[HADOOP-7947] Validate XMLs if a relevant tool is available, when using scripts

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 3.0.0-alpha1
• Component/s: scripts
• Labels: newbie
• Assignee: Kengo Seki
• Reporter: Harsh J
• Created: 03/Jan/12 11:37
• Updated: 12/May/16 18:25
• Resolved: 28/May/15 18:01

Description

Given that we are locked down to using only XML for configuration and most of the administrators need to manage it by themselves (unless a tool that manages for you is used), it would be good to also validate the provided config XML (*-site.xml) files with a tool like xmllint or maybe Xerces somehow, when running a command or (at least) when starting up daemons.

We should use this only if a relevant tool is available, and optionally be silent if the env. requests.

Issue Links

• relates to: HADOOP-12071 conftest is not documented
• relates to: HADOOP-10623 Provide a utility to be able inspect the config as seen by a hadoop client / daemon
• relates to: HADOOP-12118 Validate xml configuration files with XML Schema