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https://issues.apache.org/jira/browse/TEZ-699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14046498#comment-14046498
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Hitesh Shah commented on TEZ-699:
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Just from a conversative/safety point of view instead of trying to second-guess
a user or try and fix erroneous configs. If a user sets either -Xms or -Xmx,
the framework does nothing.
> Have sensible defaults for java opts
> ------------------------------------
>
> Key: TEZ-699
> URL: https://issues.apache.org/jira/browse/TEZ-699
> Project: Apache Tez
> Issue Type: Sub-task
> Reporter: Bikas Saha
> Assignee: Hitesh Shah
> Attachments: TEZ-699.1.patch, TEZ-699.2.patch
>
>
> Its a burden to have to specify them all the time. API's already exist if
> users want to set special values. Also, for vertex memory would be good to
> have a TezUtils.getDefaultVertexResource() with a sensible resource size.
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