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I have configured 3 Cassandra database nodes in docker with port mapping 9043:9042, 9044:9042, and 9045:9042. I can work with a single node . How to pass other nodes in contact points.
Cluster.Builder()
.WithSessionName("Cassandra")
.AddContactPoints("127.0.0.1")
.WithPort(9043)
@punam.kumari_185226, you could pass in multiple hosts via a String[] to Cluster.Builder().AddContactPoints(String[]). Refer to API documentation & driver documentation for additional details on the same.
What should be in the string[]? I am getting unresolved host error when I am doing like this
AddContactPoints(new string[] {"127.0.0.1:9043", "127.0.0.1:9044"})
@punam.kumari_185226, for your use case, you could try something like below,
System.Net.IPAddress ipAddress = System.Net.IPAddress.Parse("127.0.0.1");IPEndPoint endPoint1 = new IPEndPoint(ipAddress, 9043);IPEndPoint endPoint2 = new IPEndPoint(ipAddress, 9044); IPEndPoint endPoint3 = new IPEndPoint(ipAddress, 9045);Cluster.Builder().AddContactPoints(new IPEndPoint[]{endPoint1, endPoint2, endPoint3}).Build()
Disclaimer: I am not a C# developer so, I have made my best attempt above.
The answer posted by @smadhavan is correct, if you pass IPEndPoint objects to the Builder.AddContactPoints() method, the driver will use the correct ports.
However, Apache Cassandra has only recently (version 4, still in alpha at this time) introduced a feature where the server ports are exposed to the client. AFAIK, in this scenario with the current server version (3.11.x) the driver will only connect to the node that is used as the contact point.
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