None via thrift that I can recall, but the StorageService MBean exposes
getLiveNodes() this is what nodetool uses to see which nodes are live.
From the code...
/**
* Retrieve the list of live nodes in the cluster, where "liveness" is
* determined by the failure detector of the node being queried.
*
* @return set of IP addresses, as Strings
*/
public List<String> getLiveNodes();
Hope that helps.
-----------------
Aaron Morton
Freelance Cassandra Developer
@aaronmorton
http://www.thelastpickle.com
On 9 Jun 2011, at 17:56, Suan Aik Yeo wrote:
> Is there a way (preferably an exposed method accessible through Thrift), from
> a running Cassandra node to determine whether or not itself is "up"? (Per
> Cassandra standards, I'm assuming based on the gossip protocol). Another way
> to think of what I'm looking for is basically running "nodetool ring" just on
> myself, but I'm only interested in knowing whether I'm "Up" or "Down"?
>
> I'm currently using the "describe_cluster" method, but earlier today when the
> commitlogs for a node filled up and it appeared down to the other nodes,
> describe_cluster() still worked fine, thus failing the check.
>
> Thanks,
> Suan
