Retrieve Couchbase version from .NET client

.NET SDK
1

Given an instance of IBucket, I’m wondering if there is any way to retrieve the version of Couchbase that is running in the cluster. There is a Cluster object in the bucket instance, of course, but I could not find any values representing anything like “6.6.2” or “7.0.2”.
We are needing to identify the server version for use in a conditional statement. I.e.
if (version == "7.0.2") { //do something special }

2

@malclear

There is a way, I just don’t think it’s documented. But we use it to support some external libraries like Linq2Couchbase.

var versionProvider = cluster.ClusterServices.GetRequiredService<IClusterVersionProvider>();
var clusterVersion = await versionProvider.GetVersionAsync();

More info here: couchbase-net-client/src/Couchbase/Core/Version/IClusterVersionProvider.cs at master · couchbase/couchbase-net-client · GitHub

Some notes:

  • It will return null if it is unable to acquire the version for any reason, but errors will be logged.
  • The result is cached for the lifetime of the cluster or until ClearCache is called. So if you do a rolling upgrade of your cluster, your app will still think it’s on the old version until recycled or you call ClearCache.
  • If your cluster is in a mixed-version mode during an upgrade, the lowest version is returned.
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