OK. Thanks. I'll monitor the resources status (network, memory, cpu, io) as I go and try to bootsrap them at chunks which seems not to have a bad impact. Will do regarding the cleanup.
Thanks! On Mon, Apr 20, 2015 at 4:08 PM, Carlos Rolo <r...@pythian.com> wrote: > Independent of the snitch, data needs to travel to the new nodes (plus all > the keyspace information that goes via gossip). So I won't bootstrap them > all at once, even if it is only for network traffic generated. > > Don't forget to run cleanup on the old nodes once all nodes are in place to > reclaim disk space. > > Regards, > > Carlos Juzarte Rolo > Cassandra Consultant > > Pythian - Love your data > > rolo@pythian | Twitter: cjrolo | Linkedin: linkedin.com/in/carlosjuzarterolo > Mobile: +31 6 159 61 814 | Tel: +1 613 565 8696 x1649 > www.pythian.com > > On Mon, Apr 20, 2015 at 1:58 PM, Or Sher <or.sh...@gmail.com> wrote: >> >> Thanks for the response. >> Sure we'll monitor as we're adding nodes. >> We're now using 6 nodes on each DC. (We have 2 DCs) >> Each node contains ~800GB >> >> Do you know how rack configurations are relevant here? >> Do you see any reason to bootstrap them one by one if we're not using >> rack awareness? >> >> >> On Mon, Apr 20, 2015 at 2:49 PM, Carlos Rolo <r...@pythian.com> wrote: >> > Start one node at a time. Wait 2 minutes before starting each node. >> > >> > >> > How much data and nodes you have already? Depending on that, the >> > streaming >> > of data can stress on the resources you have. >> > I would recommend to start one and monitor, if things are ok, add >> > another >> > one. And so on. >> > >> > Regards, >> > >> > Carlos Juzarte Rolo >> > Cassandra Consultant >> > >> > Pythian - Love your data >> > >> > rolo@pythian | Twitter: cjrolo | Linkedin: >> > linkedin.com/in/carlosjuzarterolo >> > Mobile: +31 6 159 61 814 | Tel: +1 613 565 8696 x1649 >> > www.pythian.com >> > >> > On Mon, Apr 20, 2015 at 11:02 AM, Or Sher <or.sh...@gmail.com> wrote: >> >> >> >> Hi all, >> >> In the near future I'll need to add more than 10 nodes to a 2.0.9 >> >> cluster (using vnodes). >> >> I read this documentation on datastax website: >> >> >> >> >> >> http://docs.datastax.com/en/cassandra/2.0/cassandra/operations/ops_add_node_to_cluster_t.html >> >> >> >> In one point it says: >> >> "If you are using racks, you can safely bootstrap two nodes at a time >> >> when both nodes are on the same rack." >> >> >> >> And in another is says: >> >> "Start Cassandra on each new node. Allow two minutes between node >> >> initializations. You can monitor the startup and data streaming >> >> process using nodetool netstats." >> >> >> >> We're not using racks configuration and from reading this >> >> documentation I'm not really sure is it safe for us to bootstrap all >> >> nodes together (with two minutes between each other). >> >> I really hate the tought of doing it one by one, I assume it will take >> >> more than 6H per node. >> >> >> >> What do you say? >> >> -- >> >> Or Sher >> > >> > >> > >> > -- >> > >> > >> > >> >> >> >> -- >> Or Sher > > > > -- > > > -- Or Sher
