similar to: Performance Tuning Recommendations for Dovecot

Hi, Is there an IMAP performance difference using Maildir between using version 3 and version 1 of the dovecot-uidlist (either dovecot 1.0.7 or 1.1.2)? It isn't entirely clear to me there is any difference as the filename may contain the size/vsize information. The servers will eventually be running 1.1.2 with the maildir_copy_preserve_filename turned on. I'm doing a batch migration

Hi, I've just completed a migration from Courier to a Dovecot 1.0.7 (patched RHE 5) which is working great, except for this weirdness of an issue that is impacting a handful of users. My question is that will turning off maildir_copy_preserve_filename help or hurt in a situation where there are multiple servers with their own local INDEX files (uidlist is shared)? The problem is that a

Hi, I apologize if this has already been answered. I looked for an identical message but had no luck. I'm also not convinced this is a bug or if it is a bug that I want it fixed. The problem gives me a great reason to change our configuration to something more modern. Here is the situation. Our 1.0.7 configuration has the following, and only, namespace definition. namespace private {

Hi, Up until yesterday, our environment which consists an NFS maildir file store with multiple front end servers, was working fine. We've verified that the server clocks and machines clocks are in sync. Starting yesterday afternoon, We are getting ~850 log entries of the form 'Timeout while waiting for lock for transaction log files' or 'Our dotlock file was modified,

Hi, Is there a way to associate a user's the login (imap-login) process with the user's 'imap [' process? We are trying to lock down an issue to make sure we full understand it. /proc and shared memory tools weren't particular useful. Just for context, we are having an intermittent locking index cache locking issue that appears to impact only a subset of our users. The

Hi guys, I have a simple question regarding using rsync when one has read-only files on the src machine. My situation is the following: I have two machines, call then A and B. I'm using rsync on B to download from A (I'm running rsync in daemon mode on A from inetd.conf). The rsyncing on B works fine except for one problem: when I run rsync on B to do the downloading from A, I get

Hi, I've just installed samba and got it to work for me, but I have a problem mapping directories in Windows 95/98. I can map the Actual drive with: net use f: \\server\f But if I do: net use x: \\server\f\public /* We are migrating from a novell 3.12 sever */ I get an error 50. If I use the explorer shell to map the drives, it maps X:\ to the root directory (\\server\f). If I use

I now have Dovecot in production and things are apparently trouble-free. The one known problem is that initial client inbox load can take 30 seconds - 2 minutes. For instance: 'I got fed up waiting and went and got coffee'...this with a 3MB mbox inbox...and my mail server is a substantial machine consuming 25% CPU just for this person's IMAP session. I realize that a certain

Hi, Does anyone have experience with bending the NFS recommendations to get better performance? The question is has anyone, with Maildir and the INDEX= on NFS (i.e. dovecot.index and dovecot.index.cache, set mail_nfs_index to no. If so, was it better to turn maildir_copy_preserve_filename to on or did it help to turn if off. The other question is did you play with turning off atime updates

Hi, I'm trying to backup from one machine to the other (automatically via cron) using rsync and ssh password-less public key authentication. I having been trying to set this up following an article in a Linux magazine[1] by only allowing the specific rsync command to run on the remote box. I am using the following rsync command: $ rsync -avz -e "ssh -i ~/.ssh/backup-key" /backup

Hi guys, can anyone suggest why, when I connect to my rsync server, I'm not prompted for a username and password but instead I'm only prompted for a password? I have "auth users = username" set in /etc/rsyncd.conf and a corresponding entry in /etc/rsyncd.secrets but still rsync only asks for a password. Stewart -- Stewart Mclean UNIX Support Group Information Management

Client: Dual 1GHz G4 OSX 10.2 Gig-Ethernet Server: Dual 2GHz P4 Linux 2.4.18 Raid-5 1TB Gig-Ethernet With netatalk 1.5.5 I get sustained writes of 66MB/s (yes, megabytes) With samba 2.2.7a I get sustained writes of 15MB/s I've tweaked the settings and ended up with these: socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 IPTOS_LOWDELAY SO_KEEPALIVE read raw =

Hi, I'm trying to copy some directories with rsync and would like to delete files from the destination if they no longer exist in the source. I'm using the following command: rsync -v --archive --hard-links --delete --force --filter=':/.rsync-filter' /opt/ /mnt/backup/opt/ /opt does not contain any files the destination contains one file stewart at attobeast:/etc$ ls

Glad to hear you can reproduce it. What I don't know is if this is a linker issue or an LLVM issue. -----Original Message----- From: Rafael Espíndola [mailto:rafael.espindola at gmail.com] Sent: Friday, May 30, 2014 3:58 PM To: Daniel Stewart Cc: LLVM Developers Mailing List Subject: Re: Error with Gold Linker during LTO Sorry, I had understood that the linker was crashing, not the

Good morning, The tuning page says worker_processes should be at least the number of CPU cores on a dedicated server. In the case of hyper-threading, should this be the number of cores or the number of threads? For example the Intel Core i7-2600 Quadcore[1] has 4 cores and 8 threads. Would I start my worker_processes at 4 or 8? Finally, would the same apply to Nginx worker processes? Many

Hi I have recently being doing a lot of rebuilds recently. Whats the best approach to saving a copy of the current firewall settings? I think I am right in my understanding that "Shorewall Save" saves the current settings of Iptables so that the state of Iptables can be reinstated quickly if required, but doesn''t save any of the configuration files like Rules, Policy etc.

Hi guys, I am experiencing a very strange problem with passwords and username with rsync. I have a "auth users" line in my /etc/rsyncd.conf file (see below) and a corresponding username and password in my /etc/rsyncd.secrets. The strange thing is is that authentication for the module listed in /etc/rsyncd.conf (unixadm) only works IF the username in /etc/rsyncd.secrets is the same as

Hi We have setup a TFTP server on a server running Fedora Core 2. We have a network/router appliance that acts as our DHCP server. The DHCP server gives our workstations an IP address then directs them to our TFTP server looking for the boot file named pxelinux.0 . On the TFTP server we have a directory called tftpboot in this directory we have the following files: - memdisk -

Hi, I am new to dovecot and I am a bit confused with how namespaces/prefixes/separators are handled by the clients and dovecot... I tried to understand the desciption from the conf file but without success. With each conf I create the following path /f1/f2 on the client (thunderbird) and get the following on the dovecot server: PREFIX= and separator=/ => .INBOX.f1.f2 + .INBOXTrash

Hi I have recently reconfigured my system to a Bridge based architecture on the basis that I have an ADSL Modem/Router with a Public address on the Wan side and a Private address on the Lan side. I am running a Debian based system kernel 2.6.7 and the Bridging software is installed and working correctly, including startup etc. The problem that I have is in "shorewall start" The