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https://issues.apache.org/jira/browse/YARN-10310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17137965#comment-17137965
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Bilwa S T edited comment on YARN-10310 at 6/16/20, 10:47 PM:
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[~eyang] Thanks for explaination. Let me explain my testing steps. I have not
deleted file from hdfs in below steps
1. Launch an application with user *hdfs* using below command two times with
same app name
{code:java}
./yarn app -launch sleeper-service
../share/hadoop/yarn/yarn-service-examples/sleeper/sleeper.json -appTypes
unit-test
{code}
App launch fails with error saying "*Failed to create service sleeper-service,
because it already exists.*"
2. Whereas when i launch an app with *hdfs/had...@hadoop.com* two times with
same app name
App launch fails due to *DIr existing on hdfs.*
This behaviour is not same. Please do check once. Thanks
was (Author: bilwast):
[~eyang] Thanks for explaination. Let me explain my testing steps. I have not
deleted file from hdfs in below steps
1. Launch an application with user hdfs using below command two times with same
app name
{code:java}
./yarn app -launch sleeper-service
../share/hadoop/yarn/yarn-service-examples/sleeper/sleeper.json -appTypes
unit-test
{code}
App launch fails with error saying "Failed to create service sleeper-service,
because it already exists."
2. Whereas when i launch an app with hdfs/had...@hadoop.com two times with same
app name
App launch fails due to DIr existing on hdfs.
This behaviour is not same. Please do check once. Thanks
> YARN Service - User is able to launch a service with same name
> --------------------------------------------------------------
>
> Key: YARN-10310
> URL: https://issues.apache.org/jira/browse/YARN-10310
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Bilwa S T
> Assignee: Bilwa S T
> Priority: Major
> Attachments: YARN-10310.001.patch
>
>
> As ServiceClient uses UserGroupInformation.getCurrentUser().getUserName() to
> get user whereas ClientRMService#submitApplication uses
> UserGroupInformation.getCurrentUser().getShortUserName() to set application
> username.
> In case of user with name hdfs/had...@hadoop.com. below condition fails
> ClientRMService#getApplications()
> {code:java}
> if (users != null && !users.isEmpty() &&
> !users.contains(application.getUser())) {
> continue;
> }
> {code}
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