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https://issues.apache.org/jira/browse/HADOOP-4429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12640227#action_12640227
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Alex Loddengaard commented on HADOOP-4429:
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I originally stumbled on this problem when using an internal derivative of
Ubuntu, with funky LDAP settings. Running Hadoop would generate the following
error:
bq. ERROR dfs.NameNode: java.io.IOException:
javax.security.auth.login.LoginException: Login failed: id: cannot find name
for group ID
The last portion of the error, "Login failed: id: cannot find name of group
ID," would also occur when I ran the "groups" binary from a command line.
I propose using a default group in the case that getting a user's groups fails.
> Misconfigured UNIX Groups Break Hadoop
> --------------------------------------
>
> Key: HADOOP-4429
> URL: https://issues.apache.org/jira/browse/HADOOP-4429
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Environment: UNIX, Linux
> Reporter: Alex Loddengaard
> Priority: Minor
>
> If a UNIX user has misconfigured groups, either locally or through LDAP, then
> Hadoop will not be able to start.
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