> Once they have fully joined the cluster I would like to decommission a single Cassandra 1.2.14 instance, and repeat.
Do not do this. Upgrade your nodes in place. On Thu Jan 29 2015 at 6:17:26 AM Sibbald, Charles <charles.sibb...@bskyb.com> wrote: > Hi All, > > I am looking into the possibility of upgrading from Cassandra 1.2.14 to > Cassandra 2.1 in the following manor. > > I have a large Cassandra cluster with dozens of nodes, and would like to > build new instances at version 2.1 to join the cluster and once they have > successfully joined the rink these should then stream data in. > > Once they have fully joined the cluster I would like to decommission a > single Cassandra 1.2.14 instance, and repeat. > > Due to the fact that our 2.1 installations have a different directory > layout we would like to go with this ‘streaming’ option for the upgrade > rather than an inplace upgrade. > > Does anyone foresee any issues with this. > > Thanks in advance. > > Regards > > Charles > Information in this email including any attachments may be privileged, > confidential and is intended exclusively for the addressee. The views > expressed may not be official policy, but the personal views of the > originator. If you have received it in error, please notify the sender by > return e-mail and delete it from your system. You should not reproduce, > distribute, store, retransmit, use or disclose its contents to anyone. > Please note we reserve the right to monitor all e-mail communication > through our internal and external networks. SKY and the SKY marks are > trademarks of British Sky Broadcasting Group plc and Sky International AG > and are used under licence. British Sky Broadcasting Limited (Registration > No. 2906991), Sky-In-Home Service Limited (Registration No. 2067075) and > Sky Subscribers Services Limited (Registration No. 2340150) are direct or > indirect subsidiaries of British Sky Broadcasting Group plc (Registration > No. 2247735). All of the companies mentioned in this paragraph are > incorporated in England and Wales and share the same registered office at > Grant Way, Isleworth, Middlesex TW7 5QD. >
