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https://issues.apache.org/jira/browse/YARN-6074?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15811464#comment-15811464
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Varun Saxena commented on YARN-6074:
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Committed to trunk, YARN-5355 and YARN-5355-branch-2.
Thanks [~rohithsharma] for your contribution
> FlowRunEntity does not deserialize long values correctly
> --------------------------------------------------------
>
> 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
> Fix For: 3.0.0-alpha2, YARN-5355, YARN-5355-branch-2
>
> 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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