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From "Avery Ching (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-57) Add new RPC call (putVertexIdMessagesList) to batch putMsgList RPCs together
Date Fri, 16 Dec 2011 09:30:31 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-57?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13170857#comment-13170857
] 

Avery Ching commented on GIRAPH-57:
-----------------------------------

Emergency fix to allow trunk to compile on certain platforms:

[ERROR] /home/hudson/hudson-slave/workspace/Giraph-trunk-Commit/trunk/src/main/java/org/apache/giraph/comm/VertexIdMessages.java:[66,45]
type parameters of <I>I cannot be determined; no unique maximal instance exists for
type variable I with upper bounds I,org.apache.hadoop.io.WritableComparable

==============================================================================
--- incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/VertexIdMessages.java (original)
+++ incubator/giraph/trunk/src/main/java/org/apache/giraph/comm/VertexIdMessages.java Fri
Dec 16 09:26:44 2011
@@ -63,7 +63,7 @@ public class VertexIdMessages<I extends 
 
     @Override
     public void readFields(DataInput input) throws IOException {
-        vertexId = BspUtils.createVertexIndex(getConf());
+        vertexId = BspUtils.<I>createVertexIndex(getConf());
                
> Add new RPC call (putVertexIdMessagesList) to batch putMsgList RPCs together
> ----------------------------------------------------------------------------
>
>                 Key: GIRAPH-57
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-57
>             Project: Giraph
>          Issue Type: Improvement
>            Reporter: Jakob Homan
>            Assignee: Avery Ching
>         Attachments: GIRAPH-57.diff, GIRAPH-57.diff.2
>
>
> Right now messages are sent to a vertex one at a time.  It would be good to have a putMsgs
call that could send messages to multiple vertices (all hosted on the same worker).  We'd
save a huge number of individual RPC calls at the expense of having smaller calls with larger
payloads.

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