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Steve Loughran commented on HADOOP-18074: ----------------------------------------- ok. where does that method get called btw? client side, or server side only? > Partial/Incomplete groups list can be returned in LDAP groups lookup > -------------------------------------------------------------------- > > Key: HADOOP-18074 > URL: https://issues.apache.org/jira/browse/HADOOP-18074 > Project: Hadoop Common > Issue Type: Bug > Components: security > Reporter: Philippe Lanoe > Assignee: Larry McCay > Priority: Major > > Hello, > The > {code:java} > Set<String> doGetGroups(String user, int goUpHierarchy) {code} > method in > [https://github.com/apache/hadoop/blob/b27732c69b114f24358992a5a4d170bc94e2ceaf/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/LdapGroupsMapping.java#L476] > Looks like having an issue if in the middle of the loop a *NamingException* > is caught: > The groups variable is not reset in the catch clause and therefore the > fallback lookup cannot be executed (when goUpHierarchy==0 at least): > || > {code:java} > if (groups.isEmpty() || goUpHierarchy > 0) { > groups = lookupGroup(result, c, goUpHierarchy); > } > {code} > > Consequence is that only a partial list of groups is returned, which is not > correct. > Following options could be used as solution: > * Reset the group to an empty list in the catch clause, to trigger the > fallback query. > * Add an option flag to enable ignoring groups with Naming Exception (since > they are not groups most probably) > Independently, would any issue also occur (and therefore full list cannot be > returned) in the first lookup as well as in the fallback query, the method > should/could(with option flag) throw an Exception, because in some scenario > accuracy is important. -- This message was sent by Atlassian Jira (v8.20.7#820007) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org