Re: How to come up with a predefined topology

2012-07-16 Thread aaron morton
;> strategy_options for a keyspace. You might want to look at the code to dig >> >> into that, perhaps. >> >> >> Whichever snitch you use, the nodes are sorted in order of proximity to >> >> the client node. How this is determined depends on the snitch

Re: How to come up with a predefined topology

2012-07-12 Thread prasenjit mukherjee
ted in order of proximity to > > the client node. How this is determined depends on the snitch that's used > > but most (the ones that ship with Cassandra) will use the default ordering > > of same-node < same-rack < same-datacenter < different-datacenter. Each > >

Re: How to come up with a predefined topology

2012-07-12 Thread aaron morton
gt;> the client node. How this is determined depends on the snitch that's used >>>> but most (the ones that ship with Cassandra) will use the default ordering >>>> of same-node < same-rack < same-datacenter < different-datacenter. Each >>>> snitch has me

Re: How to come up with a predefined topology

2012-07-12 Thread prasenjit mukherjee
< same-rack < same-datacenter < different-datacenter. Each >> > snitch has methods to tell Cassandra which rack and DC a node is in, so it >> > always knows which node is closest. Used with the Bloom filters this can >> > tell us where the nearest replica is. >&

Re: How to come up with a predefined topology

2012-07-11 Thread Tyler Hobbs
to tell Cassandra which rack and DC a node is in, so it > always knows which node is closest. Used with the Bloom filters this can > tell us where the nearest replica is. > > > > > > > > -Original Message- > > From: prasenjit mukherjee [mailto:p

Re: How to come up with a predefined topology

2012-07-11 Thread prasenjit mukherjee
replica is. > > > > -Original Message----- > From: prasenjit mukherjee [mailto:prasen@gmail.com] > Sent: 11 July 2012 06:33 > To: user > Subject: How to come up with a predefined topology > > Quoting from > http://www.datastax.com/docs/0.8/cluster_architecture/repl

RE: How to come up with a predefined topology

2012-07-11 Thread Richard Lowe
earest replica is. -Original Message- From: prasenjit mukherjee [mailto:prasen@gmail.com] Sent: 11 July 2012 06:33 To: user Subject: How to come up with a predefined topology Quoting from http://www.datastax.com/docs/0.8/cluster_architecture/replication#networktopologystrategy : "Asy