[AVRO-1973] Upgrade netty to the latest 3.x release

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.8.1
• Fix Version/s: 1.9.0
• Component/s: java
• Hadoop Flags: Incompatible change

Release Note

Netty was upgraded from 3.5.13.Final to 3.10.6.Final. After 3.6.0 Netty does not interrupt its worker threads therefore, NettyServer.close() would hang until all the ongoing responder calls finish their job. Normally it means that all the ongoing client requests will be responded before the server stops. It also means that if any of the responder calls are in dead lock NettyServer.close() will never return.

• Assignee: Gabor Szadovszky
• Reporter: Gabor Szadovszky
• Created: 30/Dec/16 16:25
• Updated: 20/Feb/17 08:23
• Resolved: 20/Feb/17 08:23

Description

Netty version 3.5.13 is pretty old. Shall be updated to the latest 3.x release: 3.10.6.
(Not suggesting to upgrade to 4.x as it requires much more effort due to API incompatibilities.)

Issue Links

• relates to: AVRO-1975 Upgrade java dependencies
• links to: GitHub Pull Request #178