janusgraph a lot of time for a complete scan of graph conating 100K vertices

[hmdc...@gmail.com]

Hi all,

I have a Janusgraph with more than 100K vertices.

When I try to retrieve all the vertices through a java code using a gremlin query, it takes more than 10 mins to list all the vertices.

I am using hbase as backend source, and elastic search for searching.

Thanks,

Himanshu

[HadoopMarc]

Hi Himanshu,

g.V().count() requires a full table scan, so normally you would use an OLAP query for that. Unfortunately, OLAP queries with HBase also still have some performance issues, see:

https://groups.google.com/forum/#!searchin/janusgraph-users/olap$20hbase%7Csort:relevance/janusgraph-users/9e82gcUTB4M/q-rBRQmfAQAJ

You could also try a direct index query to the ES backend, no idea how that will perform for you:

http://docs.janusgraph.org/latest/direct-index-query.html

HTH,   Marc

Op vrijdag 8 september 2017 15:28:23 UTC+2 schreef Himanshu Mishra: