Hi, I think the only "save" way is to fetch a key out of a bucket. Otherwise a fresh reinstalled node with a fresh installed riak without any data would accept _writes_ to it even before it is in the cluster.
So I would always do the "fetch key" check. (The backend has to be up as well for that, hasn't it? ;)) Cheers Simon On Sun, Feb 02, 2014 at 10:21:17AM -0800, Konstantin Kalin wrote: > Sounds interesting. Does the ping covers a case when Riak is half alive? Does > it check status of a backend engine? > We had a case due to a bug that bitcask was down but Riak was up. > > Thank you, > Konstantin. > > On Feb 2, 2014, at 10:16 AM, Brian Roach <[email protected]> wrote: > > > Konstantin, > > > > Doing a HTTP Ping request[1] to Riak is one approach. You could also > > do a HTTP Fetch[2] for a specific bucket/key pair. > > > > Another thing worth noting is that the all-new v2.0 of the Java client > > we'll be releasing for Riak 2.0 is much, much better in terms of load > > balancing and node management. It's built from the ground up to work > > with a cluster vs. the old client which just sort of had it tacked on. > > > > Operationally, for example, you'll be able to just push a properties > > file out that your application can monitor and reconfigure the running > > client. > > [1] http://docs.basho.com/riak/latest/dev/references/http/ping/ > > [2] http://docs.basho.com/riak/latest/dev/references/http/fetch-object/ > > > > Thanks, > > - Roach > > > > On Sun, Feb 2, 2014 at 10:23 AM, Konstantin Kalin > > <[email protected]> wrote: > >> Sorry jumping into the discussion. What is a best way to monitor Riak node > >> health? Most loadbalancer uses HTTP request to check if a node is alive. > >> > >> Currently we use Riak Java client to load balance requests to Riak. The > >> issue is if a node gets removed or added all Java servers need to update > >> configuration to reflect the changes. It's kinda annoying for operation > >> team. So we started thinking about putting LB between Riak cluster and Java > >> clients. > >> > >> Thank you, > >> Konstantin. > > > _______________________________________________ > riak-users mailing list > [email protected] > http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com _______________________________________________ riak-users mailing list [email protected] http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
