java - Concurrent write to titan DB to improve performance -


what way concurrent write titan db cassandra does. using titan cassandra data storage. overall want write database parallely can improve performance.

i tried java multithread getting lock exception.

this question asked in aurelius graphs mailing list:

https://groups.google.com/d/msg/aureliusgraphs/lbox0wkhulc/j2wqubtrqtqj

other answers welcome here, of course, here summary of answer exchange:

you can use multithreading, multiple jvm processed, etc. write titan in parallel fashion. however, if titan schema uses locks enforce uniqueness, inevitably hit locking exceptions. there 2 ways deal this:

  1. remove locks , manage uniqueness consistency yourself: http://s3.thinkaurelius.com/docs/titan/0.5.4/eventual-consistency.html or
  2. keep locking enabled , add transaction retry code. may consider smaller commits keep locks open least amount of time possible preventing further lock contention.

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