I have submitted a patch http://gerrit.ovirt.org/4174
it is about "make compression type configurable, support gzip and xz"
As I mentioned in message that vdsm requires "xz" for logrotate.
So I think there is no need to support two kinds of compression format:
xz and gzip.
I have get some comments on this patch.
It seems xz is better.
XZ utils supports multi threading, and the compression ratio is better
And it is supports many platforms (see http://tukaani.org/xz/ , look
for Supported platforms).
Since xz gets higher compression efficiency and the logrotate has
already required "xz"
So how about to abandon gzip, only use xz?
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