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https://issues.apache.org/jira/browse/HAMA-758?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13661495#comment-13661495
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MaoYuan Xian commented on HAMA-758:
-----------------------------------
When send message to non-exist vertex, I can see exception with "Messages must
never be behind the vertex in ID!". Attached the patch file, ignores the
useless messages.
> Send message to non-exist vertex makes the job fail.
> ----------------------------------------------------
>
> Key: HAMA-758
> URL: https://issues.apache.org/jira/browse/HAMA-758
> Project: Hama
> Issue Type: Wish
> Components: graph
> Affects Versions: 0.6.1
> Reporter: MaoYuan Xian
> Priority: Minor
> Attachments: HAMA-758.patch
>
>
> In graph computing, when sends message to non-exist vertex, job will fail.
> The problem triggered from iterate method of
> org.apache.hama.graph.GraphJobCounter.
> Un-completed graph input exists in the real world. Should we ignore these
> messages sent to non-exist vertext? Or, should we add the mechanism, adds the
> additional vertex when Vertex.addEdge called?
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