Re: How seed nodes are working and how to upgrade/replace them?

2019-01-09 Thread Jonathan Ballet
On Tue, 8 Jan 2019 at 18:29, Jeff Jirsa wrote: > Given Consul's popularity, seems like someone could make an argument that > we should be shipping a consul-aware seed provider. > Elasticsearch has a very handy dedicated file-based discovery system:

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-09 Thread Jonathan Ballet
On Tue, 8 Jan 2019 at 18:39, Jeff Jirsa wrote: > On Tue, Jan 8, 2019 at 8:19 AM Jonathan Ballet wrote: > >> Hi Jeff, >> >> thanks for answering to most of my points! >> From the reloadseeds' ticket, I followed to >> https://issues.apache.org/jira/browse/CASSANDRA-3829 which was very >>

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-08 Thread Jonathan Haddad
I've done some gossip simulations in the past and found virtually no difference in the time it takes for messages to propagate in almost any sized cluster. IIRC it always converges by 17 iterations. Thus, I completely agree with Jeff's comment here. If you aren't pushing 800-1000 nodes, it's

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-08 Thread Jeff Jirsa
On Tue, Jan 8, 2019 at 8:19 AM Jonathan Ballet wrote: > Hi Jeff, > > thanks for answering to most of my points! > From the reloadseeds' ticket, I followed to > https://issues.apache.org/jira/browse/CASSANDRA-3829 which was very > instructive, although a bit old. > > > On Mon, 7 Jan 2019 at

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-08 Thread Jeff Jirsa
Given Consul's popularity, seems like someone could make an argument that we should be shipping a consul-aware seed provider. On Tue, Jan 8, 2019 at 7:39 AM Jonathan Ballet wrote: > On Mon, 7 Jan 2019 at 16:51, Oleksandr Shulgin < > oleksandr.shul...@zalando.de> wrote: > >> On Mon, Jan 7, 2019

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-08 Thread Jonathan Ballet
Hi Jeff, thanks for answering to most of my points! >From the reloadseeds' ticket, I followed to https://issues.apache.org/jira/browse/CASSANDRA-3829 which was very instructive, although a bit old. On Mon, 7 Jan 2019 at 17:23, Jeff Jirsa wrote: > > On Jan 7, 2019, at 6:37 AM, Jonathan Ballet

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-08 Thread Jonathan Ballet
On Mon, 7 Jan 2019 at 16:51, Oleksandr Shulgin wrote: > On Mon, Jan 7, 2019 at 3:37 PM Jonathan Ballet wrote: > >> >> I'm working on how we could improve the upgrades of our servers and how >> to replace them completely (new instance with a new IP address). >> What I would like to do is to

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-07 Thread Jeff Jirsa
> On Jan 7, 2019, at 8:23 AM, Jeff Jirsa wrote: > > > > >> On Jan 7, 2019, at 6:37 AM, Jonathan Ballet wrote: >> >> Hi, >> >> I'm trying to understand how seed nodes are working, when and how do they >> play a part in a Cassandra cluster, and how they should be managed and >>

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-07 Thread Jeff Jirsa
> On Jan 7, 2019, at 6:37 AM, Jonathan Ballet wrote: > > Hi, > > I'm trying to understand how seed nodes are working, when and how do they > play a part in a Cassandra cluster, and how they should be managed and > propagated to other nodes. > > I have a cluster of 6 Cassandra nodes

Re: How seed nodes are working and how to upgrade/replace them?

2019-01-07 Thread Oleksandr Shulgin
On Mon, Jan 7, 2019 at 3:37 PM Jonathan Ballet wrote: > > I'm working on how we could improve the upgrades of our servers and how to > replace them completely (new instance with a new IP address). > What I would like to do is to replace the machines holding our current > seeds (#1 and #2 at the

How seed nodes are working and how to upgrade/replace them?

2019-01-07 Thread Jonathan Ballet
Hi, I'm trying to understand how seed nodes are working, when and how do they play a part in a Cassandra cluster, and how they should be managed and propagated to other nodes. I have a cluster of 6 Cassandra nodes (let's call them #1 to #6), on which node #1 and #2 are seeds. All the