third-party-mirrors/zfs_autobackup
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added buffering

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This commit is contained in:
Edwin Eefting 2019-02-16 21:51:30 +01:00
parent 2255e0e691
commit d12a132f3f
1 changed files with 13 additions and 4 deletions
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zfs_autobackup
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@ -95,7 +95,7 @@ def zfs_get_selected_filesystems(ssh_to, backup_name):
for source_filesystem in source_filesystems:
(name,value,source)=source_filesystem
if value=="false":
verbose("Ignoring: {0} (disabled)".format(name))
verbose("Ignored : {0} (disabled)".format(name))
else:
if source=="local" and ( value=="true" or value=="child"):
@ -110,9 +110,9 @@ def zfs_get_selected_filesystems(ssh_to, backup_name):
selected_filesystems.append(name)
verbose("Selected: {0} (inherited selection)".format(name))
else:
verbose("Ignored: {0} (already a backup)".format(name))
verbose("Ignored : {0} (already a backup)".format(name))
else:
verbose("Ignored: {0} ({0})".format(source))
verbose("Ignored : {0} (only childs)".format(name))
return(selected_filesystems)
@ -251,6 +251,8 @@ def zfs_release_snapshot(ssh_to, snapshot, tag=None):
TODO:
(parially implemented, local buffer is a bit more annoying to do)
buffering: specify buffer_size to use mbuffer (or alike) to apply buffering where neccesary
local to local:
@ -288,7 +290,7 @@ def zfs_transfer(ssh_source, source_filesystem, first_snapshot, second_snapshot,
#only verbose in debug mode, lots of output
if args.debug or args.verbose:
if args.debug :
source_cmd.append("-v")
@ -314,6 +316,10 @@ def zfs_transfer(ssh_source, source_filesystem, first_snapshot, second_snapshot,
verbose(txt)
if args.buffer and args.ssh_source!="local":
source_cmd.append("|mbuffer -m {}".format(args.buffer))
#### build target command
target_cmd=[]
@ -340,6 +346,8 @@ def zfs_transfer(ssh_source, source_filesystem, first_snapshot, second_snapshot,
else:
target_cmd.append(target_filesystem)
if args.buffer and args.ssh_target!="local":
target_cmd.append("|mbuffer -m {}".format(args.buffer))
#### make sure parent on target exists
@ -705,6 +713,7 @@ parser.add_argument('--no-send', action='store_true', help='dont send snapshots
parser.add_argument('--allow-empty', action='store_true', help='if nothing has changed, still create empty snapshots.')
parser.add_argument('--resume', action='store_true', help='support resuming of interrupted transfers by using the zfs extensible_dataset feature (both zpools should have it enabled) Disadvantage is that you need to use zfs recv -A if another snapshot is created on the target during a receive. Otherwise it will keep failing.')
parser.add_argument('--strip-path', default=0, type=int, help='number of directory to strip from path (use 1 when cloning zones between 2 SmartOS machines)')
parser.add_argument('--buffer', default="", help='Use mbuffer with specified size to speedup zfs transfer. (e.g. --buffer 1G)')
parser.add_argument('--destroy-stale', action='store_true', help='Destroy stale backups that have no more snapshots. Be sure to verify the output before using this! ')