfs-snapshot-mgmt:213
from /usr/local/bin/zfs-snapshot-mgmt:210:in `each'
from /usr/local/bin/zfs-snapshot-mgmt:210
Now, since this is a disaster-recovery unit, I would rather not have to have
all filesystems mounted for the script to function as we have many servers with
many file systems backing up towards this unit, which would result in quite
alot of mounts that are completely unnecessary to the backup server itself. I
also consider it a potential security risk having all these file systems, from
all of these different machines mounted in the same place(server). I mean, if
someone would like to steal as much valuable data as possible, why crack
hundreds of servers and steal it piece by piece when you could just crack one
and have it all, right? That doesn´t really make sense because if someone were
to crack the backup server they could just mount all filesystems themselves,
but only if they knew they were there. But also having them mounted feels like
just handing it to them.
Unfortunately I know nothing about programming so I can´t be of any help,
besides testing patches, but do you think this can be done? Change the script
so that it doesn´t require the file systems to be mounted for it to be able to
take snapshots?
How about this?
--- zfs-snapshot-mgmt 2010-06-02 05:31:28.759931924 +0300
+++ zfs-snapshot-mgmt 2010-06-01 01:49:46.665034414 +0300
@@ -127,8 +127,10 @@
end
def snapshots(prefix)
- path = File.join(@mount_point, '.zfs', 'snapshot')
- Dir.open(path).select do |name|
+# path = File.join(@mount_point, '.zfs', 'snapshot')
+# Dir.open(path).select do |name|
+ s = IO.popen('zfs list -r -t snapshot -H -o name ' +
@name).readlines.collect.select { |item| item[0, @name.length + 1] == @name +
'@' }.map { |item| item[@name.length + 1 .. -1] }
+ s.select do |name|
name[0, prefix.length] == prefix
end.map { |name| SnapshotInfo.new(name, @name, prefix) }
end
--
Andriy Gapon
Med Vänliga Hälsningar
-------------------------------------------------------------------------------
Karli Sjöberg
Swedish University of Agricultural Sciences
Box 7079 (Visiting Address Kronåsvägen 8)
S-750 07 Uppsala, Sweden
Phone: +46-(0)18-67 15 66
karli.sjob...@slu.se<mailto:karli.sjob...@adm.slu.se>
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