Marko A. Rodriguez created TINKERPOP3-631:
---------------------------------------------
Summary: If there is a reducing barrier in OLAP, let the next
stages
Key: TINKERPOP3-631
URL: https://issues.apache.org/jira/browse/TINKERPOP3-631
Project: TinkerPop 3
Issue Type: Improvement
Components: process
Reporter: Marko A. Rodriguez
Assignee: Marko A. Rodriguez
Right now, mid-traversal barriers are not allowed.
{code}
gremlin>
g.E().has(label,'rated').groupCount().by('stars').order(local).by(valueDecr)
Global traversals on GraphComputer may not contain mid-traversal barriers:
GroupCountStep(value(stars))
Display stack trace? [yN]
{code}
This is because the barrier will aggregate to a single value and what machine
is that value suppose to then be on? How about the driver machine? Thus,
perhaps once a barrier is hit, the remaining steps are executed OLTP? .... its
easy to do, but the problem is that it may confuse people as to the level of
parallelism.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
