I have been looking into our use of Linux HA to setup an Active-Passive configuration. Testing indicates that in 4.1 (beta1), several objects seem not to be persisted properly. This includes at least:
- Cartridges - Deployment policies Am I missing something? Is it safe to workaround this by replaying those objects? ________________________________ From: Imesh Gunaratne [im...@apache.org] Sent: 23 April 2015 10:47 To: dev Subject: Re: Clustered deployments of Stratos Hi Shaheed, Currently N-way clustering is still not possible with CC, AS & SM. We completed the initial phase of this feature however it was not completed. You could refer mail thread "[Discuss] Clustering Feature Implementation for 4.1.0-Alpha Release" for details. However at present [1] is valid. We could use Linux HA and deploy CC, AS and SM in Active-Passive mode. Thanks On Thu, Apr 23, 2015 at 2:41 PM, Shaheedur Haque (shahhaqu) <shahh...@cisco.com<mailto:shahh...@cisco.com>> wrote: Hi, We currently try to achieve HA with Stratos using something so unpleasant that I won’t even describe it here :). It has been suggested that Stratos has, for a while now, supported a clustered mode of deployment where, given N servers: • The SM, AS and MB operate in a N-way clustered mode • The CEP operates in a N-way loadsharing mode • The Cartridge Agents can react to a failure in one of the N CEPs by failing over to one of the other N-1 remaining servers In looking for documentation on how to set this up, I came across these two write-ups [1] and [2]. Questions: • Both these documents mention only using N=2. Is that still correct? • [1] Seems recently written, and [2] is a little older but not much. Are both documents still regarded as current? Also, I’d love to hear any other experiences people have of running configurations like this. Thanks, Shaheed [1] https://cwiki.apache.org/confluence/display/STRATOS/4.1.0+Configuring+HA+Using+Pacemaker+and+Heartbeat [2] http://blog.lasindu.com/2014/08/wso2-private-paas-supporting.html -- Imesh Gunaratne Technical Lead, WSO2 Committer & PMC Member, Apache Stratos
