AbstractMigrate: do not overwrite global signal handlers
perls 'local' must be either used in front of each $SIG{...}
assignments or they must be put in a list, else it affects only the
first variable and the rest are *not* in local context.
This may cause weird behaviour where daemons seemingly do not get
terminating signals delivered correctly and thus may not shutdown
gracefully anymore.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
AbstractMigrate: remove unused rsync and scp remainders
We have no call using rsync_cmd or scp_cmd here or any child class.
The only part where rsync is used is in the
PVE::Storage::storage_migrate call, but here both the command and the
RSYNC_RSH environment variable gets assembled there locally, so clean
this up here.
Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>