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From "Edward J. Yoon (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HAMA-479) Add Counters to Hama Jobs
Date Mon, 28 Nov 2011 07:46:44 GMT

    [ https://issues.apache.org/jira/browse/HAMA-479?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158267#comment-13158267

Edward J. Yoon commented on HAMA-479:

It'd be nice if the supersteps and basic I/O records are built-in counters of BSP framework.
Additionally, we should allows users to employ their own counters. 

In SSSP Example case, sync() calls can be reduced to 1/3 using counter, maybe as below


peer.incrCounter(MSG_EXCHANGE, String.valueOf(peer.getSuperstepCount()), updatesMade);


// exit from loop
if (peer.getCounter(MSG_EXCHANGE,
    String.valueOf(peer.getSuperstepCount() - 1)).getCounter() == 0) {
> Add Counters to Hama Jobs
> -------------------------
>                 Key: HAMA-479
>                 URL: https://issues.apache.org/jira/browse/HAMA-479
>             Project: Hama
>          Issue Type: New Feature
>            Reporter: Thomas Jungblut
>            Assignee: Edward J. Yoon
>              Labels: bsp
>             Fix For: 0.4.0
> We should add counters for each Hama job.
> We want to add message counters (bytes transfered, local messages sent, outward messages
sent, time in sync etc.), for the last superstep and summed up for all supersteps. 
> It should be as simple as the from Hadoop provided mechanism with enums.
> We could eventually use zookeeper instead of the jobreport.
> For the SSSP Example it should be useful that the last superstep counters are always
in sync in each task after a superstep. == After barrier left, query zookeeper for the values.

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