Derek McGowan a12f493bd3 Update copy to discard over truncate ...

Prevents the copy method from calling discard on the
writer when the reader is not seekable. Instead,
the copy method will discard up to the offset.
Truncate is a more expensive operation since any
bytes that are truncated already have their hash calculated
and are stored on disk in the backend. Re-writing bytes
which were truncated requires transfering the data over
GRPC again and re-computing the hash up to the point of
truncation.

Signed-off-by: Derek McGowan <derek@mcgstyle.net>

2018-01-26 11:44:50 -08:00

3.4 KiB

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