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https://issues.apache.org/jira/browse/TEZ-1273?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264915#comment-14264915
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Bikas Saha commented on TEZ-1273:
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bq. Is it expected that we don't shutdown AM in TezClient::stop when it is
non-session ?
Yes. Because its not a session. The app could be queued on YARN and can run
much later.
> Refactor DAGAppMaster to state machine based
> --------------------------------------------
>
> Key: TEZ-1273
> URL: https://issues.apache.org/jira/browse/TEZ-1273
> Project: Apache Tez
> Issue Type: Improvement
> Affects Versions: 0.4.0
> Reporter: Jeff Zhang
> Assignee: Jeff Zhang
> Attachments: DAGAppMaster_3.pdf, TEZ-1273-3.patch, TEZ-1273-4.patch,
> Tez-1273-2.patch, Tez-1273.patch, dag_app_master.pdf, dag_app_master2.pdf
>
>
> Almost all our entities (Vertex, Task etc) are state machine based and
> written using a formal state machine. But DAGAppMaster is not written on a
> formal state machine even though it has a state machine based behavior. This
> jira is for refactoring it into state machine based
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