similar to: scalability and arhive ideas

Hi, I was following the earlier namespaces discussion and I would like to repost a doubt. I need to have some kind of archiving, it means, store old messages into a cheap storage. But I couldn?t think any other solution than symlinks. Then, I thought about store 'Sent Items' (as having old messages and less acessed). But I also needed to do with nfs and symlinks. So, it comes the

Yes, I?ve read these doc. I was just considering if someone had any experience with Mogile in email environment. Well, actually I?m trying to figure out if one of those nosql systems can store and scale email systems (ie, mailboxes - instead of maildir). I know mysql is always quoted as an option and discussed sometimes in the list. I think it?s an unnecessary overhead and bottleneck. As

Hi, I?m using dovecot at our storages, accounts is distributed among many storages (not entire domain), all of them with compression (when message > 30Kb), nightly crontab script. Even though compression and many storages, we always have problems with disk space and need to migrate accounts. Have you ever implemented any archive solution working with dovecot ? Regards, Fernando

I believe that dovecot lmtp server will be released with 2.0 version. I working at a project that requires an lmtp server to have scalability. How about the stability of the actual version (alpha, beta ?). Is it mature to be used at production environment ? Another question, my 'ideal' setup would be to receive a message by lmtp and delivers it to an external command (like maildrop).

Hi, I?m using a multi-storage architecture in my email environment and maildrop as deliver command at mta. But to this deliver the mx servers mount nfs partitions - we need to use maildrop because many patches we inserted. How can I insert a piece of code at maildrop allowing it to update the dovecot indexes (which lib and/or function from dovecot I need to use ?) Best Regards, Fernando

Hi list, Have you ever heard or tried mogilefs? (http://danga.com/mogilefs/) Do you think suitable for dovecot/mail environments ? Regards, Fernando

Hi, I compressed many files using bzip2, but in some cases it crashes. I believe that it is related to dovecot indexes. How to reproduce: Inside a Maildir folder without any indexes yet, compress a message with bzip2 and tryes to access it. At my server is showed the error: Jun 24 00:18:20 maildev dovecot: IMAP(xxx at xxx): FETCH for mailbox Trash UID 1 failed to read message input: No such

This is something I figured out a few months ago, mainly because this one guy at work (hi, Stu) kept telling me my multi-master replication plan sucked and we should use some existing scalable database. (I guess it didn't go exactly like that, but that's the result anyway.) So, my current plan is based on a couple of observations: * Index files are really more like memory dumps.

In other people's environments or test situations, what kind of scalability do you see with winbind? How many aggressive users can be supported? Using: Suse SLES 8 for ibm iSeries Samba authentication with winbind against win2k active directory. at the moment, a 100 FD network connection 3 windows DC's to authenticate against. Alex Laslavic Havertys Tech Services

Hi All, I have posted this messgage yesterday in the Beowulf mailing list, and did not get any responses, as i have tried different Centos kernels to see if the behaviour changes or not, and it did not change much, I am posting it here, I hope no one minds, and thanks in advance for any pointers or clues? ---------- Forwarded message ---------- From: Walid <walid.shaari at gmail.com>

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

Hi Folks, How scalable is dovecot. Do you think a machine with a dual core 2.8Ghz processor and 2GB of RAM would do a business with 600 users? This server will have a 100Mbps link to the net, however it will be access by the business using a couple of ADSL lines (Roughly 7Mbps each). This machine will also be running Postfix Your help is appreciated Cheers Jonny

Hello, I was wondering if people have a sense of the performance scalability of the routing system, in the number of map.connect statements. Is execution time (or memory usage) of routing any more than linear in the number of map.connects? I figure I''d ask before trying to reverse-engineer all the code generation... :) On a related note, the reason I potentially have a lot of

Hi, Could anyone point out a good existing discussion of Puppet scalability? I''m relating to the Puppet master and ecosystem parts that are not the actual agents sitting on the managed servers. In particular anything that would shed insight upon: 1. Does a Puppet master gracefully degrade when overwhelmed? Or does stuff start failing, instead of just performing more slowly.

Hello All, How are you all doing today? Good i hope. I am wondering if some one could please comment on the scalability limitations of Tinc as far as bandwidth usage and connections? Thinking about the documentation on Tinc suggests that if it is always trying to maintain a full mesh topology and if there would be many nodes, e.g. more than about 100 or so active at a give time, then Tinc

Hello there, I believe that unfsd ( http://unfs3.sourceforge.net/ ) now does have multi-threaded capability and as such should be fairly well scalable. I am using it on CentOS 6.2 and it seems to become all but unusable when more then 3-4 users connect to it. Is that normal? What sort of experience have other people had? Is there a way to parametrically tune it, by the way? Thanks. Boris.

Hi I plan to setup an asterisk box to function as a SIP gateway forwarding lots of calls to/from a backend of several other asterisk boxes, each with a TE410 card for PSTN connectivity. It will only gateway the calls into the PSTN gateways. No transcoding is planned - only plain ALAW. How many concurrent calls would you think this can handle? I'm asked to plan a system that can handle

Hi, My question is. What are your performance experiences compared to languages such as PHP, PERL and ASP? Could you build a site as big as Ebay on rails and have it perform fast enough? I''m afraid that the generalisation in components I see so much users asking for will make the framework too heavy compared to a clean programmed for perfomance PHP application. Probably even

i''m in a team that is currently developing a web 2.0 application that really needs to scale in the very near future. we are using backgroundrb for some of the server tasks. currently, we have two servers (in RubyOnRails) that connects to a single backgroundrb daemon. is there a way that we can run multiple backgroundrb and have the servers do a round robin on them to retrieve a worker

Hi all, I''ve had a lot of fun over the last couple of days integrating Ferret with my Rails app. Many thanks to Dave Balmain for writing this. Everything seems to work well and my site now has full search capabilities. But I''m wondering how I can scale my site now? What would be the recommended approach in terms of sharing indexes across multiple servers? Is the