similar to: Hints for a NFS-Setup

hi all We have an ocfs2 cluster compose of 4 Debian lenny serveurs wich have access to an ISCSI LUN we have create a partition on this Lun and formated this partition as OCFS2. 2 serveurs does mail delivery (SMTP) and the two other are pop/imap servers. The smtp servers use dovecot LDA to deliver to mailboxes. La version de dovecot is 1.2.13, ldirectord balance conexion to the

There is a bug in ocfs2 1.4 if you are using it you should be looking for upgrading to ocfs2 1.6 I have several performance problens with ocfs2 but now i guess the problem is the webmail client that we are using. I have several post here about it. I will write a new one as soon as i found the solution. Anyway, why use lmtp over lda ? My setup have about 5000 active acounts all in maildir.

Is it possible to create a highly-available OCFS2 cluster (i.e., A storage cluster that mitigates the single point of failure [SPoF] created by storing an OCFS2 volume on a single LUN)? The OCFS2 Project Page makes this claim... > OCFS2 is a general-purpose shared-disk cluster file system for Linux capable of providing both high performance and high availability. ...but without backing-up

Hello, I''ve configured two xen hosts (dom0) sharing a LUN on a SAN. My firs obiective is to run different domU on the two hosts, and implement live migration between them. Subsequently, I''d like to implement HA, so if a xen host goes down, domUs will be restarted on the other one. What''s the better way to obtain this? I think I need a cluster file system to

We have an application that has many processing threads writing more than a billion files ranging from 2KB ? 50KB, with 50% under 8KB (currently there are 700 million files). The files are never deleted or modified ? they are written once, and read infrequently. The files are hashed so that they are evenly distributed across ~1,000,000 subdirectories up to 3 levels deep, with up to 1000 files

Hello, First of all, i am new at the list and i have several questions about ocfs2 performance. Where i am working i am having huge performance problens with ocfs2. Let me tell my envoriment. 3 Xen VirtualMachines withs ocfs2 mounting an LUN exported over iSCSI. ( acctualy 3 LUNS, 3 ocfs2 clusters ) I am not the one who configured the envoriment, but it is making the performance of my MAIL

Hi everyone, I would like to move my mails from ocfs2 to an NFS share. As the mountpoint and all folders and files belong to nobody/nogroup, dovecot is only able to access the mails if I give full access to "others". I don't like that. How do you NFS-using guys solve this problem? Regards Patrick

root at mx10:~# doveadm force-resync -u oleg.vasilyev at bgoperator.com noreply-05-08-2015 doveadm(oleg.vasilyev at bgoperator.com): Warning: fscking index file /srv/vmail/current/bgoperator.com/oleg.vasilyev/storage/dovecot.map.index doveadm(oleg.vasilyev at bgoperator.com): Warning: mdbox /srv/vmail/current/bgoperator.com/oleg.vasilyev/storage: rebuilding indexes doveadm(oleg.vasilyev at

Do you have a huge >4GB dovecot.index.cache file? > On 17 Nov 2015, at 13:04, Sergey Schwartz <sergey.schwartz at bgoperator.com> wrote: > > Gentlemen, > > imap hits the same problem > > Nov 17 14:02:06 mx10 dovecot: imap(oleg.vasilyev at bgoperator.com): Panic: file mail-index-util.c: line 37 (mail_index_uint32_to_offset): assertion failed: (offset <

Two questions (and then a bonus one), kind of interrelated, but, first, some basic info. I'm using OCFS2 on OpenSUSE 10.2, kernel 2.6.18.8(-0.7). There are three nodes in the OCFS2 cluster, backed by Openfiler iSCSI storage. First, I'm using Openfiler and iSCSI volumes to back my OCFS2 file system. The nodes that are part of the OCFS2 cluster use the file system as a shared storage

Gents, I've just upgraded to the latest build of dovecot , now lmtp delivery process panics for just one user Nov 10 15:36:49 mx10 dovecot: lmtp(oleg.vasilyev at bgoperator.com): Panic: file str.c: line 22 (str_new_const): assertion failed: (str[len] == '\0') Nov 10 15:36:49 mx10 dovecot: lmtp(oleg.vasilyev at bgoperator.com): Panic: file str.c: line 22 (str_new_const):

We're trying to setup a dual-primary DRBD environment, with a shared disk with either OCFS2 or GFS. The environment is a Centos 5.3 with DRBD82 (but also tried with DRBD83 from testing) . Setting up a single primary disk and running bonnie++ on it works. Setting up a dual-primary disk, only mounting it on one node (ext3) and running bonnie++ works When setting up ocfs2 on the /dev/drbd0

We're trying to setup a dual-primary DRBD environment, with a shared disk with either OCFS2 or GFS. The environment is a Centos 5.3 with DRBD82 (but also tried with DRBD83 from testing) . Setting up a single primary disk and running bonnie++ on it works. Setting up a dual-primary disk, only mounting it on one node (ext3) and running bonnie++ works When setting up ocfs2 on the /dev/drbd0

Hello, I am trying to setup a simple 2 node cluster in sles10 64bit. This is just for testing purposes to validate one of our iscsi products. I followed the instructions from http://wiki.novell.com/images/3/37/Exploring_HASF.pdf After doing all the xml stuff for stoneith, when I do a mount I see that the iscsi luns are not getting mounted. Moreover, when I do a /etc/init.d/o2cb status, I see

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I'm using ocfs2 and all modules from Suse (SLES9), no self compilations. Here are the details: * 32-bit machine (writing to ocfs2 partition/LUN and where the corruption was reported): Kernel: 2.6.5-7.257-bigsmp #1 SMP i686 i386 GNU/Linux OCFS2 rpms: ocfs2console-1.2.1-4.2 ocfs2-tools-1.2.1-4.2 o2cb_ctl -V: o2cb_ctl version 1.2.1 /etc/init.d/o2cb status: Module "configfs":

Changelog from V1 to V2: 1. Modify some codes according to Mark's advice. 2. Attach some test statistics in the commit log of patch 3 and in this e-mail also. See below. Hi all, In ocfs2, when we create a fresh file system and create inodes in it, they are contiguous and good for readdir+stat. While if we delete all the inodes and created again, the new inodes will get spread out and that

Good day, everyone. I have SAN server build with Openfiler OS, with iSCSI mode turned on. I have two nodes, which connect to that server via iSCSI, using one of two active iSCSI partitions. I've installed ocfs2 1.3.3 with kernel 2.6.23.1, configured it, made ocfs2 partition and was successful in mounting it on both nodes. Everything works just fine, I can upload file from one node and

Hello everyone. I am currently working on setting up new servers for my employer. Basically we want two servers, all of them running several VEs (virtual environments, OpenVZ) which can dynamically take over each others job if necessary. Some services will run concurrently on both servers like apache2 (load balancing), so those need concurrent access to specific data. We had a close look at

Hello, How to mount a disk with ocfs2 FS in one node to another . Let ys say I have /dev/sda mounted on /u01 in node 1 . I need to access it from nod2 . Any solutions ? I am using ubuntu 8.10 Node 1 ====== root at 110:~# /etc/init.d/o2cb status Module "configfs": Loaded Filesystem "configfs": Mounted Module "ocfs2_nodemanager": Loaded Module