Re: Is there any way to detect when a node is down so I can failover more effectively?
Thanks Johathan On Wed, Jun 2, 2010 at 11:17 PM, Jonathan Ellis jbel...@gmail.com wrote: you're overcomplicating things. just connect to *a* node, and if it happens to be down, try a different one. nodes being down should be a rare event, not a normal condition. no need to optimize for it so much. also see http://wiki.apache.org/cassandra/FAQ#node_clients_connect_to 2010/6/1 Patricio Echagüe patric...@gmail.com: Hi all, I'm using Hector framework to interact with Cassandra and at trying to handle failover more effectively I found it a bit complicated to fetch all cassandra nodes that are up and running. My goal is to keep an up-to-date list of active/up Cassandra servers to provide HEctor every time I need to execute against the db. I've seen this Thrift method: get_string_property(token map) but it returns the nodes in the ring no matter is the node is down. Any advice? -- Patricio.- -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com -- Patricio.-
Re: Is there any way to detect when a node is down so I can failover more effectively?
you're overcomplicating things. just connect to *a* node, and if it happens to be down, try a different one. nodes being down should be a rare event, not a normal condition. no need to optimize for it so much. also see http://wiki.apache.org/cassandra/FAQ#node_clients_connect_to 2010/6/1 Patricio Echagüe patric...@gmail.com: Hi all, I'm using Hector framework to interact with Cassandra and at trying to handle failover more effectively I found it a bit complicated to fetch all cassandra nodes that are up and running. My goal is to keep an up-to-date list of active/up Cassandra servers to provide HEctor every time I need to execute against the db. I've seen this Thrift method: get_string_property(token map) but it returns the nodes in the ring no matter is the node is down. Any advice? -- Patricio.- -- Jonathan Ellis Project Chair, Apache Cassandra co-founder of Riptano, the source for professional Cassandra support http://riptano.com
Is there any way to detect when a node is down so I can failover more effectively?
Hi all, I'm using Hector framework to interact with Cassandra and at trying to handle failover more effectively I found it a bit complicated to fetch all cassandra nodes that are up and running. My goal is to keep an up-to-date list of active/up Cassandra servers to provide HEctor every time I need to execute against the db. I've seen this Thrift method: get_string_property(token map) but it returns the nodes in the ring no matter is the node is down. Any advice? -- Patricio.-
