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From "Varun Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6074) FlowRunEntity does not deserialize long values in efficient way.
Date Mon, 09 Jan 2017 09:31:58 GMT

    [ https://issues.apache.org/jira/browse/YARN-6074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15811173#comment-15811173
] 

Varun Saxena commented on YARN-6074:
------------------------------------

Ok...Will commit soon.

> FlowRunEntity does not deserialize long values in efficient way. 
> -----------------------------------------------------------------
>
>                 Key: YARN-6074
>                 URL: https://issues.apache.org/jira/browse/YARN-6074
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: timelinereader
>            Reporter: Rohith Sharma K S
>            Assignee: Rohith Sharma K S
>         Attachments: YARN-6074.patch
>
>
> I see that FlowRunEntity methods *getRunId()* and *getMaxEndTime()* does not deserialize
in efficient way which causes class cast exception based on the number.
> {code}
>   public long getRunId() {
>     Object runId = getInfo().get(FLOW_RUN_ID_INFO_KEY);
>     return runId == null ? 0L : (Long) runId;
>   }
> {code} 
> and 
> {code}
>   public long getMaxEndTime() {
>     Object time = getInfo().get(FLOW_RUN_END_TIME);
>     return time == null ? 0L : (Long)time;
>   }
> {code} 
> The reason for class caste exception is Json has data type Number which includes all
java primitive types. So, if number with in the range of Integer max, then Object is converted
to Integer which fails  to type cast to Long. 



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