Apache TinkerPopAT
Apache TinkerPop•3y ago
Dinh Phu

The query gets slower as the number of vertices that already exist in JanusGraph gets bigger and big

When i start JanusGraph and perform any query like :
  • g.V().has(properties).limit(10).toList()
  • g.V(vertex).repeat(outE()).until(outE().count().is(0)) ( it will traverse about 3-4 vertices)
  • g.V().has(properties).next
  • g.addV()....... ( 1 vertex)
  • g.addE()....... ( 1 edge)
Data model:
  • vertexC: is leaf vertex
  • vertexB: associated with a lot of vertexA and their father
  • vertexA: father of about 500 vertexB
Initially these queries are very fast. But then when I run for a period of time, the queries get slower and slower and start to timeout (still have fast queries interspersed with slow queries). And I see that the number of requests across regions of Hbase is not balanced, it focuses on a few regions and the remaining regions have a very small number of requests and are almost equal.
Can anyone help me with this situation?
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