Hi Adrian, comments inline.
On 06-Jun-2014, at 6:46 am, Adrian Lewis <[email protected]> wrote: > Hi all, > > Does anyone have any example configs or blog posts explaining the DB HA > features introduced in 4.3? Between the section in the design docs on the > wiki and the official docs, I’m a little confused as to how it’s supposed > to be set up – they appear to differ although there’s a lot more detail in > the design docs. Some of it is clearly MySQL stuff that’s outside of > Cloudstack but some of it is Cloudstack config as well. I’m just trying to > get a feel for what is the best way to use what’s made it into 4.3 final > (if different to the design docs). I’m not too strong on MySQL so I can’t > easily work out what’s a requirement, what’s just recommended (and > implications) and what the Cloudstack side actually does. Is the CS side > purely for failover or does it actually set up part of the replication for > you? Can you easily enable an existing DB for HA or is this best done > before there’s any data? Before you run cloudstack-setup-databases? I had a cursory look at the DB HA capabilities in ACS 4.3.0 when it was released. The DB HA is actually a feature of MySQL JDBC(?) drivers that ACS is compiled where one can provide a list of mysql masters instead of a single MySQL server. The configration simply be as simple as installing a MySQL clustering suite (Galera/Percona Cluster/other MySQL clustering solutions) and then running the cloudstack-setup-* as usual pointing to one of the DB masters. Once the cloudstack-setup-* is completed, edit the config file and update the DB list with all the masters. IIRC, these are comma separeted. > Shanker – I don’t suppose this subject could add to your already excellent > blog post collection? Excellent suggestion. Let me give Galera a shot over the weekend. Regards. @shankerbalan -- @shankerbalan M: +91 98860 60539 | O: +91 (80) 67935867 [email protected] | www.shapeblue.com | Twitter:@shapeblue ShapeBlue Services India LLP, 22nd floor, Unit 2201A, World Trade Centre, Bangalore - 560 055 Find out more about ShapeBlue and our range of CloudStack related services IaaS Cloud Design & Build<http://shapeblue.com/iaas-cloud-design-and-build//> CSForge – rapid IaaS deployment framework<http://shapeblue.com/csforge/> CloudStack Consulting<http://shapeblue.com/cloudstack-consultancy/> CloudStack Infrastructure Support<http://shapeblue.com/cloudstack-infrastructure-support/> CloudStack Bootcamp Training Courses<http://shapeblue.com/cloudstack-training/> This email and any attachments to it may be confidential and are intended solely for the use of the individual to whom it is addressed. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Shape Blue Ltd or related companies. If you are not the intended recipient of this email, you must neither take any action based upon its contents, nor copy or show it to anyone. Please contact the sender if you believe you have received this email in error. Shape Blue Ltd is a company incorporated in England & Wales. ShapeBlue Services India LLP is a company incorporated in India and is operated under license from Shape Blue Ltd. Shape Blue Brasil Consultoria Ltda is a company incorporated in Brasil and is operated under license from Shape Blue Ltd. ShapeBlue is a registered trademark.
