search for: rdms

Hi folks, I was recently made aware that the only way to currently set custom fields in a relational database for CDR is via the experimental cdr_adaptive_odbc drivers found here: http://svncommunity.digium.com/view/tilghman/branches/1.4/cdr_adaptive_odbc.c?view=log I had no problem compiling the driver, and copied the module to /usr/lib/asterisk/modules on my box and setup

...s for a DNS service that has a client interface for client APIs to access. I''d like to have all application requests and data updates/retrieval to go through this interface instead of a database. Should I even use Rails for something like this? Or is using Rails for something without an RDMS not worth it? Is replacing or subclassing ActiveRecord (which I heard is what I''d be doing) very time consuming? Worth it? I''d like to use Rails, but if this architecture is not feasable using Rails, then are there any other ruby frameworks that anyone could recommend? Thanks...

...e installs without complaint, but when I try to run con <- dbConnect(dbDriver("MySQL"),dbname="test") I get the error Error in dbConnect(dbDriver("MySQL")) : couldn't find function ".valueClassTest" (This is my first attempt to access a an rdms from R, so I could be doing something else wrong.) Any ideas as what might be generating this error, or as to combinations of rpms that will work under SuSE 8.2 would be appreciated. (I took a stab at compiling RMySQL from src, but I don't have MySQL src installed and I rather not get invo...

...for loading test data or for upgrading DBs schemas, or for porting DBs and other special data mangling outside the well-bevahed application CRUD functionality. So, I was thinking, why is FK contraints good? For one thing, they improve performance by indexing the FK fields (at least in the good RDMSes), but that can be done independently. And then, the most obvious reason and most beneficial, they enforce data integrity, ie, data don''t get lost because you didn''t set the FK the right value. But, as I said before this doesn''t come for free. So, if we use a good re...

...nd resiliency given the Equallogic provides the redundancy. Since I am hoping to provide a 2TB datastore I am thinking of carving out either 3 1TB luns or 6 500GB luns that will be RDM''d to the storage VM and within the storage server setting up either 1 raidz vdev with the 1TB luns (less RDMs) or 2 raidz vdevs with the 500GB luns (more fine grained expandability, work in 1TB increments). Given the 2GB of write-back cache on the Equallogic I think the integrated ZIL would work fine (needs benchmarking though). The vmdk files themselves won''t be backed up (more data then I can...

...marily) all the data needs to be in a single filesystem. However, this is running on an older VMware ESX server, and those have a 2TB LUN size limit. So, even though my EMC Clariion arrays can deal with 10TB LUNs without issue, the VMware ESX and all of its guests cannot. So, I have a lot of RDMs for the guests. The backup server's LVM looks like this: [root at backup-rdc ~]# pvscan PV /dev/sdd1 VG vg_opt lvm2 [1.95 TB / 0 free] PV /dev/sde1 VG vg_opt lvm2 [1.95 TB / 0 free] PV /dev/sdf1 VG vg_opt lvm2 [1.95 TB / 0 free] PV /dev/sda2 VG V...

Hello folks - I have been trying to figure this out. I have a set of very large files that are of this format , , , , 1/4/1999,9:31:00 AM,blah, blah, blah 1/4/1999,9:32:00 AM,blah, blah, blah 1/4/1999,9:33:00 AM,blah, blah, blah I want to write R code that reads only that data between a start and an end date (data is presented from oldest at the top of the file to the most recent at the bottom

Why am I getting the error "Error: cannot allocate vector of size 512000 Kb" on a machine with 6 GB of RAM? I'm playing with some large data sets within R and doing some simple statistics. The data sets have 10^6 and 10^7 rows of numbers. R reads in and performs summary() on the 10^6 set just fine. However, on the 10^7 set, R halts with the error. My hunch is that

Hi, We are haing some serious issues trying to configure an OCFS2 cluster on 3 SLES 10 SP2 boxes running in VMware ESX 3.0.1. Before I go into any of the detailed errors we are experiencing I first wanted to ask everyone if they have successfully configured this solution? We would be interested to find out what needs to be set at the VMware level (RDM, VMFS, NICS etc) and what needs to be

Hi All, I am trying to determine whether a mail server cluster based on Dovecot will be capable of supporting 500,000+ mailboxes with about 50,000 IMAP and 5000 active POP3 connections. I have looked at the Dovecot clustering suggestions here: http://blog.dovecot.org/2012/02/dovecot-clustering-with-dsync-based.html and some other Dovecot mailing list threads but I am not sure how many

Hello I''ve now read a lot about application-level authentication in Rails, but I need to do database-level authentication. The reason is that my database needs to have the current_user (database current_user, not current_user defined in an ActiveRecord Model) set to execute triggers for automatically updating audit tables. So it is not enough to have a session check against a User

I''ve seen a lot of issue regarding the stability of Rails apps. I''m charged with investigation of Rails for my company and I''ve looked at numerous fourms, groups, etc. (Textdrive, here, etc.) and it *seems* like there is a stability problem with Rails (ie: crashes, etc.) Is this as common as it looks, or is this tied to things like Lighttpd (web server) or Typo

It seems like everyone now has a RoR type framework: Perl: http://dev.catalyst.perl.org/ PHP: http://cakephp.org/ Python: http://www.django.com ASP.NET: http://www.castleproject.org/index.php/Main_Page etc., etc. Has a revolution begun with the birth of these "Web 2.0" frameworks? Its going to be interesting when the tech media begins its mass hype like it did SOAP, XML, etc. a