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https://issues.apache.org/jira/browse/YARN-2677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14167486#comment-14167486
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Steve Loughran commented on YARN-2677:
--------------------------------------
it also looks like somehow the full kerberos name creeps in —that needs to be
name-shortened the way UGI does
{code}
14/10/10 17:35:45 ERROR main.ServiceLauncher: Exception:
`/users/hb...@hwqe.hortonworks.com/services/org-apache-slider/hbcluster24':
Invalid Path element "hb...@hwqe.hortonworks.com"
org.apache.hadoop.registry.client.exceptions.InvalidPathnameException:
`/users/hb...@apache.org/services/org-apache-slider/hbcluster24': Invalid Path
element "hbase@@APACHE.ORG"
at
org.apache.hadoop.registry.client.binding.RegistryPathUtils.validateElementsAsDNS(RegistryPathUtils.java:78)
at
org.apache.hadoop.registry.client.impl.zk.RegistryOperationsService.validatePath(RegistryOperationsService.java:91)
at
org.apache.hadoop.registry.client.impl.zk.RegistryOperationsService.delete(RegistryOperationsService.java:151)
at
org.apache.slider.server.services.yarnregistry.YarnRegistryViewForProviders.putService(YarnRegistryViewForProviders.java:138)
at
org.apache.slider.server.appmaster.SliderAppMaster.registerServiceInstance(SliderAppMaster.java:1002)
at
org.apache.slider.server.appmaster.SliderAppMaster.createAndRunCluster(SliderAppMaster.java:846)
at
org.apache.slider.server.appmaster.SliderAppMaster.runService(SliderAppMaster.java:507)
{code}
> registry punycoding of usernames doesn't fix all usernames to be DNS-valid
> --------------------------------------------------------------------------
>
> Key: YARN-2677
> URL: https://issues.apache.org/jira/browse/YARN-2677
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: api, resourcemanager
> Affects Versions: 2.6.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
>
> The registry has a restriction "DNS-valid names only" to retain the future
> option of DNS exporting of the registry.
> to handle complex usernames, it punycodes the username first, using Java's
> {{java.net.IDN}} class.
> This turns out to only map high unicode-> ASCII, and does nothing for
> ascii-but-invalid-hostname chars, so stopping users with DNS-illegal names
> (e.g. with an underscore in them) from being able to register
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