Roman Leventov created YARN-10064: ------------------------------------- Summary: Potential race conditions in AuxServices Key: YARN-10064 URL: https://issues.apache.org/jira/browse/YARN-10064 Project: Hadoop YARN Issue Type: Bug Reporter: Roman Leventov
There are three places in {{AuxServices}} class that may potentially cause race conditions: {{getServices()}}, {{getServiceRecords()}}, {{handle(AuxServicesEvent event)}}. In the first two methods, synchronized collections are returned from the API. If they are iterated concurrently with the underlying collections being updated inside {{AuxServices}}, non-deterministic behavior may follow. In {{handle(AuxServicesEvent event)}}, {{serviceMap.values()}} is actually iterated outside of a critical section on {{serviceMap}} object, though it's unclear from the class itself whether handle() may be called concurrently with the methods on {{AuxServices}} that modify {{serviceMap}} or not. So if this not a bug, adding a comment explaining this would be helpful. -- 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