On 06/02/2016 10:06 AM, Hochmuth, Roland M wrote:
> Hi Jaesuk, The change in InfluxDB licensing was announced in the blog at, 
> https://influxdata.com/blog/update-on-influxdb-clustering-high-availability-and-monetization/.
>  Up until that announcement, InfluxDB was planning on supporting all their 
> clustering and HA capabilities in the open-source version, which is one of 
> the reasons we had added it to Monasca.
> 
> There has been some discussion on supporting other databases in Monasca. Due 
> to performance and reliability concerns with InfluxDB, we had started looking 
> at Cassandra as an alternative. There are several reviews to look at if you 
> are interested at, https://review.openstack.org/#/q/monasca+cassandra. Shinya 
> Kawabata has been looking into Cassandra most recently.

I'm sad that InfluxDB has decided to turn Open Core - but I'm glad that
work was already underway to look at Cassandra. Well done.

> I looked at OpenTSDB several years ago. There are several concerns with 
> OpenTSDB, but the more significant one for us has been around deployment, as 
> it requires HBase which is built on HDFS. If you already have Hadoop, HDFS 
> and Hbase deployed then OpenTSDB is an incremental addition, but if you 
> don't, it is a significant investment. At the time that I had evaluated 
> OpenTSDB performance was not on-par with the other alternatives I considered.
> 
> Regards --Roland
> 
> From: Jaesuk Ahn <bluejay....@gmail.com<mailto:bluejay....@gmail.com>>
> Reply-To: OpenStack List 
> <openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>>
> Date: Monday, May 30, 2016 at 9:59 AM
> To: OpenStack List 
> <openstack-dev@lists.openstack.org<mailto:openstack-dev@lists.openstack.org>>
> Subject: [openstack-dev] [Monasca] influxDB clustering and HA will be 
> "commercial option".
> 
> Hi, Monasca developers and users,
> 
> https://influxdata.com/blog/update-on-influxdb-clustering-high-availability-and-monetization/
> "For our current and future customers, we’ll be offering clustering and high 
> availability through Influx Cloud, our managed hosting offering, and Influx 
> Enterprise, our on-premise offering, in the coming months.”
> 
> 
> It seems like “clustering” and “high availablity” of influxDB will be 
> available only in commercial version.
> Monasca is currently leveraging influxDB as a metrics and alarm database. 
> Beside vertical, influxDB is currently only an open source option to use.
> 
> With this update stating “influxDB open source sw version will not have 
> clustering / ha feature”,
> I would like to know if there has been any discussion among monasca community 
> to add more database backend rather than influxDB, especially OpenTSDB.
> 
> 
> Thank you.
> 
> 
> 
> 
> 
> --
> Jaesuk Ahn, Ph.D.
> Software Defined Infra Tech. Lab.
> SKT
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