similar to: Quotas - per folder message limits?

Timo Sirainen <tss at iki.fi> Wrote: > On Mon, 2010-09-06 at 14:26 +0100, Alan Brown wrote: > > Is there any way of enforcing a Maildir per-folder message limit in > > Dovecot? > No. Would you consider it as a feature request? > > We're finding major performance hits once a threshold of files/directory > > is exceeded. This applies across all

> From: Stan Hoeppner <stan at hardwarefreak.com> > Subject: Re: [Dovecot] SSD drives are really fast running Dovecot > > > Yes. Go with a cluster filesystem such as OCFS or GFS2 and an inexpensive SAN > storage unit that supports mixed SSD and spinning storage such as the Nexsan > SATABoy with 2GB cache: http://www.nexsan.com/sataboy.php I can't speak for

This is something Timo hacked up for me a few years ago and I realised should be on the list in case anyone else wants them. The following patches will limit maildir folders to 4000 messages on Dovecot 2.0.* and 2.1.* The Specfile patch is against the Cityfan Redhat EL5 SRPM but is likely to work on most build platforms Changing the message limit requires a recompile. It's brutal and

I have tried sending this before, but it did not appear to get through. Hello, When using gfs2 with quotas on a SAN that is providing storage to two clustered systems running CentOS6.5, one of the systems can crash. This crash appears to be caused when a user tries to add something to a SAN disk when they have exceeded their quota on that disk. Sometimes a stack trace is produced in

Hello list, we continue our tests using Dovecot on a RHEL 6.1 Cluster Backend with GFS2, also we are using dovecot as a Director for user node persistence, everything was ok until we started stress testing the solution with imaptest, we had many deadlocks, cluster filesystems corruptions and hangs, specially in index filesystem, we have configured the backend as if they were on a NFS like setup

What syntax is needed to make this work? The 2.0 wiki recomendations don't work - I can see the inboxes or the folders but not both at once and there are lots of error messages about prefix clashes if I simply use the existing 2.0.20 conf file on 2.1.6 The layout I have is: Inboxes in mbox format - /var/spool/mail/%u Folders in maildir format - /var/spool/imap/%u/Maildir/ Control and

Hi. The short story... Rush job, never done clustered file systems before, vlan didn't support multicast. Thus I ended up with drbd working ok between the two servers but cman / gfs2 not working, resulting in what was meant to be a drbd primary/primary cluster being a primary/secondary cluster until the vlan could be fixed with gfs only mounted on the one server. I got the single server

Hi all, Where i want to arrive: 1) having two storage server replicating partition with DRBD 2) exporting via GNBD from the primary server the drbd with GFS2 3) inporting the GNBD on some nodes and mount it with GFS2 Assuming no logical error are done in the last points logic this is the situation: Server 1: LogVol09, DRDB configured as /dev/drbd0 replicated to Server 2. DRBD seems to work

I'm searching for the SRPM corresponding to this installed RPM. % yum list | grep gfs2 gfs2-kmod-debuginfo.x86_64 1.92-1.1.el5_2.2 It is missing from: http://msync.centos.org/centos-5/5/os/SRPMS/ What I need from the SRPM are the patches. I'm working through some issues using the source code, and the patches in the RedHat SRPM

Hello, I will create a Xen cluster and using GFS2 (with conga, ...) to create a new Xen cluster. I know that GFS2 is prod ready since RHEL 5.3. Do you know whent Centos 5.3 will be ready ? Can I install my GFS2 FS with centos 5.2 and then "simply" upgrade to 5.3 without reinstallation ? Tx

Hi everybody, I have tested CTDB+GFS2+CMAN under Debian. It works good but I do not understand some points. It is possible to run the CTDB defining it under services section in cluster.conf but running it on the second node shuts down the process at the first one. My CTDB configuration implies 2 active-active nodes. Does CTDB care if the node starts with clean_start="0" or

We have done some benchmarking tests using dovecot 2.0.12 to find the best shared filesystem for hosting many users, here I share with you the results, notice the bad perfomance of all the shared filesystems against the local storage. Is there any specific optimization/tunning on dovecot for use GFS2 on rhel6??, we have configured the director to make the user mailbox persistent in a node, we will

Hi list ! We have a very busy webserver hosted in a clustered environment where the document root and data is on a GFS2 partition off a fiber-attached disk array. Now on busy moments, I can see in htop, nmon that there is a fair percentage of cpu that is waiting for I/O. In nmon, I can spot that the most busy block device correspond to our gfs2 partition where many times, it shows that

Hi, all this days I'm testing a dovecot setup using lvs, director and a cluster email backend with two nodes using rhel5 and gfs2. In the two nodes of the email backend I configured mail location this way: mail_location = sdbox:/var/vmail/%d/%3n/%n/sdbox:INDEX=/var/indexes/%d/%3n/%n /var/vmail is shared clustered filesystem with GFS2 shared by node1 and node2 /var/indexes is a local

Hi guys, my goal is to create a reliable virtualization environment using CentOS 6.4 and KVM, I've three nodes and a clustered GFS2. The enviroment is up and working, but I'm worry for the reliability, if I turn the network interface down on one node to simulate a crash (for example on the node "node6.blade"): 1) GFS2 hangs (processes go in D state) until node6.blade get

Hi, on a clustered Dovecot server installation that was recently moved from a shared GPFS filesystem to GFS2, occasional corruptions in the users' INBOXes started appearing, where a new incoming message would be appended directly after a block of NUL bytes, and be scanned by dovecot as being glued to the preceding message. I traced this to the file extension operation performed in

Today I will try Dovecot Director for a setup using a Cluster Backend with GFS2 on rhel5, my question is if is Director stable for use in production for large sites, I know is mainly designed for NFS but I believe it will do the job also for a cluster filesystem like GFS2 and should solve the mail persistence problem with a node and locking issues. I plan to add a layer behind a load balancer to

Andreas Dilger wrote: > On Feb 20, 2009 20:23 +0300, Kirill Kuvaldin wrote: >> I'm evaluating different cluster file systems that can work with large >> clustered environment, e.g. hundreds of nodes connected to a SAN over >> FC. >> >> So far I looked at OCFS2 and GFS2, they both worked nearly the same >> in terms of performance, but since I ran my

Hello, I'm deploing a new email cluster using Dovecot over GFS2. Actually I'm using courier over GFS. Actually I'm testing Dovecot with these parameters: mmap_disable = yes mail_fsync = always mail_nfs_storage = yes mail_nfs_index = yes lock_method = fcntl Are they correct? RedHat GFS support mmap, so is it better to enable it or leave it disabled? The documentation suggest the

Ok, I'm experiencing slowness serving SAN-based GFS2 filesystems (of a specific SAN configuration). Here's my layout: I have a server cluster. OS= RHEL 5.4 (both nodes...) kernel= 2.6.18-194.11.3.el5 Samba= samba-3.0.33-3.14.el5 *On this cluster are 6 GFS2 Clustered filesystems. *4 of these volumes belong to one huge LUN (1.8 TB), spanning 8 disks. The other 2 remaining volumes are 1