Hello, Pavel -- There isn't a method cluster() in the IgniteClient java class. I came up with a different workaround: I retrieve the number of cached entries on the heap, and check that it's greater than -1 and no exception is thrown. That's not ideal, but should work, as long as ClientCache.size() never returns a negative number. Ideally I would use something like clientCacheObject.ping(), which would simply send a request to the node or cluster, and get back a response (or not).
-- Scott On Sat, Sep 12, 2020 at 9:33 AM Scott Prater <[email protected]> wrote: > Correct, something like a ping. But the state() method should serve the > purpose, too. Thanks! > > On Sat, Sep 12, 2020 at 2:30 AM Pavel Tupitsyn <[email protected]> > wrote: > >> Hello Scott, >> >> ClientCache.getName() is a local operation, it simply returns a cached >> string. >> >> IgniteClient.cluster().state() is a good way to check the connectivity - >> it sends a lightweight request to the server. >> >> As I understood, you are asking for something like IgniteClient.ping(), >> right? >> >> Thanks, >> Pavel >> >> On Sat, Sep 12, 2020 at 2:25 AM Scott Prater <[email protected]> wrote: >> >>> Hello, >>> >>> I'm a new Ignite user, and with just a little bit of exposure, I'm quite >>> impressed with it -- it did not take me long to get a single standalone >>> remote node up and running and start using it as a durable memory key-value >>> store. >>> >>> I created a connection pool for ClientCache in Java, using Apache >>> Commons Pool 2. So far it's working well, but I had to fudge overriding >>> the commons-pool2 "validateObject()" method, which is a method to test that >>> your pooled object is still alive and well: I used >>> clientCache.getName().equals("MY_CACHE") as a test, but I have no idea if >>> this indicates whether the connection to my remote cache is active or not. >>> >>> In some future release, could you add a "isConnected()" method or >>> similar to ClientCache or IgniteClient (if it makes more sense there), for >>> ease of testing connections and determining when to discard bad client >>> objects? >>> >>> thanks, >>> >>> -- Scott >>> >>> >>> >> >>
