From jmpoure at free.fr Mon Jun 30 05:14:01 2008 From: jmpoure at free.fr (Jean-Michel =?ISO-8859-1?Q?Pour=E9?=) Date: Mon, 30 Jun 2008 12:14:01 +0200 Subject: [Variman] Information about Variman Message-ID: <1214820841.6753.7.camel@debian> Dear Friends, We are a French Charity and would like to start a free real-estate adds service, even without adds. We need a powerfull free software architecture. Our goal is to free the real-estate market. Do you recommand using Variman as a datastore and web service answering queries on heavy loads sites, for example 500 queries every second? ?Can Variam support such a load? Or should Variman only be used to exchange data (import/export)? In our first approach, we though this could be interesting to developp a high-load server based on PostgreSQL, server-side code and Apache bindings. Are you interested in such a project? Kind regards, Jean-Michel Pour? From kgarner at crt.realtors.org Mon Jun 30 09:02:36 2008 From: kgarner at crt.realtors.org (Keith T. Garner) Date: Mon, 30 Jun 2008 09:02:36 -0500 Subject: [Variman] Information about Variman In-Reply-To: <1214820841.6753.7.camel@debian> References: <1214820841.6753.7.camel@debian> Message-ID: On Jun 30, 2008, at 5:14 AM, Jean-Michel Pour? wrote: > We are a French Charity and would like to start a free real-estate > adds > service, even without adds. We need a powerfull free software > architecture. Our goal is to free the real-estate market. That's great. > Do you recommand using Variman as a datastore and web service > answering > queries on heavy loads sites, for example 500 queries every second? > Can > Variam support such a load? Honestly, we (CRT) haven't done load tests. However, it is in use at about 8 MLS's in the US and we rarely hear performance issue questions. A lot of it will come down to the database and its configuration as Variman, for the most part, is RETS wrapper around the database. Many of the performance issues in the past have been due to tuning the SQLServer JDBC driver. (Yes, sadly, most of the installs in the US are backended by SQLServer.) The good point of using Variman is you support the RETS protocol out of the box. While mostly used in the US, there is no reason RETS shouldn't be an international protocol. (And then people could using ezRETS and libRETS, other fine open source CRT projects, to get the data.) > Or should Variman only be used to exchange data (import/export)? An overwhelming majority of RETS clients in the US are designed for bulk-download, but RETS's aim was to be interactive. There is no reason just to use it in this mannor. > In our first approach, we though this could be interesting to > developp a > high-load server based on PostgreSQL, server-side code and Apache > bindings. Are you interested in such a project? That's more or less what Variman is, minus the apache bindings, as its written in Java and typically used with Tomcat. Keith -- Keith T. Garner - Managing Director - Center for REALTOR? Technology kgarner at realtors.org - 312-329-3294 - http://blog.realtors.org/crt From jm at poure.com Mon Jun 30 05:46:58 2008 From: jm at poure.com (Jean-Michel =?ISO-8859-1?Q?Pour=E9?=) Date: Mon, 30 Jun 2008 12:46:58 +0200 Subject: [Variman] Information about Variman : datastore server? Message-ID: <1214822818.6753.9.camel@debian> Dear Friends, We are a French Charity and would like to start a free real-estate adds service, even without adds. We need a powerfull free software architecture. Our goal is to free the real-estate market. Do you recommand using Variman as a datastore and web service answering queries on heavy loads sites, for example 500 queries every second? ?Can Variam support such a load? Or should Variman only be used to exchange data (import/export)? In our first approach, we though this could be interesting to developp a high-load server based on PostgreSQL, server-side code and Apache bindings. Are you interested in such a project? Kind regards, Jean-Michel Pour?