Thank Rahul, you are right. Unless the node complete joins the ring, there is no data dependency on them.
On Fri, Mar 20, 2015 at 4:46 AM, Rahul Neelakantan <ra...@rahul.be> wrote: > You won't lose data unless you have run nodetool cleanup on the existing > nodes. > > Rahul > > On Mar 19, 2015, at 9:16 PM, Pranay Agarwal <agarwalpran...@gmail.com> > wrote: > > Also, the new nodes (3 of them, in *UJ state*) are showing some data size > (~10g). Is there any data loss chances with stopping the cassandra on them? > > On Thu, Mar 19, 2015 at 6:02 PM, Pranay Agarwal <agarwalpran...@gmail.com> > wrote: > >> Thanks Rob, You are right. I am using ReleaseVersion: 2.1.0 >> >> What do you mean by point 3? Also, by doing one at a time, does it mean >> wait till nodetool status of the new node is UN from UJ? >> >> On Thu, Mar 19, 2015 at 5:44 PM, Robert Coli <rc...@eventbrite.com> >> wrote: >> >>> On Thu, Mar 19, 2015 at 5:32 PM, Pranay Agarwal < >>> agarwalpran...@gmail.com> wrote: >>> >>>> I have 14 nodes cassandra cluster, each node as around 50gb of data. I >>>> added 3 new nodes to the cluster and I can see the status as *UJ *for >>>> the new nodes. They have been in that for almost a day now and their data >>>> size seems to be same as well. There is almost no CPU or disk usage either >>>> on them. >>>> >>> >>> It is not supported to add multiple nodes to a cluster simultaneously >>> until 2.1.1 [1]. Usually what happens is one or more of the bootstraps >>> fails and hangs forever. This seems to be what has happened to you. >>> >>> To resolve : >>> >>> 1) stop each of the bootstrapping nodes >>> 2) wipe their data directories completey >>> 3) verify that they do not show up in gossip on the other nodes >>> 4) bootstrap them again, one at a time >>> >>> =Rob >>> [1] https://issues.apache.org/jira/browse/CASSANDRA-7069 >>> >>> >>> >> >
