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Posted to dev@hama.apache.org by "Edward J. Yoon (Commented) (JIRA)" <ji...@apache.org> on 2011/11/28 08:46:44 UTC
[jira] [Commented] (HAMA-479) Add Counters to Hama Jobs
[ 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
{code}
...
peer.incrCounter(MSG_EXCHANGE, String.valueOf(peer.getSuperstepCount()), updatesMade);
....
peer.sync();
// exit from loop
if (peer.getCounter(MSG_EXCHANGE,
String.valueOf(peer.getSuperstepCount() - 1)).getCounter() == 0) {
break;
}
{code}
> 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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