[
https://issues.apache.org/jira/browse/HADOOP-10173?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Daryn Sharp updated HADOOP-10173:
---------------------------------
Attachment: HADOOP-10173.patch
Only use {{UGI.doAs}} for kerberos, not tokens. No tests because
{{TestSaslRPC}} already proves the changes are sound.
> Remove UGI from DIGEST-MD5 SASL server creation
> -----------------------------------------------
>
> Key: HADOOP-10173
> URL: https://issues.apache.org/jira/browse/HADOOP-10173
> Project: Hadoop Common
> Issue Type: Improvement
> Components: ipc
> Affects Versions: 0.23.0, 3.0.0, 2.4.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Priority: Critical
> Attachments: HADOOP-10173.patch
>
>
> Instantiation of SASL server instances within the readers threads is
> performed within a {{UGI.getCurrentUser().doAs}}. {{getCurrentUser}} is
> synchronized, and doAs also degrades performance. GSSAPI (kerberos) requires
> instantiation within a doAs, but DIGEST-MD5 (token) does not.
--
This message was sent by Atlassian JIRA
(v6.1.4#6159)
