[Bacula-users] Compression and SLES
2008-08-28 05:14:12
I wonder why the backup log file reports software compression none
although the debug output (-d 900) reports that files are compressed.
This happens only with the backup client running SLES 9 SP3.
*** Log file ***
Software Compression: None
*** debug output ***
<snip>
backup.c:1084-0 >stored: attr len=90: 44 3 /backup/files/ldap.dump
bfile.c:798-0 open file /backup/files/ldap.dump
bfile.c:820-0 Open file 8
backup.c:664-0 Saving data, type=3
backup.c:739-0 >stored: datahdr 44 4 0
backup.c:806-0 cbuf=0x5610b0 rbuf=0x551000 len=65536
backup.c:827-0 compressed len=7866 uncompressed len=65536
backup.c:895-0 Send data to SD len=7866
</snip>
Yes, I backup also some tar.gz files.
*** debug output ***
<snip>
bfile.c:798-0 open file /backup/files/oxdata.tar.gz
bfile.c:820-0 Open file 8
backup.c:664-0 Saving data, type=3
backup.c:739-0 >stored: datahdr 45 4 0
backup.c:806-0 cbuf=0x5610b0 rbuf=0x551000 len=65536
backup.c:827-0 compressed len=65562 uncompressed len=65536
backup.c:895-0 Send data to SD len=65562
</snip>
Bacula also compress these files but the data is larger than
uncompressed.
Any hint and suggestion is very appreciated on how bacula calculates the
software compresion ratio.
Best regards, Primus.
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