[YARN-2770] Timeline delegation tokens need to be automatically renewed by the RM

• Type: Sub-task
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.6.0
• Component/s: timelineserver
• Target Version/s: 2.6.0
• Hadoop Flags: Reviewed
• Assignee: Zhijie Shen
• Reporter: Zhijie Shen
• Created: 29/Oct/14 17:20
• Updated: 01/Dec/14 03:09
• Resolved: 31/Oct/14 20:19

Description

YarnClient will automatically grab a timeline DT for the application and pass it to the app AM. Now the timeline DT renew is still dummy. If an app is running for more than 24h (default DT expiry time), the app AM is no longer able to use the expired DT to communicate with the timeline server. Since RM will cache the credentials of each app, and renew the DTs for the running app. We should provider renew hooks similar to what HDFS DT has for RM, and set RM user as the renewer when grabbing the timeline DT.

Issue Links

• is depended upon by: YARN-2779 SystemMetricsPublisher can use Kerberos directly instead of timeline DT