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https://issues.apache.org/jira/browse/HADOOP-12785?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15139324#comment-15139324
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Chris Nauroth commented on HADOOP-12785:
----------------------------------------
[~mbuzdov], thank you for reporting the issue. Since you've already had to
debug this in your environment, would you be interested in contributing a
patch? If so, instructions on how to contribute are here:
https://wiki.apache.org/hadoop/HowToContribute
(If you don't want to contribute a patch, then that's fine too, and someone
else in the community will pick it up.)
> [Handling exceptions] LdapGroupsMapping.getGroups() do not provide
> information about root cause
> -----------------------------------------------------------------------------------------------
>
> Key: HADOOP-12785
> URL: https://issues.apache.org/jira/browse/HADOOP-12785
> Project: Hadoop Common
> Issue Type: Bug
> Components: security
> Affects Versions: 2.7.1
> Environment: _Operating system_: CentOS Linux 7
> {color:gray}(7.1.1503){color}
> _Platform_: HDP 2.3.4.0, Ambari 2.1.2
> Reporter: Mukhadin Buzdov
> Priority: Minor
> Labels: easyfix
>
> _CommunicationException_ and _NamingException_ are not logged in
> _LdapGroupsMapping.getGroups()_.
> {code:title=LdapGroupsMapping.java|borderStyle=solid}
> public synchronized List<String> getGroups(String user) throws IOException {
> List<String> emptyResults = new ArrayList<String>();
> // ...
> try {
> return doGetGroups(user);
> } catch (CommunicationException e) {
> LOG.warn("Connection is closed, will try to reconnect");
> } catch (NamingException e) {
> LOG.warn("Exception trying to get groups for user " + user + ": " +
> e.getMessage());
> return emptyResults;
> }
> //...
> return emptyResults;
> }
> {code}
> {color:red}It is not possible to understand _LDAP_ level failures.{color}
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