-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Oliver Fromme wrote: > Ivan Voras wrote: > > Rink Springer wrote: > > > The 'vscan' user leads me assume this is SpamAssassin - I've seen this > > > behaviour at work, where our scripts were trying to backup a 1TB file > > > (which actually was ~vscan/.spamassassin/auto-whitelist). The result was > > > that the backup script died due to lack of disk space on the backup > > > server (as we don't use compression). > > > > > > When I was investigating why the file could be so large it, it turned > > > out the file was only a few hunderd 'real' MB's, so that is why I assume > > > this person is having the same issue as we do. The file is a Berkeley DB > > > file, by the way, so there's nothing textfile about it ;-) > > > > I learn something every day :) > > Didn't know BDB was smart enough to create sparse files. > > BTW, you can use "ls -ls" to display the number of physical > blocks allocated to the file, so you can easily see whether > a file is sparse or not: > > $ dd if=/dev/zero of=foo1 bs=1m count=1 > $ truncate -s 1m foo2 > $ ls -ls foo1 foo2 > 1040 -rw------- 1 olli olli 1048576 Jun 20 22:43 foo1 > 32 -rw------- 1 olli olli 1048576 Jun 20 22:43 foo2
# ls -lsk total 1247288 664064 -rw------- 1 vscan vscan 4398199488512 Jun 23 09:39 auto-whitelist 88 -rw------- 1 vscan vscan 89976 Jun 23 09:39 bayes_journal 566704 -rw------- 1 vscan vscan 1099639861248 Jun 23 09:39 bayes_seen 16432 -rw------- 1 vscan vscan 21454848 Jun 23 09:39 bayes_toks > > As you can see, the file size is the same, but the block > counts are different (I have BLOCKSIZE=K in my environment, > so the blocks are displayed in 1KB units). > > I've written a small script that can be used to detect > sparse files (it even displays the "sparseness" percentage): > > http://www.secnetix.de/olli/scripts/sparsecheck > > Best regards > Oliver > > PS: Of course it is still possible that a file system is > corrupt and needs fsck, no matter whether those files are > sparse or not. > -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) iD8DBQFIX0W+xJBWvpalMpkRAqrdAJ47eLQ+WMp6zBrme5gNyCSvzBtdUwCffYwT +37ul1gPqmk7rVKXRrha7fU= =uSGe -----END PGP SIGNATURE----- _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "[EMAIL PROTECTED]"