Agree with Jeff here, using auto_bootstrap:false is probably not what you want.
Have you increased your streaming throughput? Upgrading to 3.11 might reduce the time by quite a bit: https://issues.apache.org/jira/browse/CASSANDRA-9766 You'd be doing committers a huge favor if you grabbed some histograms and flame graphs on both the sending an receiving nodes: http://thelastpickle.com/blog/2018/01/16/cassandra-flame-graphs.html and sent them to the dev mailing list. On Wed, Nov 28, 2018 at 3:59 AM Jeff Jirsa <jji...@gmail.com> wrote: > This violates any consistency guarantees you have and isn’t the right > approach unless you know what you’re giving up (correctness, typically) > > -- > Jeff Jirsa > > > On Nov 28, 2018, at 2:40 AM, Vitali Dyachuk <vdjat...@gmail.com> wrote: > > You can use auto_bootstrap set to false to add a new node to the ring, it > will calculate the token range for the new node, but will not start > streaming the data. > In this case you can add several nodes into the ring quickly. After that > you can start nodetool rebuild -dc <> to start streaming data. > In your case 50Tb of data per node is quite a large amount of data i would > recommend, based on own experience keeping 1Tb per node, since when > streaming can be interrupted for some reason and it cannot be resumed so > you'll have to restart streaming. Also there will be compaction problems. > > Vitali. > On Wed, Nov 28, 2018 at 12:03 PM Osman YOZGATLIOĞLU < > osman.yozgatlio...@krontech.com> wrote: > >> Hello, >> >> I have 2 dc cassandra 3.0.14 setup. I need to add 2 new nodes to each dc. >> >> I started one node in dc1 and its already joining. 3TB of 50TB finished >> in 2 weeks. One year ttl time series data with twcs. >> >> I know, its not best practise.. >> >> I want to start one node in dc2 and cassandra refused to start with >> mentioning already one node in joining state. >> >> I find some workaround with jmx directives, but i'm not sure if I broke >> something on the way. >> >> Is it wise to bootstrap in both dc at the same time? >> >> >> Regards, >> >> Osman >> > -- Jon Haddad http://www.rustyrazorblade.com twitter: rustyrazorblade
