[jira] [Commented] (TEZ-1663) Change diagnostics to a more parseable format for easy consumption by UI

["Bikas Saha (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/TEZ-1663?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14170380#comment-14170380 ] 

Bikas Saha commented on TEZ-1663:
---------------------------------

What we probably need is a clear ENUM of errors that can happen. The ENUM will allow programmatic handling/analysis of the errors. The code can react to an error in a particular way. Or the UI/debugging tools can analyze and present errors in different ways. The string formatting can be fragile since that can come from anywhere - e.g. string from NM saying why it failed to launch the container. Effectively, when the AM notifies a certain error - say launch_error in this case, it can associate that error enum along with its arbitrary string diagnostic.

> Change diagnostics to a more parseable format for easy consumption by UI
> ------------------------------------------------------------------------
>
>                 Key: TEZ-1663
>                 URL: https://issues.apache.org/jira/browse/TEZ-1663
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Hitesh Shah
>
> A better format for diagnostics will allow the UI to parse it more easily and also provide information back to user in a better manner. 



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