hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9617) HA HDFS client is too strict with validating URI authorities
Date Mon, 03 Jun 2013 20:54:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13673547#comment-13673547
] 

Todd Lipcon commented on HADOOP-9617:
-------------------------------------

Wouldn't we have to add that in other places as well, like viewfs, etc? 

Here's another thought: what would happen if {{DistributedFileSystem.getDefaultPort()}} returned
0 if it's a logical URI? Would that fix the issue?
                
> HA HDFS client is too strict with validating URI authorities
> ------------------------------------------------------------
>
>                 Key: HADOOP-9617
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9617
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs, ha
>    Affects Versions: 2.0.5-alpha
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>         Attachments: HADOOP-9617.patch
>
>
> HADOOP-9150 changed the way FS URIs are handled to prevent attempted DNS resolution of
logical URIs. This has the side effect of changing the way Paths are verified when passed
to a FileSystem instance created with an authority that differs from the authority of the
Path. Previous to HADOOP-9150, a default port would be added to either authority in the event
that either URI did not have a port. Post HADOOP-9150, no default port is added. This means
that a FileSystem instance created using the URI "hdfs://ha-logical-uri:8020" will no longer
process paths containing just the authority "hdfs://ha-logical-uri", and will throw an error
like the following:
> {noformat}
> java.lang.IllegalArgumentException: Wrong FS: hdfs://ns1/user/hive/warehouse/sample_07/sample_07.csv,
expected: hdfs://ns1:8020
> 	at org.apache.hadoop.fs.FileSystem.checkPath(FileSystem.java:625)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.getPathName(DistributedFileSystem.java:173)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:249)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.open(DistributedFileSystem.java:82)
> {noformat}
> Though this is not necessarily incorrect behavior, it is a backward-incompatible change
that at least breaks certain clients' ability to connect to an HA HDFS cluster.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

Mime
View raw message