Bug 3570 - Rsync don't sync differential updates correctly on Solaris (Linux is fine)
Rsync don't sync differential updates correctly on Solaris (Linux is fine)
Status: CLOSED INVALID
Product: rsync
Classification: Unclassified
Component: core
2.6.6
Sparc Solaris
: P3 critical
: ---
Assigned To: Wayne Davison
Rsync QA Contact
:
Depends on:
Blocks:
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Reported: 2006-03-02 00:29 UTC by Daleson
Modified: 2006-03-12 02:56 UTC (History)
0 users

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Description Daleson 2006-03-02 00:29:07 UTC
Hi

I did the following simple test on Solaris platform to find out the rsync didn't sync differential update of source file but instead transferred the **whole** file.  It is working fine on Linux platform (tested on Redhat).  Appreciate prompt assistance from anyone.. thanks

tested on rsync versions :
> rsync  version 2.6.5  protocol version 29
> rsync  version 2.6.6  protocol version 29


1) hudson% rsync --progress --stats -avz a.tar /tmp/
building file list ... 
1 file to consider
a.tar
      95647 100%    1.05MB/s    0:00:00  (1, 100.0% of 1)

Number of files: 1
Number of files transferred: 1
Total file size: 95647 bytes
Total transferred file size: 95647 bytes
Literal data: 95647 bytes
Matched data: 0 bytes
File list size: 64
File list generation time: 0.003 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 95044
Total bytes received: 42

sent 95044 bytes  received 42 bytes  190172.00 bytes/sec
total size is 95647  speedup is 1.01

2) hudson% rsync --progress --stats -avz a.tar /tmp/
building file list ... 
1 file to consider

Number of files: 1
Number of files transferred: 0
Total file size: 95650 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 64
File list generation time: 0.002 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 80
Total bytes received: 20

sent 80 bytes  received 20 bytes  200.00 bytes/sec
total size is 95650  speedup is 956.50


3) hudson% echo aa>>a.tar
hudson% rsync --progress --stats -avz a.tar /tmp/
building file list ... 
1 file to consider
a.tar
      95650 100%    1.07MB/s    0:00:00  (1, 100.0% of 1)

Number of files: 1
Number of files transferred: 1
Total file size: 95650 bytes
Total transferred file size: 95650 bytes
Literal data: 95650 bytes
Matched data: 0 bytes
File list size: 64
File list generation time: 0.001 seconds
File list transfer time: 0.000 seconds
Total bytes sent: 95047
Total bytes received: 42

sent 95047 bytes  received 42 bytes  190178.00 bytes/sec
total size is 95650  speedup is 1.01
Comment 1 Wayne Davison 2006-03-02 09:54:31 UTC
Local transfers default to --whole-file because that makes the transfers faster (it decreases disk I/O and sends more literal data when the transfer link is not the limiting factor).  If you just want to test how rsync works locally, use --no-whole-file to enable the incremental update algorithm.  Also, using -z on a local transfer is usually a waste of CPU, so only use it for testing purposes.