RE: [EXTERNAL] Re: Question on changing node IP address

2019-02-27 Thread Durity, Sean R
. From: Alexander Dejanovski Sent: Wednesday, February 27, 2019 9:22 AM To: user@cassandra.apache.org Subject: Re: [EXTERNAL] Re: Question on changing node IP address It has to be balanced with the dangers related to the PropertyFileSnitch. I've seen such incidents happen twice in the las

Re: [EXTERNAL] Re: Question on changing node IP address

2019-02-27 Thread Oleksandr Shulgin
On Wed, Feb 27, 2019 at 3:11 PM Durity, Sean R wrote: > We use the PropertyFileSnitch precisely because it is the same on every > node. If each node has to have a different file (for GPFS) – deployment is > more complicated. (And for any automated configuration you would have a > list of hosts an

Re: [EXTERNAL] Re: Question on changing node IP address

2019-02-27 Thread Alexander Dejanovski
It has to be balanced with the dangers related to the PropertyFileSnitch. I've seen such incidents happen twice in the last few months in different places and both times recovery was difficult and hazardous. I still strongly recommend against it. On Wed, Feb 27, 2019 at 3:11 PM Durity, Sean R wr

RE: [EXTERNAL] Re: Question on changing node IP address

2019-02-27 Thread Durity, Sean R
We use the PropertyFileSnitch precisely because it is the same on every node. If each node has to have a different file (for GPFS) – deployment is more complicated. (And for any automated configuration you would have a list of hosts and DC/rack information to compile anyway) I do put UNKNOWN as

Re: [EXTERNAL] Re: Question on changing node IP address

2019-02-26 Thread Oleksandr Shulgin
On Tue, Feb 26, 2019 at 3:26 PM Durity, Sean R wrote: > This has not been my experience. Changing IP address is one of the worst > admin tasks for Cassandra. System.peers and other information on each nodes > is stored by ip address. And gossip is really good at sending around the > old informati

RE: [EXTERNAL] Re: Question on changing node IP address

2019-02-26 Thread Durity, Sean R
This has not been my experience. Changing IP address is one of the worst admin tasks for Cassandra. System.peers and other information on each nodes is stored by ip address. And gossip is really good at sending around the old information mixed with new… Sean Durity From: Oleksandr Shulgin S