Create separate Gremlin Java client objects for read and write endpoints - Amazon Neptune
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Create separate Gremlin Java client objects for read and write endpoints

You can increase performance by only performing writes on the writer endpoint and reading from one or more read-only endpoints.

Client readerClient = Cluster.build("https://reader-endpoint")
          ...
          .connect()

Client writerClient = Cluster.build("https://writer-endpoint")
          ...
          .connect()