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https://issues.apache.org/jira/browse/YARN-5028?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16358801#comment-16358801
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Yufei Gu commented on YARN-5028:
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Hi [~grepas], thanks for working on this. Could you elaborate on the decision
on why these fields are kept and not others?
{code}
// most fields in the ApplicationSubmissionContex are not needed,
// but the following few need to be present for recovery to succeed
context.setApplicationId(srcCtx.getApplicationId());
context.setResource(srcCtx.getResource());
context.setQueue(srcCtx.getQueue());
context.setAMContainerResourceRequests(
srcCtx.getAMContainerResourceRequests());
context.setApplicationType(srcCtx.getApplicationType());
if (srcCtx.getAMContainerSpec() != null) {
context.setAMContainerSpec(new ContainerLaunchContextPBImpl());
}
{code}
> RMStateStore should trim down app state for completed applications
> ------------------------------------------------------------------
>
> Key: YARN-5028
> URL: https://issues.apache.org/jira/browse/YARN-5028
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Affects Versions: 2.8.0
> Reporter: Karthik Kambatla
> Assignee: Gergo Repas
> Priority: Major
> Attachments: YARN-5028.000.patch, YARN-5028.001.patch,
> YARN-5028.002.patch
>
>
> RMStateStore stores enough information to recover applications in case of a
> restart. The store also retains this information for completed applications
> to serve their status to REST, WebUI, Java and CLI clients. We don't need all
> the information we store today to serve application status; for instance, we
> don't need the {{ApplicationSubmissionContext}}.
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