similar to: Basic clustered filesystem advice

On 22 Sep 2017, at 14.18, mj <lists at merit.unu.edu> wrote: > First, the Github link: > https://github.com/ceph-dovecot/dovecot-ceph-plugin > > I am not going to repeat everything which is on Github, put a short summary: > > - CephFS is used for storing Mailbox Indexes > - E-Mails are stored directly as RADOS objects > - It's a Dovecot plugin > > We

Timo, We are contemplating building an S3 compatible cluster of storage servers using Pithos <https://github.com/exoscale/pithos> and Cassandra to get multi data center redundancy and availability. Would it be possible to have multiple Dovecot servers in disparate geographical locations all talking to the same object storage, assuming it's consistent between sites? From what I

I saw some interesting mails from TImo back in 2009 talking about the idea of using something like Cassandra db or similar as a storage platform for both email and index/logs. I was wondering if this has been discussed since then, and if there are any plans to support something like this in the future? I have been playing with Cassandra and found that their RackAwareStrategy gives you the

On 22 Feb 2017, at 22.46, KT Walrus <kevin at my.walr.us> wrote: > >> On Feb 22, 2017, at 2:44 PM, Timo Sirainen <tss at iki.fi> wrote: >> >> I guess mainly the message sequence numbers in IMAP protocol makes this more difficult, but it's not an impossible problem to solve. > > Any thoughts on the wisdom of supporting an external database for session

Jul 25 01:41:21 big kernel: EXT3-fs error (device device-mapper(254,16)): ext3_readdir: bad entry in directory #248447030: rec_len %% 4 != 0 - offset=0, inode=538976266, rec_len=14637, name_len=49 Jul 25 01:42:53 big kernel: EXT3-fs error (device device-mapper(254,16)): ext3_readdir: bad entry in directory #248447030: rec_len %% 4 != 0 - offset=0, inode=538976266, rec_len=14637, name_len=49

Is there any support for NoSQL databases such as Cassandra (CQL) or MongoDB now or planned in the future for userdb and passdb lookups?

Hey all, I wrote a very basic script to determine if cassandra db is running. I'm setting a variable called 'pid' to the output of a ps | grep like to grab the pid of the cassandra process. #!/bin/bash pid=$(ps -ef | grep cassandra | grep -v grep | grep -i -v -e grep -e screen -e s3fs|awk '{print $2}') if [[ -e $pid ]] then echo "Cassandra is running with pid:

> > You can probably replace that with a much cleaner pid=$(pidof cassandra). Good to know! I hadn't heard of pidof before. However this is what I get when I run it: [root at web1:~] #pidof cassandra [root at web1:~] # Returns nothing. However: [root at web1:~] #pidof java 27210 11418 10852 Gives me a few pids. Only one of which belongs to cassandra, as I have a few java processes

> > "-e" means "if file exists". You should use "-n" That did it!! [root at web1:~] #./bin/check-cass.sh Cassandra is running with pid: 26979 This is what the script looks like now: #!/bin/bash pid=$(ps -ef | grep cassandra | grep -v grep | grep -i -v -e grep -e screen -e s3fs|awk '{print $2}') if [[ -n $pid ]] then echo "Cassandra is

I have a .csv table named mailing.csv as below. It consist a receiver, subject and sender. Receiver subject sender 1 Adrian Cole RE: [WHIRR-117] Composable services Tom White 2 Adrian Cole RE: [WHIRR-117] Composable services Tom White 3 Adrian Cole RE: [WHIRR-117] Composable services Adrian Cole 4 Adrian Cole RE: [WHIRR-117]

hi I am using cassandra gem 0.8.2 and activerecord-cassandra-adapter by winebarrel. The database does not support migration. So, things like scaffolding can be used with Ruby on Rails? Pls do the needful -- View this message in context: http://old.nabble.com/whether-scaffolding-can-be-used-with-cassandra-database-tp28933334p28933334.html Sent from the RubyOnRails Users mailing list archive

Hi list! I have been experiencing a lot of mystical hangs on my box. At first I suspected bad memory or motherboard but I found out that the mystical hangs disappear when I do not load the drivers for my x100p. The box will only hang under high load (copy operations with 30Mb/sec to a raid array in the box for example). With little or no load the box will stay up forever. (The imposed load

Please check out this PNG image from attachment or from Google docs: http://docs.google.com/drawings/pub?id=1P3jdSddseG1oSYrtjREWcajizxmxoRIhUHCEw4sDi3k&w=771&h=624So, what I want to do is something like a private cloud storage solution.I belive the http servers and application servers should be set up on virtual VMs, but what about the Cassandra and Hadloop servers, should their be set up

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.

Greeting all, I have a bit of a complicated question. I have two ethernet devices, eth1 and eth2. eth1 is where my internet comes from. It is in the form of 202.172.122.208/29. It has another IP range, 202.172.122.72/29. What I want to be able to do is route 202.172.122.72/29 to eth2, so that other machines can use those IPs, any ideas on how to do this, I cannot work out how to do this.

G'afternoon everybody, I'm having a problem with consistently being able to ring our extensions from an outside line. I don't have a problem reaching the number, but during our calls to Background(msg) that I am having a problem. It seems to be an issue with timing. If I press the extension towards the end of the Background(msg) the it often works. However, in the middle of the

Hi ceph-ers, The email below was posted on the ceph mailinglist yesterday by Wido den Hollander. I guess this could be interesting for user here as well. MJ -------- Forwarded Message -------- Subject: [ceph-users] librmb: Mail storage on RADOS with Dovecot Date: Thu, 21 Sep 2017 10:40:03 +0200 (CEST) From: Wido den Hollander <wido at 42on.com> To: ceph-users at ceph.com Hi, A tracker

Hi, i'm a newbie running Asterisk 1.2.1 with Cisco 7940/7960 SIP version 7.4 phones. Is there any way in the dial plan or other mystical conf file to allow a user whose extension is presently ringing to press a button on their phone that would instantly send the incoming call to the called user's voice mail without "answering" the call?? In example: i see from the CID

Hi, I have a number of servers running mongrel cluster all of whom feed off of a shared filesystem (OCFS2). Each cluster has its own mongrel_cluster_web2.yml file with distinct PID and Log file names. In theory they shouldn''t be aware of each other''s presence. What I have found is that when I want to test a new set of code on one server and I shut one server''s mongrel

Hello everyone, I wasn't planning on sending out v0.4 until ENOSPC was fixed, but Frank Groeneveld narrowed down a bug with the file data checksumming code on highmem 32bit machines. Basically the way I was using cryptomgr made it incorrectly calculate checksums on highmem pages. So to simplify things, I've switched over to plain libcrc32c. Anyone running on a 32 bit with highmem is