On Tue, Aug 5, 2014 at 11:40 AM, Lu, Boying <boying...@emc.com> wrote:
> What I want to know is “are the *strategy* changed ?’ after the ‘udpate > keyspace with strategy_options…’ command returns successfully > Like all schema changes, not necessarily on all nodes. You will have to check for schema agreement between nodes. > Not the *data* change. > > > > e.g. say I run the command ‘update keyspace with strategy_opitons [dc1: 3, > dc2:3]’ , when this command returns, > > are the *strategy* options already changed? Or I need to wait some time > for the strategy to be changed? > > > > > > *From:* Sylvain Lebresne [mailto:sylv...@datastax.com] > *Sent:* 2014年8月5日 16:59 > *To:* user@cassandra.apache.org > > *Subject:* Re: A question about using 'update keyspace with > strategyoptions' command > > > > Changing the strategy options, and in particular the replication factor, > does not perform any data replication by itself. You need to run a repair > to ensure data is replicated following the new replication. > > > > On Tue, Aug 5, 2014 at 10:52 AM, Lu, Boying <boying...@emc.com> wrote: > > Thanks. yes. I can use the ‘show keyspace’ command to check and see the > strategy does changed. > > > > But what I want to know is if the ‘update keyspace with strategy_options > …’ command is > > a ‘sync’ operation or a ‘async’ operation. > > > > > > > > *From:* Rahul Menon [mailto:ra...@apigee.com] > *Sent:* 2014年8月5日 16:38 > *To:* user > *Subject:* Re: A question about using 'update keyspace with > strategyoptions' command > > > > Try the show keyspaces command and look for "Options" under each keyspace. > > > > Thanks > > Rahul > > > > On Tue, Aug 5, 2014 at 2:01 PM, Lu, Boying <boying...@emc.com> wrote: > > Hi, All, > > > > I want to run ‘update keyspace with strategy_options={dc1:3, dc2:3}’ from > cassandra-cli to update the strategy options of some keyspace > > in a multi-DC environment. > > > > When the command returns successfully, does it mean that the strategy > options have been updated successfully or I need to wait > > some time for the change to be propagated to all DCs? > > > > Thanks > > > > Boying > > > > > > >
