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https://issues.apache.org/jira/browse/TEZ-2159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14481143#comment-14481143
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Sreenath Somarajapuram commented on TEZ-2159:
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Even if there is no batching the data can be inconsistent between vertex/task.
- What about between tasks. Assuming a running DAG with thousands of tasks,
wouldn't each batch have data from a different time frame. Wouldn't comparing
them (for instance task counters) give erroneous results?
May be we can convey the same as a confirm dialog message.
>From the perspective of main use case, the patch LGTM. It was tested with
>Ambari views, and works as expected.
> Tez UI: download timeline data for offline use.
> -----------------------------------------------
>
> Key: TEZ-2159
> URL: https://issues.apache.org/jira/browse/TEZ-2159
> Project: Apache Tez
> Issue Type: Improvement
> Components: UI
> Reporter: Prakash Ramachandran
> Assignee: Prakash Ramachandran
> Attachments: TEZ-2159.1.patch, TEZ-2159.2.patch, TEZ-2159.wip.1.patch
>
>
> It is useful to have capability to download the timeline data for a dag for
> offline analysis. for ex. TEZ-2076 uses the timeline data to do offline
> analysis of a tez application run.
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