crunch-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Micah Whitacre (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (CRUNCH-600) Credentials are lost in local runner mode
Date Mon, 11 Apr 2016 15:47:25 GMT

     [ https://issues.apache.org/jira/browse/CRUNCH-600?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Micah Whitacre reassigned CRUNCH-600:
-------------------------------------

    Assignee: Micah Whitacre

> Credentials are lost in local runner mode
> -----------------------------------------
>
>                 Key: CRUNCH-600
>                 URL: https://issues.apache.org/jira/browse/CRUNCH-600
>             Project: Crunch
>          Issue Type: Bug
>            Reporter: Igor Bernstein
>            Assignee: Micah Whitacre
>            Priority: Minor
>             Fix For: 0.14.0
>
>         Attachments: CRUNCH-600-c.patch
>
>
> The credentials attached to a job are lost when CrunchOutputs builds a new Job in getJob.
> For example, the following scenario fails:
> {code:title=MyTarget.java}
> class MyTarget implements MapReduceTarget {
>   void configureForMapReduce(Job job, PType<?> ptype, Path outputPath, String name)
{
>     job.getCredentials().addSecretKey("myPassword", "secret".getBytes());
>     CrunchOutputs.addNamedOutput(job, name, FormatBundle.forOutput(MyOutputFormat.class),
Object.class);
>   }
>   //..
> }
> {code}
> {code:title=MyOutputFormat.java}
> class MyOutputFormat extends OutputFormat<Object,Object> {
>   public RecordWriter<Object, Object> getRecordWriter(TaskAttemptContext context)
throws IOException, InterruptedException {
>     Assert.equals("secret".getBytes(), context.getCredentials().getSecretKey("myPassword"));
>   }
> }
> {code}
> This happens because CrunchOutputs.getJob copies the baseConf using the base Configuration
class and the base Configuration class doesn't have a notion of Credentials, so the credentials
get dropped.
> This issue only manifests itself when using the local runner. In an actual hadoop cluster
the credentials will be inherited from UserGroupInformation.



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

Mime
View raw message