Do edge and vertex with the same partition key but different clustering keys reside on different nodes?

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baid_manish_187433 asked Jun 8, '20 bettina.swynnerton edited Jun 9, '20

Do edge and vertex with the same partition key but different clustering keys reside on different nodes?

DSE 6.8: Edge is created with partition keys from "OUT" vertex's primary key (contains few clustering keys), this implies edge and vertex are going reside on separate nodes?

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Answer 1 · 2020-06-08T07:11:47Z

bettina.swynnerton answered Jun 8, '20 bettina.swynnerton edited Jun 9, '20

Hi,

Both the vertex and the edge coming out of the vertex have the same partition key, so this implies that the edge and the vertex reside on the same node. The node is determined by the consistent hashing algorithm from the partition key. The clustering keys do not come into this.

You can test for endpoints with nodetool getendpoints: https://docs.datastax.com/en/dse/6.8/dse-admin/datastax_enterprise/tools/nodetool/toolsGetEndPoints.html

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