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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple style='word-wrap: break-word;-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'><div class=WordSection1><p class=MsoNormal><span style='color:#1F497D'>Thanks to all for the replies.<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>Doug<o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael Squires [mailto:msquires@whitepages.com] <br><b>Sent:</b> Monday, May 09, 2011 3:51 PM<br><b>To:</b> Little, Douglas; slony1-general@lists.slony.info<br><b>Subject:</b> Re: [Slony1-general] Slony use cases<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'>Since we use Slony (2.0.3) here for some things, and also run Greenplum, I asked one of our DBAs about this. Here is his reply:<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='color:#1F497D'>Greenplum will not work with Slony since Greenplum's trigger has a major limitation. </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'> </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'>The Greenplum trigger function doesn't allow any SQL execution or modification of the database. So Slony will not work since it relies on triggers to replicate.</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:#1F497D'><br>See Sing</span><span style='color:black'><o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'><o:p> </o:p></span></p></div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='color:black'>From: </span></b><span style='color:black'>"Little, Douglas" <<a href="mailto:DOUGLAS.LITTLE@orbitz.com">DOUGLAS.LITTLE@orbitz.com</a>><br><b>Date: </b>Mon, 9 May 2011 12:35:11 -0700<br><b>To: </b>"<a href="mailto:slony1-general@lists.slony.info">slony1-general@lists.slony.info</a>" <<a href="mailto:slony1-general@lists.slony.info">slony1-general@lists.slony.info</a>><br><b>Subject: </b>[Slony1-general] Slony use cases<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:10.5pt;color:black'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span style='color:black'>Hi,<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>We use greenplum (based on PG 8.2.13) for our data warehouse. We’re on a 10node system, with 1 master that coordinates the work. We use before row triggers a lot to implement at rest encryption.<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>We’re bringing up an additional system an need a mechanism for keeping the two clusters in sync. <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>We have a large installation (14000 tables, 14TB). It’s mostly batch updated, with most tables only getting <100k inserts/updates per day. Our biggest table might do 5m rows/day. <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>We have about 1500 core tables that we’d want to replicate. <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Could people comment on if this would be an appropriate use case for slony?<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'>Thanks<o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Doug Little</span></b><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:12.0pt;color:black'> </span></b><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>Sr. Data Warehouse Architect | Business Intelligence Architecture | Orbitz Worldwide </span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'>500 W. Madison, Suite 1000 Chicago IL 60661| Office 312.260.2588 | Fax 312.894.5164 | Cell 847-997-5741</span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><a href="mailto:Douglas.Little@orbitz.com" title="mailto:dlittle@orbitz.com"><b>Douglas.Little@orbitz.com</b></a></span><span style='color:black'><o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <img border=0 width=83 height=61 id="Picture_x0020_1" src="cid:image001.jpg@01CC0E6C.2F10F8C0" alt="cid:image001.jpg@01CABEC8.D4980670"> <a href="http://www.orbitz.com/" title="http://www.orbitz.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>orbitz.com</span></a> </span><span style='color:blue'>|</span><span style='color:black'> <a href="http://www.ebookers.com/" title="http://www.ebookers.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>ebookers.com</span></a> </span><span style='color:blue'>|</span><span style='color:black'> <a href="http://www.hotelclub.com/" title="http://www.hotelclub.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>hotelclub.com</span></a> </span><span style='color:blue'>|</span><span style='color:black'> <a href="http://www.cheaptickets.com/" title="http://www.cheaptickets.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>cheaptickets.com</span></a> </span><span style='color:blue'>|</span><span style='color:black'> <a href="http://www.ratestogo.com/" title="http://www.ratestogo.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>ratestogo.com</span></a></span><span style='color:blue'> |</span><span style='color:black'> <a href="http://www.asiahotels.com/" title="http://www.asiahotels.com/"><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'>asiahotels.com</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='color:black'> <o:p></o:p></span></p></div></div></div></body></html>