https://bugzilla.samba.org/show_bug.cgi?id=11651
Bug ID: 11651
Summary: Can we allow --inplace and --sparse to coexist when
--whole-file is in play?
Product: rsync
Version: 3.1.2
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P5
Component: core
Assignee: way...@samba.org
Reporter: rs...@sanitarium.net
QA Contact: rsync...@samba.org
I have read and understand why --inplace and --sparse can't normally coexist.
However, those reasons don't seem to apply to a case where --whole-file is in
play. Consider the use case of a 10GB VM image with 512MB of sparseness. On
the source the file uses 9.5GB of storage. But on the target, rsync forces me
to choose between 10GB of permanent storage or 9.5GB of permanent storage +
another 9.5GB of temporary storage while the file is updated.
If --whole-file --sparse --inplace were all in play then rsync could write out
an entirely new sparse sparse file over the existing file without requiring any
temporary storage space.
IOW, I would like 'rsync --whole-file --sparse --inplace srcfile tgtfile' to be
equivalent to 'rm tgtfile ; rsync --sparse srcfile tgtfile' but with rsync's
--inplace handling of the new file rather than making a
.tgtfile.rsync.randomstring file.
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