Thanks Aaron. I tried to migrate existing cluster(ver 1.1.0) to 1.2.1 but failed.
- I followed http://www.datastax.com/docs/1.2/install/upgrading, have merged cassandra.yaml, with follow parameter num_tokens: 256 #initial_token: 0 the initial_token is commented out, current token should be obtained from system schema - I did rolling upgrade, during the upgrade, I got "Borken Pipe" error from the nodes with old version, is that normal? - After I upgraded 3 nodes(still have 5 to go), I found it is total wrong, the first node upgraded owns 99.2 of ring [cassy@d5:/usr/local/cassy conf]$ ~/bin/nodetool -h localhost status Datacenter: datacenter1 ======================= Status=Up/Down |/ State=Normal/Leaving/Joining/Moving -- Address Load Tokens Owns Host ID Rack DN 10.210.101.117 45.01 GB 254 99.2% f4b6afe3-7e2e-4c61-96e8-12a529a31373 rack1 UN 10.210.101.120 45.43 GB 256 0.4% 0fd912fb-3187-462b-8c8a-7d223751b649 rack1 UN 10.210.101.111 27.08 GB 256 0.4% bd4c37bc-07dd-488b-bfab-e74e32c26f6e rack1 What was wrong? please help. I could provide more information if you need. Thanks, Daning On Mon, Feb 4, 2013 at 9:16 AM, aaron morton <aa...@thelastpickle.com>wrote: > There is a command line utility in 1.2 to shuffle the tokens… > > http://www.datastax.com/dev/blog/upgrading-an-existing-cluster-to-vnodes > > $ ./cassandra-shuffle --help > Missing sub-command argument. > Usage: shuffle [options] <sub-command> > > Sub-commands: > create Initialize a new shuffle operation > ls List pending relocations > clear Clear pending relocations > en[able] Enable shuffling > dis[able] Disable shuffling > > Options: > -dc, --only-dc Apply only to named DC (create only) > -tp, --thrift-port Thrift port number (Default: 9160) > -p, --port JMX port number (Default: 7199) > -tf, --thrift-framed Enable framed transport for Thrift (Default: > false) > -en, --and-enable Immediately enable shuffling (create only) > -H, --help Print help information > -h, --host JMX hostname or IP address (Default: localhost) > -th, --thrift-host Thrift hostname or IP address (Default: JMX > host) > > Cheers > > ----------------- > Aaron Morton > Freelance Cassandra Developer > New Zealand > > @aaronmorton > http://www.thelastpickle.com > > On 3/02/2013, at 11:32 PM, Manu Zhang <owenzhang1...@gmail.com> wrote: > > On Sun 03 Feb 2013 05:45:56 AM CST, Daning Wang wrote: > > I'd like to upgrade from 1.1.6 to 1.2.1, one big feature in 1.2 is > that it can have multiple tokens in one node. but there is only one > token in 1.1.6. > > how can I upgrade to 1.2.1 then breaking the token to take advantage > of this feature? I went through this doc but it does not say how to > change the num_token > > http://www.datastax.com/docs/1.2/install/upgrading > > Is there other doc about this upgrade path? > > Thanks, > > Daning > > > I think for each node you need to change the num_token option in > conf/cassandra.yaml (this only split the current range into num_token > parts) and run the bin/cassandra-shuffle command (this spread it all over > the ring). > > >
