[TINKERPOP-1824] Update netty version to 4.0.52

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 3.3.0, 3.2.6
• Fix Version/s: 3.2.7, 3.3.1
• Component/s: server
• Assignee: Robert Dale
• Reporter: Robert Dale
• Created: 02/Nov/17 13:07
• Updated: 02/Nov/17 18:31
• Resolved: 02/Nov/17 18:31

Description

https://netty.io/news/2017/09/25/4-0-52-Final-4-1-16-Final.html

The most important changes for 4.0.52.Final and 4.1.16.Final are:

Correctly not write any body when 1xx, 204 or 304 is used as response status code (#7209)
Fix assertion error when closing / shutdown native channel and SO_LINGER is set (#7225)
Reduce performance overhead of ResourceLeakDetector (#7217)
fix Log4J2Logger-FQCN in PatternLayout (%F:%L)%c.%M (#7185)
Enable PooledByteBufAllocator to work, even without a cache (#7195)
Only load native transport if running architecture match the compiled (#7163)
HttpObjectEncoder buffer size estimation (#7161)
AutoClose behavior may infinite loop (#7153)

An issue was also noted on downstream JanusGraph which should not impact Gremlin Server because Gremlin Server has a config option to avoid trying epoll by default - https://github.com/JanusGraph/janusgraph/pull/690

Issue Links

• links to: GitHub Pull Request #742