[SPARK-49300] Fix Hadoop delegation token leak when tokenRenewalInterval is not set.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.3
• Fix Version/s: 4.0.0, 3.5.3
• Component/s: Spark Core
• Labels: pull-request-available
• Assignee: Shuyan Zhang
• Reporter: Shuyan Zhang
• Created: 19/Aug/24 08:31
• Updated: 22/Aug/24 21:13
• Resolved: 21/Aug/24 03:08

Description

If tokenRenewalInterval is not set, HadoopFSDelegationTokenProvider#getTokenRenewalInterval will fetch some tokens and renew them to get a interval value. These tokens do not call cancel(), resulting in a large number of existing tokens on HDFS not being cleared in a timely manner, causing additional pressure on the HDFS server.

Issue Links

• links to: GitHub Pull Request #47800
• links to: GitHub Pull Request #47823