[HDFS-15249] ThrottledAsyncChecker is not thread-safe.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.1, 3.4.0
• Component/s: federation
• Hadoop Flags: Reviewed
• Assignee: Toshihiro Suzuki
• Reporter: Toshihiro Suzuki
• Created: 30/Mar/20 07:34
• Updated: 24/Mar/21 07:12
• Resolved: 07/Apr/20 05:38

Description

ThrottledAsyncChecker should be thread-safe because it can be used by multiple threads when we have multiple namespaces.

checksInProgress and completedChecks are respectively HashMap and WeakHashMap which are not thread-safe. So we need to put them in synchronized block whenever we access them.

Issue Links

• links to: GitHub Pull Request #1922