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https://issues.apache.org/jira/browse/HADOOP-5303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12676292#action_12676292
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Steve Loughran commented on HADOOP-5303:
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On the topic of Ant, GridAnt does what Tom is thinking of, you could play with
that today
http://www.globus.org/cog/projects/gridant/
Also, I'd expect to see Ant tasks to do the long haul submissions, to push out
workflows with late binding information (username, S3 login details) sent as
part of the process, but not hard coded into the XML
> Hadoop Workflow System (HWS)
> ----------------------------
>
> Key: HADOOP-5303
> URL: https://issues.apache.org/jira/browse/HADOOP-5303
> Project: Hadoop Core
> Issue Type: New Feature
> Reporter: Alejandro Abdelnur
> Assignee: Alejandro Abdelnur
> Attachments: hws-preso-v1_0_2009FEB22.pdf, hws-v1_0_2009FEB22.pdf
>
>
> This is a proposal for a system specialized in running Hadoop/Pig jobs in a
> control dependency DAG (Direct Acyclic Graph), a Hadoop workflow application.
> Attached there is a complete specification and a high level overview
> presentation.
> ----
> *Highlights*
> A Workflow application is DAG that coordinates the following types of
> actions: Hadoop, Pig, Ssh, Http, Email and sub-workflows.
> Flow control operations within the workflow applications can be done using
> decision, fork and join nodes. Cycles in workflows are not supported.
> Actions and decisions can be parameterized with job properties, actions
> output (i.e. Hadoop counters, Ssh key/value pairs output) and file
> information (file exists, file size, etc). Formal parameters are expressed in
> the workflow definition as {{${VAR}}} variables.
> A Workflow application is a ZIP file that contains the workflow definition
> (an XML file), all the necessary files to run all the actions: JAR files for
> Map/Reduce jobs, shells for streaming Map/Reduce jobs, native libraries, Pig
> scripts, and other resource files.
> Before running a workflow job, the corresponding workflow application must be
> deployed in HWS.
> Deploying workflow application and running workflow jobs can be done via
> command line tools, a WS API and a Java API.
> Monitoring the system and workflow jobs can be done via a web console,
> command line tools, a WS API and a Java API.
> When submitting a workflow job, a set of properties resolving all the formal
> parameters in the workflow definitions must be provided. This set of
> properties is a Hadoop configuration.
> Possible states for a workflow jobs are: {{CREATED}}, {{RUNNING}},
> {{SUSPENDED}}, {{SUCCEEDED}}, {{KILLED}} and {{FAILED}}.
> In the case of a action failure in a workflow job, depending on the type of
> failure, HWS will attempt automatic retries, it will request a manual retry
> or it will fail the workflow job.
> HWS can make HTTP callback notifications on action start/end/failure events
> and workflow end/failure events.
> In the case of workflow job failure, the workflow job can be resubmitted
> skipping previously completed actions. Before doing a resubmission the
> workflow application could be updated with a patch to fix a problem in the
> workflow application code.
> ----
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