Re: rsync on maildir
I created a perl script to look at each mail directory.
Seems rsync works better when it doesn't have much to keep track off.
I am also using nice -19 which seems to reduce the problems.
Thanks.
On 26/10/03 19:04 +0100, Christian Storch wrote:
> Perhaps you have some hundreds of 3000 files to sync.
> So rsync would have a lot of work building the file list.
>
> Try it with 'nice rsync ...' or use nice with setting a very low priority (high value!).
>
> Christian
>
> ----- Original Message -----
> From: "Theodore Knab" <tjk@annapolislinux.org>
> To: "Debian-ISP" <debian-isp@lists.debian.org>
> Sent: Sunday, October 26, 2003 2:00 PM
> Subject: rsync on maildir
>
>
> > I am using rsync to backup mail on a mail-server with 3000+ mail
> > accounts [only 1550+ are in use]. Using this command:
> >
> > /usr/bin/rsync -a --delete /var/imap/mailarray /var/oldarray
> >
> > This mail server only receives about 2GB of mail per day. Rsync is run
> > without shutting down any services.
> >
> > About half the time I run rsync the system slows down to the point that
> > mon starts sending me pages. To fix it, I have to log in, and kill the rsync
> > process.
> >
> > Is there a more efficient way to run rsync without down time ?
> >
> > Or should I be using something else for backups ?
> >
> > After the last failure I ran rsync in dry-run mode and I got this error:
> > imap:~# /usr/bin/rsync -axn --delete /var/imap/mailarray /var/oldarray -T
> > /tmp --timeout=10
> > building file list ...
> > rsync: writefd_unbuffered failed to write 4092
> > bytes: phase "send_file_entry": Broken pipe
> > rsync error: error in rsync protocol data stream (code 12) at io.c(515)
> >
> > imap:~$ rsync --version
> > rsync version 2.5.6 protocol version 26
> >
> > file-system ext3:
> > raid-card:0
> > #system file-system and mail backup
> > /dev/sda5 on /var/oldarray type ext3 (rw,noexec,nosuid,nodev) []
> >
> > raid-card:1
> > #mail storage
> > /dev/sdc5 on /var/imap type ext3 (rw,noexec,nosuid,nodev,usrquota) []
> >
> > --
> > ------------------------------------------
> > Ted Knab
> > Chester, MD 21619
> >
> > ------------------------------------------
> > 940216d6021602a41607166696c656c202778696368602d65616e637
> > 02940226c696e646c69702c6f667560256675627478696e67602a416
> > 0716e6563756e2a0
> >
> >
> > --
> > To UNSUBSCRIBE, email to debian-isp-request@lists.debian.org
> > with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
> >
>
>
> --
> To UNSUBSCRIBE, email to debian-isp-request@lists.debian.org
> with a subject of "unsubscribe". Trouble? Contact listmaster@lists.debian.org
>
--
------------------------------------------
Ted Knab
Chester, MD 21619
------------------------------------------
940216d6021602a41607166696c656c202778696368602d65616e637
02940226c696e646c69702c6f667560256675627478696e67602a416
0716e6563756e2a0
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