[
https://issues.apache.org/jira/browse/GIRAPH-732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733492#comment-13733492
]
Nitay Joffe commented on GIRAPH-732:
------------------------------------
Yes both (1) and (2) are possible.
(1) should be easy enough by just putting VertexOutputFormat logic before
EdgeOutputFormat.
For (2) you can use some ZK nodes to synchronize across all the workers. You
will probably have to call the committer methods yourself. Take a look at how
we do per-superstep output for help.
For your use case, to print the outgoing edges for a given vertex X, do you
just need X's data to have been written, or do you need all vertices data to
have already been written? If it's the former than you can do what you want
with existing code, for the latter you will definitely need this new API we're
talking about.
> EdgeOutputFormat
> ----------------
>
> Key: GIRAPH-732
> URL: https://issues.apache.org/jira/browse/GIRAPH-732
> Project: Giraph
> Issue Type: Bug
> Reporter: Nitay Joffe
>
> Outputting edges is as easy as looping through edges in a vertex and writing
> them out. However right now the user still needs to write a
> VertexOutputFormat and do it themselves.
> We should make this easier for them by adding an EdgeOutputFormat API and
> allowing the user to specify a VertexOutputFormat and/or an EdgeOutputFormat.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
