Also, typically how long does it take for a node to join? I have in total 1 TB of data in 15 nodes cassandra cluster.
On Fri, Mar 20, 2015 at 10:53 AM, Pranay Agarwal <agarwalpran...@gmail.com> wrote: > 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 >>>> >>>> >>>> >>> >> >
