Yes it causes issues
-- Jeff Jirsa > On Jan 27, 2018, at 12:17 PM, Kant Kodali <k...@peernova.com> wrote: > > Schema changes I assume you guys are talking about different create table or > alter table statements. What if multiple threads issue same exact create > table if not exists statement? Will that cause issues? > > Sent from my iPhone > >> On Jan 27, 2018, at 11:41 AM, Carlos Rolo <r...@pythian.com> wrote: >> >> Don't do that. Worst case you might get different schemas in flight and no >> agreement on your cluster. If you are already doing that, check "nodetool >> describecluster" after you do that. >> >> Like Jeff said, it is likely to cause problems. >> >> Regards, >> >> Carlos Juzarte Rolo >> Cassandra Consultant / Datastax Certified Architect / Cassandra MVP >> >> Pythian - Love your data >> >> rolo@pythian | Twitter: @cjrolo | Skype: cjr2k3 | Linkedin: >> linkedin.com/in/carlosjuzarterolo >> Mobile: +351 918 918 100 >> www.pythian.com >> >>> On Sat, Jan 27, 2018 at 7:25 PM, Jeff Jirsa <jji...@gmail.com> wrote: >>> It’s not LWT. Don’t do programmatic schema changes that can race, it’s >>> likely to cause problems >>> >>> >>> -- >>> Jeff Jirsa >>> >>> >>> > On Jan 27, 2018, at 10:19 AM, Kant Kodali <k...@peernova.com> wrote: >>> > >>> > Hi All, >>> > >>> > What happens if multiple processes send create table if not exist >>> > statement to cassandra? will there be any data corruption or any other >>> > issues if I send "create table if not exist" request often? >>> > >>> > I dont see any entry in system.paxos table so is it fair to say "IF NOT >>> > EXISTS" doesn't automatically imply LWT? >>> > >>> > Thanks! >>> >>> --------------------------------------------------------------------- >>> To unsubscribe, e-mail: user-unsubscr...@cassandra.apache.org >>> For additional commands, e-mail: user-h...@cassandra.apache.org >>> >> >> >> -- >> >> >> >>
