[SPARK-15209] Web UI's timeline visualizations fails to render if descriptions contain single quotes

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.1, 2.0.0
• Fix Version/s: 1.6.2, 2.0.0
• Component/s: Web UI
• Target Version/s: 1.6.2, 2.0.0
• Assignee: Josh Rosen
• Reporter: Josh Rosen
• Created: 08/May/16 03:43
• Updated: 09/May/16 23:24
• Resolved: 09/May/16 23:24

Description

If a Spark job's job description contains a single quote (') then the driver UI's job event timeline will fail to render due to Javascript errors. To reproduce these symptoms, run

sc.setJobDescription("double quote: \" ")
sc.parallelize(1 to 10).count()

sc.setJobDescription("single quote: ' ")
sc.parallelize(1 to 10).count() 

and browse to the driver UI. This will currently result in an "Uncaught SyntaxError" because the single quote is not escaped and ends up closing a Javascript string literal too early.

I think that a simple fix may be to change the relevant JS to use double quotes and then to use the existing XML escaping logic to escape the string's contents.

Issue Links

• links to: [Github] Pull Request #12995 (JoshRosen)