bug report: different files are not rsynced, identical files rsynced

[Peter Chun]

Hi,
I have only just subscribe to the list.  ( only to send this bug report )

Running rsync  version 2.5.6  protocol version 26 ( on Solaris 8 sparc ) 
on both hosts.

I have 1 file I wish to sync to a remote machine
the md5 checksum is

host1: MD5 (030722.mj) = 020397fde83c2e20464b6642c018ce6e
host2: MD5 (030722.mj) = 35fcffc896c65c8ec861385b4edb81ac

For brevity ..
set RSYNC="--archive --verbose --stats --recursive --times --perms 
--owner --group --links --rsync-path=/usr/local/bin/rsync"

rsync $RSYNC --dry-run /path/030722.mj host2:/path/030722.mj
building file list ... done

Number of files: 1
Number of files transferred: 0
Total file size: 9416161 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 55
Total bytes written: 67
Total bytes read: 20

wrote 67 bytes  read 20 bytes  58.00 bytes/sec
total size is 9416161  speedup is 108231.74

The file is not listed.

There are other files in that path ( 030701.mj to 030722.mj )
All files from 030701 to 030721 have identical md5 checksums

rsync $RSYNC --dry-run /path/ host2:/path/
building file list ... done

Number of files: 23
Number of files transferred: 0
Total file size: 356814662 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 387
Total bytes written: 399
Total bytes read: 20

wrote 399 bytes  read 20 bytes  838.00 bytes/sec
total size is 356814662  speedup is 851586.31

I then copy the entire directory to /tmp/path/
rsync $RSYNC --dry-run /path/ host2:/tmp/path/
building file list ... done

Number of files: 23
Number of files transferred: 0
Total file size: 356814662 bytes
Total transferred file size: 0 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 387
Total bytes written: 399
Total bytes read: 20

wrote 399 bytes  read 20 bytes  279.33 bytes/sec
total size is 356814662  speedup is 851586.31


If I make a copy of the file on host1 to /tmp


rsync $RSYNC --dry-run /tmp/030722.mj host2:/path/030722.mj
building file list ... done
030722.mj

Number of files: 1
Number of files transferred: 1
Total file size: 9416161 bytes
Total transferred file size: 9416161 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 50
Total bytes written: 66
Total bytes read: 24

wrote 66 bytes  read 24 bytes  60.00 bytes/sec
total size is 9416161  speedup is 104624.10

MD5 (/path/030722.mj) = 020397fde83c2e20464b6642c018ce6e
MD5 (/tmp/030722.mj) = 020397fde83c2e20464b6642c018ce6e


Also I have copied the directory to host1 ( remembering that all 030701 
to 030721 files have identical md5 checksums )
rsync $RSYNC --dry-run /path/0307/ /path2/0307/        
building file list ... done
030701.mj
030702.mj
030703.mj
030704.mj
030705.mj
030706.mj
030707.mj
030708.mj
030709.mj
030710.mj
030711.mj
030712.mj
030713.mj
030714.mj
030715.mj
030716.mj
030717.mj
030718.mj
030719.mj
030720.mj
030721.mj
030722.mj

Number of files: 23
Number of files transferred: 22
Total file size: 356814662 bytes
Total transferred file size: 356814662 bytes
Literal data: 0 bytes
Matched data: 0 bytes
File list size: 387
Total bytes written: 487
Total bytes read: 108

wrote 487 bytes  read 108 bytes  1190.00 bytes/sec
total size is 356814662  speedup is 599688.51

Note: there are 23 files in the dir, a --delete will remove 030723.mj

The --check-sum flag is ( as stated in the docs ) extremely slow.
rsyncing without already takes about 3hrs
timing tests show that it could take upto 3600 hours to complete with 
--check-sum
These files have cross references, thus you can not just rsync todays file.
Thus the need to rsync the entire path.

Thanks
Peter