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Bug 58888

Summary: RFE: add --rsyncable
Product: [Retired] Red Hat Raw Hide Reporter: Jeff Johnson <jbj>
Component: gzipAssignee: Trond Eivind Glomsrxd <teg>
Status: CLOSED CURRENTRELEASE QA Contact: Ben Levenson <benl>
Severity: medium Docs Contact:
Priority: medium    
Version: 1.0   
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Target Release: ---   
Hardware: i386   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2002-01-28 21:08:53 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description Flags
--rsyncable patch none

Description Jeff Johnson 2002-01-26 19:46:36 UTC 
Here's a patch from Rusty Russell through alikins to add --rsyncable
to the gzip command line that shouldn't break anything else.

FWIW, the equivalent patch for zlib is gonna be internalized
in rpm for payload compression. You've been warned :-)
Comment 1 Jeff Johnson 2002-01-26 19:47:28 UTC 
Created attachment 43620 [details]
--rsyncable patch
Comment 2 Trond Eivind Glomsrxd 2002-01-28 21:00:16 UTC 
What does this patch do - what is "--rsyncable" ?
Comment 3 Jeff Johnson 2002-01-28 21:08:48 UTC 
If (and only if) --rsyncable is specified, then the compression
algorithm changes to preserve rsync's block boundaries on
compressed data. This leads to ~1% degradation in the
size of the compressed text, but can lead to dramatic improvements
when the compressed text is rsync'd.

Try a google search on "gzip.rsync.patch2" for details, there's
a talk given at a linux conference in Oz by Rusty Russell, more.
Comment 4 Trond Eivind Glomsrxd 2002-06-21 15:20:02 UTC 
It was added in 1.3.2-3. It's just been removed, but that's a separate issue :).