[ https://issues.apache.org/jira/browse/YARN-10087?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Szilard Nemeth updated YARN-10087: ---------------------------------- Labels: newbie (was: ) > ATS possible NPE on REST API when data is missing > ------------------------------------------------- > > Key: YARN-10087 > URL: https://issues.apache.org/jira/browse/YARN-10087 > Project: Hadoop YARN > Issue Type: Bug > Components: ATSv2 > Reporter: Wilfred Spiegelenburg > Priority: Major > Labels: newbie > Attachments: ats_stack.txt > > > If the data stored by the ATS is not complete REST calls to the ATS can > return a NPE instead of results. > {{{"exception":"NullPointerException","javaClassName":"java.lang.NullPointerException"}}} > The issue shows up when the ATS was down for a short period and in that time > new applications were started. This causes certain parts of the application > data to be missing in the ATS store. In most cases this is not a problem and > data will be returned but when you start filtering data the filtering fails > throwing the NPE. > In this case the request was for: > {{http://<ATS-IP>:8188/ws/v1/applicationhistory/apps?user=hive'}} > If certain pieces of data are missing the ATS should not even consider > returning that data, filtered or not. We should not display partial or > incomplete data. > In case of the missing user information ACL checks cannot be correctly > performed and we could see more issues. > A similar issue was fixed in YARN-7118 where the queue details were missing. > It just _skips_ the app to prevent the NPE but that is not the correct thing > when the user is missing -- This message was sent by Atlassian Jira (v8.3.4#803005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org