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https://issues.apache.org/jira/browse/YARN-5093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289720#comment-15289720
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Vrushali C commented on YARN-5093:
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Related jira for "correctly set createdTime and remove modifiedTime when
publishing entities" : https://issues.apache.org/jira/browse/YARN-4238
The patch in the jira above should have been populating the created time at
entity creation. Did this get "lost" in the merge? IIRC, entity creation time
has to be populated when the entity is created. Is it getting overwritten to
become null?
The writer cannot distinguish between a real 0 and non-existing value. If at
all that is to be done at the writer side, then we need to initialize numeric
members with something like "NON_EXISTENT_VALUE" constant which could be set to
-1 or something.
> created time shows 0 in most REST output
> ----------------------------------------
>
> Key: YARN-5093
> URL: https://issues.apache.org/jira/browse/YARN-5093
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelineserver
> Affects Versions: YARN-2928
> Reporter: Sangjin Lee
> Assignee: Varun Saxena
> Priority: Critical
> Labels: yarn-2928-1st-milestone
>
> When querying the REST API, I find that the created time value is returned as
> "0" for most of the output. It includes:
> - flow activity and flow runs in the flow activity page
> - apps in the application page
> - entities in the entity page
> For example, in the flow activity page,
> {noformat}
> {
> metrics: [ ],
> events: [ ],
> id: "yarn_cluster/1463356800000/sjlee@ds-date",
> type: "YARN_FLOW_ACTIVITY",
> createdtime: 0,
> flowruns: [
> {
> metrics: [ ],
> events: [ ],
> id: "sjlee@ds-date/1463435661428",
> type: "YARN_FLOW_RUN",
> createdtime: 0,
> info: {
> SYSTEM_INFO_FLOW_VERSION: "1",
> SYSTEM_INFO_FLOW_RUN_ID: 1463435661428,
> SYSTEM_INFO_FLOW_NAME: "ds-date",
> SYSTEM_INFO_USER: "sjlee"
> },
> isrelatedto: { },
> relatesto: { }
> }
> ],
> info: {
> SYSTEM_INFO_CLUSTER: "yarn_cluster",
> UID: "yarn_cluster!sjlee!ds-date",
> SYSTEM_INFO_FLOW_NAME: "ds-date",
> SYSTEM_INFO_DATE: 1463356800000,
> SYSTEM_INFO_USER: "sjlee"
> },
> isrelatedto: { },
> relatesto: { }
> }
> {noformat}
> The only page that appears to show the proper created time value is the flow
> run page.
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