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Posted to hdfs-dev@hadoop.apache.org by "Stephen Chu (JIRA)" <ji...@apache.org> on 2013/10/10 19:59:44 UTC
[jira] [Created] (HDFS-5339) WebHDFS URI does not accept logical
nameservices when security is enabled
Stephen Chu created HDFS-5339:
---------------------------------
Summary: WebHDFS URI does not accept logical nameservices when security is enabled
Key: HDFS-5339
URL: https://issues.apache.org/jira/browse/HDFS-5339
Project: Hadoop HDFS
Issue Type: Bug
Components: webhdfs
Affects Versions: 2.2.0
Reporter: Stephen Chu
On an insecure, HA setup, we see that this works:
{code}
[jenkins@hdfs-cdh5-ha-1 ~]$ hdfs dfs -ls webhdfs://ns1/
13/09/27 15:23:52 INFO web.WebHdfsFileSystem: Retrying connect to namenode: hdfs-cdh5-ha-1.ent.cloudera.com/10.20.190.104:20101. Already tried 0 time(s); retry policy is org.apache.hadoop.io.retry.RetryPolicies$FailoverOnNetworkExceptionRetry@5ebc404e, delay 0ms.
Found 5 items
drwxr-xr-x - hbase hbase 0 2013-09-23 09:04 webhdfs://ns1/hbase
drwxrwxr-x - solr solr 0 2013-09-18 12:07 webhdfs://ns1/solr
drwxr-xr-x - hdfs supergroup 0 2013-09-19 11:09 webhdfs://ns1/system
drwxrwxrwt - hdfs supergroup 0 2013-09-18 16:25 webhdfs://ns1/tmp
drwxr-xr-x - hdfs supergroup 0 2013-09-18 15:53 webhdfs://ns1/user
[jenkins@hdfs-cdh5-ha-1 ~]$
{code}
However, when security is enabled, we get the following error:
{code}
[jenkins@hdfs-cdh5-ha-secure-1 ~]$ hdfs dfs -ls webhdfs://ns1/
-ls: java.net.UnknownHostException: ns1
Usage: hadoop fs [generic options] -ls [-d] [-h] [-R] [<path> ...]
[jenkins@hdfs-cdh5-ha-secure-1 ~]$
{code}
I verified that we can use the hdfs://ns1/ URI on the cluster where I see the problem.
Also, I verified on a secure, non-HA cluster that we can use the webhdfs uri in secure mode:
{code}
[jenkins@hdfs-cdh5-secure-1 ~]$ hdfs dfs -ls webhdfs://hdfs-cdh5-secure-1.ent.cloudera.com:20101/
drwxr-xr-x - hbase hbase 0 2013-09-25 10:33 webhdfs://hdfs-cdh5-secure-1.ent.cloudera.com:20101/hbase
drwxrwxr-x - solr solr 0 2013-09-25 10:34 webhdfs://hdfs-cdh5-secure-1.ent.cloudera.com:20101/solr
drwxrwxrwt - hdfs supergroup 0 2013-09-25 10:39 webhdfs://hdfs-cdh5-secure-1.ent.cloudera.com:20101/tmp
drwxr-xr-x - hdfs supergroup 0 2013-09-25 11:00 webhdfs://hdfs-cdh5-secure-1.ent.cloudera.com:20101/user
[jenkins@hdfs-cdh5-secure-1 ~]$
{code}
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