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From "Xiao Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13346) DelegationTokenAuthenticationHandler writes via closed writer
Date Mon, 07 Nov 2016 20:40:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13346?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Xiao Chen updated HADOOP-13346:
-------------------------------
    Assignee:     (was: Gregory Chanan)

> DelegationTokenAuthenticationHandler writes via closed writer
> -------------------------------------------------------------
>
>                 Key: HADOOP-13346
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13346
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: security
>            Reporter: Gregory Chanan
>            Priority: Minor
>         Attachments: HADOOP-13346.patch
>
>
> By default, jackson's ObjectMapper closes the writer after writing, so in the following
code
> {code}
> ObjectMapper jsonMapper = new ObjectMapper();
> jsonMapper.writeValue(writer, map);
> writer.write(ENTER);
> {code}
> (https://github.com/apache/hadoop/blob/8a9d293dd60f6d51e1574e412d40746ba8175fe1/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/token/delegation/web/DelegationTokenAuthenticationHandler.java#L280-L282)
> writer.write actually writes to a closed stream.  This doesn't seem to cause a problem
with the version of jetty that hadoop uses (those just ignore closes), but causes problems
on later verisons of jetty -- I hit this on jetty 8 while implementing SOLR-9200.



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