Even more, 3.0.9 is a terrible target choice by itself. It has a nasty bug corrupting sstables on alter.
On Sat, Dec 1, 2018 at 11:55 AM Marc Selwan <marc.sel...@datastax.com> wrote: > Hi Shravan, > > Did you upgrade Apache Cassandra 2.1.9 to the latest patch release before > doing the major upgrade? It's generally favorable to go to the latest patch > release as often times they include fixes that smooth over the upgrade > process. There are hundreds of bug fixes between 2.1.9 and 2.1.20 (current > version) > > Best, > Marc > > On Fri, Nov 30, 2018 at 3:13 PM Shravan R <skr...@gmail.com> wrote: > >> Hello, >> >> I am planning to upgrade Apache Cassandra 2.1.9 to Apache >> Cassandra-3.0.9. I came up with the version based on [1]. I followed >> upgrade steps as in [2]. I was testing the same in the lab and encountered >> issues (streaming just fails and hangs for ever) with bootstrapping a 3.0.9 >> node on a partially upgraded cluster. [50% of nodes on 2.1.9 and 50% on >> 3.0.9]. The production cluster that I am supporting is pretty large and I >> am anticipating to end up in a situation like this (Hope not) and would >> like to be prepared. >> >> 1) How do deal with decommissioning a 2.1.9 node in a partially upgraded >> cluster? >> 2) How to bootstrap a 3.x node to a partially upgraded cluster? >> 3) Is there an alternative approach to the upgrade large clusters. i.e >> instead of going through nodetool upgradesstables on each node in rolling >> fashion >> >> >> As per [1] the general restriction is to avoid decommissioning or adding >> nodes but in reality there can be failures or maintenance that warrants us >> to do so. >> >> >> Please point me in the right direction. >> >> >> Thanks, >> Shravan >> >> >> [1] >> https://docs.datastax.com/en/upgrade/doc/upgrade/datastax_enterprise/upgdDSE50.html#upgdDSE50__cstar-version-change >> >> [2] >> https://myopsblog.wordpress.com/2017/12/04/upgrade-cassandra-cluster-from-2-x-to-3-x/ >> <https://urldefense.proofpoint.com/v2/url?u=https-3A__myopsblog.wordpress.com_2017_12_04_upgrade-2Dcassandra-2Dcluster-2Dfrom-2D2-2Dx-2Dto-2D3-2Dx_&d=DwMFaQ&c=adz96Xi0w1RHqtPMowiL2g&r=E6NVfMr2TIhW42QMfARTvsfCLtdF-oEA3KfAQRfVZdk&m=zbxL9Z9UjZMSVoHeue5w2ch4V1n65VR39w0_ysPWhBc&s=Ef6f6CfzIk0DBt3xD3fBmBhsfU8Yc2lv7YnIgiTWLMg&e=> >> >> -- > Marc Selwan | DataStax | Product Management | (925) 413-7079 > > >
