[
https://issues.apache.org/jira/browse/HAMA-431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13119434#comment-13119434
]
Thomas Jungblut commented on HAMA-431:
--------------------------------------
{quote}
Don't import or copy over the ContainerLauncher. All you need is the code in
there to start and stop containers.
{quote}
Oh okay. I'll remove them later. Can you provide a tiny code example what is
needed to launch a container and how it should look like in our cases?
{quote}
Regarding the state machines, we will need some kind of representation for the
barrier sync in the job too.
{quote}
I would not track this via the state machine. But it can be possible if we can
integrate the sync daemon into the application master.
So the application master will take care of the sync. Aren't the RPC services
blocking each other then? I tested an integration with our Groom and BSPMaster,
and it totally failed, so I had to put this into another process.
{quote}
Seems like Sync daemon can be started by the ApplicationMaster itself.
{quote}
Yes, there is still the question how to get the host:port of this daemon after
it has been launched. Is there a kind of communication between the starter and
the container?
{quote}
Still not sure about the checkpointer.
{quote}
Me neither, so we can leave this point open and revise the checkpointing
mechanism later. I don't want to be inconsistent to the current features, but I
think each task has to make its own checkpointing.
{quote}
I'll be hanging around at #hama channel at freenode, we can sync up w.r.t
implementation details. (My timezone is IST)
{quote}
I was a few days off so I wasn't there, you probably noticed, I'm sorry.
> MapReduce NG integration
> ------------------------
>
> Key: HAMA-431
> URL: https://issues.apache.org/jira/browse/HAMA-431
> Project: Hama
> Issue Type: New Feature
> Reporter: Thomas Jungblut
> Assignee: Thomas Jungblut
> Attachments: job_state.dot, task_phase.dot, task_state.dot
>
>
> We should take a look at how to integrate Hama's BSP Engine to Hadoop's
> nextGen application platform.
> Can be currently found in the 0.23 branch.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
