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https://issues.apache.org/jira/browse/TEZ-2003?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14693962#comment-14693962
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TezQA commented on TEZ-2003:
----------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12750134/2003_20150812.1.txt
against master revision c0aec00.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output: https://builds.apache.org/job/PreCommit-TEZ-Build/980//console
This message is automatically generated.
> [Umbrella] Allow Tez to co-ordinate execution to external services
> ------------------------------------------------------------------
>
> Key: TEZ-2003
> URL: https://issues.apache.org/jira/browse/TEZ-2003
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Siddharth Seth
> Attachments: 2003_20150728.1.txt, 2003_20150807.1.txt,
> 2003_20150807.2.txt, 2003_20150812.1.txt, Tez With External Services.pdf
>
>
> The Tez engine itself takes care of co-ordinating execution - controlling how
> data gets routed (different connection patterns), fault tolerance, scheduling
> of work, etc.
> This is currently tied to TaskSpecs defined within Tez and on containers
> launched by Tez itself (TezChild).
> The proposal is to allow Tez to work with external services instead of just
> containers launched by Tez. This involves several more pluggable layers to
> work with alternate Task Specifications, custom launch and task allocation
> mechanics, as well as custom scheduling sources.
> A simple example would be a simple a process with the capability to execute
> multiple Tez TaskSpecs as threads. In such a case, a container launch isn't
> really need and can be mocked. Sourcing / scheduling containers would need to
> be pluggable.
> A more advanced example would be LLAP (HIVE-7926;
> https://issues.apache.org/jira/secure/attachment/12665704/LLAPdesigndocument.pdf).
> This works with custom interfaces - which would need to be supported by Tez,
> along with a custom event model which would need translation hooks.
> Tez should be able to work with a combination of certain vertices running in
> external services and others running in regular Tez containers.
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