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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 -- This message was sent by Atlassian JIRA (v6.3.4#6332)