On 9/9/2016 4:38 PM, Brent wrote:
> Is there a way to tell whether or not a node at a specific address is
> up using a SolrJ API?
Based on your other questions, I think you're running cloud. If that
assumption is correct, use the Collections API with HttpSolrClient
(instead of CloudSolrClient) to get a list of collections. Using
HttpSolrClient will direct the request to that specific server.
If it doesn't throw an exception, it's up. Here's some SolrJ code.
You're going to need some exception handling that's not included here:
RequestConfig rc =
RequestConfig.custom().setConnectTimeout(5000).setSocketTimeout(5000)
.build();
HttpClient hc =
HttpClients.custom().setDefaultRequestConfig(rc).disableAutomaticRetries().build();
SolrClient client = new
HttpSolrClient("http://server:8983/solr";, hc);
CollectionAdminRequest.List req = new CollectionAdminRequest.List();
CollectionAdminResponse response = req.process(client);
I am setting the timeouts for HttpClient to five seconds so that the
request will time out relatively quick in the case where the server
isn't up, or where it's up but not functioning correctly.
Thanks,
Shawn
