[HADOOP-18584] [NFS GW] Fix regression after netty4 migration - ASF JIRA

Voters

Watch issue

Watchers

Create sub-task

Link

Clone

Update Comment Author

Replace String in Comment

Update Comment Visibility

Delete Comments

XML

Word

Printable

JSON

Details

Type: Bug
Status: Resolved
Priority: Major
Resolution: Fixed
Affects Version/s: 3.4.0
Fix Version/s: 3.4.0, 3.3.6
Component/s: common
Labels:
- pull-request-available

Target Version/s:

3.4.0, 3.3.6
Hadoop Flags:

Reviewed

Description

Two bugs were found recently. Both related to hadoop portmap utility.

(1) The ChannelHandler that can be added to a ChannelPipeline in Netty4 must be Shareable. However, IdleStateHandler, used by Portmap is not. We need to fix it otherwise hadoop portmap may fail to start.

(2) RpcUdpResponseStage does not get the request from client (hadoop mountd) because of response type mismatch, and therefore it does not respond back to client request.

This is a regression from ~~HADOOP-11245~~ but I consider it not a blocker, because most recent Linux distro supports rpcbind and there's little reason to use Hadoop's portmap.