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https://issues.apache.org/jira/browse/TEZ-1740?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14196960#comment-14196960
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Bikas Saha commented on TEZ-1740:
---------------------------------
For cases like Hive, where DAGs tend to have a V shape in resource
requirements, pipelining can be beneficial for throughput/latency by having
subsequent DAGs fill out the space left behind as the current DAG draws to a
close.
> Support multiple DAGs in a Tez AM
> ---------------------------------
>
> Key: TEZ-1740
> URL: https://issues.apache.org/jira/browse/TEZ-1740
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Bikas Saha
>
> Currently, the TEZ AM supports only 1 DAG submission and execution at a time.
> It could be enhanced to support accepting more DAGs and/or running them
> concurrently. Definition of concurrently needs to be defined - fair-share or
> FIFO or pipelined or something else.
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