Hepp! Just to be clear, I'm not claiming this to be the case, it is a sincere question. My team is planning an upgrade from 2.2 to 3.0 which is why I'm asking. Some initial tests indicate that repairs etc work well before running upgradesstables (assuming all nodes are upgraded to 3.0). But if there are known corner cases I'd be interested to know.
We need to support reading old sstables in order to support rolling upgrades. This seem to be a general assumption that people agree on. I'm not sure there is a clear agreement on the streaming part. Would it make sense to clarify this in documentation? /pelle -----Original Message----- From: Jeff Jirsa [mailto:jji...@gmail.com] Sent: den 13 oktober 2017 08:09 To: dev@cassandra.apache.org Subject: Re: Do it need to run 'nodetool upgradesstables' when updating from 2.0.9 to 2.1.19? Two people say I’m wrong, I’ll believe it - must be imagining restrictions that don’t exist. -- Jeff Jirsa > On Oct 12, 2017, at 10:55 PM, Per Otterström <per.otterst...@ericsson.com> > wrote: > > Hi! > > This was news to me. I had the impression that we are maintaining backwards > compatibility for streaming non-upgraded sstables. Is that not the case? > > However, I believe it is a good idea to run upgradesstables at some point > _before_ upgrading Cassandra next time to make sure there are no old sstables > around before you take the next step. > > /pelle > > -----Original Message----- > From: Jeff Jirsa [mailto:jji...@gmail.com] > Sent: den 12 oktober 2017 23:11 > To: Cassandra DEV <dev@cassandra.apache.org> > Subject: Re: Do it need to run 'nodetool upgradesstables' when updating from > 2.0.9 to 2.1.19? > > You won't notice any issues (all versions of cassandra are backwards > compatible at least 1 version), and sstables will be slowly migrated to the > new format as you compact, but you should still run it (upgradesstables) > explicitly because when it comes time to run > repair/boostrap/decommission/etc, you'll need all sstables on the > same/current format. > > > > On Thu, Oct 12, 2017 at 1:59 PM, Li, Guangxing <guangxing...@pearson.com> > wrote: > >> Hi, >> >> I recently upgraded my test cluster from C* 2.0.9 to 2.1.19 and I did >> not run 'nodetool upgradesstables' at all. Per my confirmation >> afterwards, everything is fine. But according to documentation at >> https://support.datastax.com/hc/en-us/articles/208040036- >> Nodetool-upgradesstables-FAQ. >> I need to do that. >> So can someone tell me if I must do 'nodetool upgradesstables' after >> upgrading each node from 2.0.9 to 2.1.19? >> >> Thanks. >> >> George. >> > B‹KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKCB•È [œÝXœØÜšX™KK[XZ[ ˆ]‹][œÝXœØÜšX™PØ\ÜØ[™ ˜K˜\XÚK›Ü™ÃB‘›ÜˆY][Û˜[ÛÛ[X[™ ËK[XZ[ ˆ]‹Z[ Ø\ÜØ[™ ˜K˜\XÚK›Ü™ÃBƒB --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@cassandra.apache.org For additional commands, e-mail: dev-h...@cassandra.apache.org
