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Posted to issues@tez.apache.org by "László Bodor (Jira)" <ji...@apache.org> on 2020/01/21 13:31:00 UTC

[jira] [Comment Edited] (TEZ-4101) Eliminate some guava dependencies by Java8+ features - Preconditions

    [ https://issues.apache.org/jira/browse/TEZ-4101?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020232#comment-17020232 ] 

László Bodor edited comment on TEZ-4101 at 1/21/20 1:30 PM:
------------------------------------------------------------

[~jeagles]: what do you think about this kind of separation of Preconditions? I feel the pain of handling guava versions in tez (+tez on hadoop), but at the same time I don't see the benefit of them...having multiple tez tickets which are blocked on guava (especially Preconditions), just because Precondition can throw a formatted exception if a boolean is evaluated to false...
maybe I can even "copy" the implementation instead of wrapping the calls to guava (it might be something similar what you did with Stopwatch in TEZ-3256)

without Preconditions, I see more chance to proceed with hadoop upgrades (e.g. TEZ-4100)


was (Author: abstractdog):
[~jeagles]: what do you think about this kind of separation of Preconditions? I feel the pain of handling guava versions in tez (+tez on hadoop), but at the same time I don't see the benefit of them...having multiple tez tickets which are blocked on guava (especially Preconditions), just because Precondition can throw a formatted exception if a boolean is evaluated to false...
maybe I can even "copy" the implementation instead of wrapping the calls to guava (it might be something similar what you did with Stopwatch in TEZ-3256)

> Eliminate some guava dependencies by Java8+ features - Preconditions
> --------------------------------------------------------------------
>
>                 Key: TEZ-4101
>                 URL: https://issues.apache.org/jira/browse/TEZ-4101
>             Project: Apache Tez
>          Issue Type: Improvement
>            Reporter: László Bodor
>            Assignee: László Bodor
>            Priority: Major
>         Attachments: TEZ-4101.01.patch, TEZ-4101.02.patch
>
>
> 1. Preconditions.checkNotNull -> Objects.requireNonNull
> 2. wrap others into a tez common class



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