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https://issues.apache.org/jira/browse/GIRAPH-941?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Seong-il Lee updated GIRAPH-941:
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Description:
*Problem:*
When Giraph reads from Titan DB via Rexster, it uses api like below
/graphs/%s/tp/giraph/%s/rexster.offset.start=%s&rexster.offset.end=%s
- offset.start : index of start vertex
- offset.end : index of end vertex
Titan DB has 100 vertices and I want to read vertices 1 to 10.
So, I set
offset.start = 1
offset.end = 10
But, Rexster read whole vertices from Titan DB.
*Reason:*
giraph-rexster/giraph-kibble/src/main/java/org/apache/giraph/rexster/kibble/IteratorVertex.java
There was a vertex count variable, but it didn't work correctly. (it didn't
increase)
*Solution:*
Add code to increase vertex count
was:
Problem:
When Giraph reads from Titan DB via Rexster, it uses api like below
/graphs/%s/tp/giraph/%s/rexster.offset.start=%s&rexster.offset.end=%s
- offset.start : index of start vertex
- offset.end : index of end vertex
Titan DB has 100 vertices and I want to read vertices 1 to 10.
So, I set
offset.start = 1
offset.end = 10
But, Rexster read whole vertices from Titan DB.
Reason:
giraph-rexster/giraph-kibble/src/main/java/org/apache/giraph/rexster/kibble/IteratorVertex.java
There was a vertex count variable, but it didn't work correctly. (it didn't
increase)
Solution:
Add code to increase vertex count
> Rexster vertices read bug
> -------------------------
>
> Key: GIRAPH-941
> URL: https://issues.apache.org/jira/browse/GIRAPH-941
> Project: Giraph
> Issue Type: Bug
> Environment: - Ubuntu 12.04
> - Hadoop 1.2.1
> - Giraph trunk
> - Titan 0.4.4
> Reporter: Seong-il Lee
> Priority: Minor
> Attachments: GIRAPH-941.patch
>
>
> *Problem:*
> When Giraph reads from Titan DB via Rexster, it uses api like below
> /graphs/%s/tp/giraph/%s/rexster.offset.start=%s&rexster.offset.end=%s
> - offset.start : index of start vertex
> - offset.end : index of end vertex
> Titan DB has 100 vertices and I want to read vertices 1 to 10.
> So, I set
> offset.start = 1
> offset.end = 10
> But, Rexster read whole vertices from Titan DB.
> *Reason:*
> giraph-rexster/giraph-kibble/src/main/java/org/apache/giraph/rexster/kibble/IteratorVertex.java
> There was a vertex count variable, but it didn't work correctly. (it didn't
> increase)
> *Solution:*
> Add code to increase vertex count
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