[HBASE-27180] Multiple possible buffer leaks

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.5.0, 3.0.0-alpha-4, 2.4.14
• Component/s: netty, regionserver
• Hadoop Flags: Reviewed
• External issue URL: https://github.com/apache/hbase/pull/4597
• Assignee: Norman Maurer
• Reporter: Norman Maurer
• Created: 05/Jul/22 17:50
• Updated: 13/Jul/22 04:49
• Resolved: 08/Jul/22 00:35

Description

When using ByteBuf you need to be very careful about releasing it as otherwise you might leak data. There are various places in the code-base where such a leak could happen as the buffer is not correctly released

Issue Links

• relates to: HBASE-26708 Netty "leak detected" and OutOfDirectMemoryError due to direct memory buffering with SASL implementation
• links to: GitHub Pull Request #4597