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From "Billie Rinaldi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-5967) Fix slider core module findbugs warnings
Date Fri, 16 Dec 2016 21:25:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-5967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15755543#comment-15755543

Billie Rinaldi commented on YARN-5967:

[~jianhe], this is looking great so far. Here are some specific comments. I tried to point
out places where it would be easy to fix an error rather than ignoring the warning, but I
also don't think any of these are a real problem.
* There is a non-generated class in the proto package. Maybe we should move that to a different
* For SliderKeys COMPONENT_KEYS_TO_SKIP, we could make it a List and use Collections.unmodifiableList(Arrays.asList(…))
instead of ignoring MS_MUTABLE_ARRAY.
* StringBuffer in AbstractActionArgs could be StringBuilder.
* We should specify Charset.forName("UTF-8”) or StandardCharsets.UTF_8 instead of ignoring
DM_DEFAULT_ENCODING, where possible. FileReader can be switched to an InputStreamReader. PrintStream
has a constructor which takes a File and a charset name as a String. Not sure about PrintWriter.
* I am not sure we should ignore OS_OPEN_STREAM, but I did not look at the individual cases
of this error.
* In AppDefinitionPersister, let’s move File defPath = new File(value) after the if (SliderUtils.isUnset(value))
* Since OutstandingRequestTracker newerThan is Serializable now, does it need a serialVersionUID?
* For OutstandingRequest, would it be better to have a trivial equals method that calls super.equals
instead of ignoring EQ_DOESNT_OVERRIDE_EQUALS?
* In RoleInstance, we could make output private instead of ignoring UWF_UNWRITTEN_PUBLIC_OR_PROTECTED_FIELD.
* In Probe, could we make bootstrapStarted and bootstrapFinished private instead of ignoring
URF_UNREAD_PUBLIC_OR_PROTECTED_FIELD? I see there is a comment saying to leave them alone,
but maybe making them private isn’t what the comment meant.
* In PublisherResource, I think we could make getAMClassPath return a List<URL> rather
* The ContainerStatsBlock error still needs to be handled, correct?

> Fix slider core module findbugs warnings 
> -----------------------------------------
>                 Key: YARN-5967
>                 URL: https://issues.apache.org/jira/browse/YARN-5967
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-5967-yarn-native-services.01.patch, YARN-5967-yarn-native-services.02.patch,
YARN-5967-yarn-native-services.02.patch, YARN-5967-yarn-native-services.03.patch, YARN-5967-yarn-native-services.04.patch,
YARN-5967-yarn-native-services.04.patch, YARN-5967-yarn-native-services.05.patch, YARN-5967-yarn-native-services.06.patch

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