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https://issues.apache.org/jira/browse/YARN-5093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15290080#comment-15290080
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Vrushali C commented on YARN-5093:
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Alright, I chatted with Sangjin offline.
I think we can put in a specific check for created time in the
HBaseTimelineWriterImpl#storeInfo function to write it out only if it is set.
I suggest defining a constant value such a final static long NO_VALUE_SET which
is set to -1 (or some such value which makes it clear that it's not set yet).
The TimelineEntity constructor can then initialize the created time member to
NO_VALUE_SET. That way, in the writer code, we can check if the value of
created time is equal to NO_VALUE_SET or not. If not, we can write it out.
Let me know if you want to offload this jira.
> 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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