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https://issues.apache.org/jira/browse/HADOOP-18584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17681490#comment-17681490
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ASF GitHub Bot commented on HADOOP-18584:
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jojochuang commented on PR #5252:
URL: https://github.com/apache/hadoop/pull/5252#issuecomment-1407226613
@szetszwo could you please take a look? Need a Netty expert here :)
> [NFS GW] Fix regression after netty4 migration
> ----------------------------------------------
>
> Key: HADOOP-18584
> URL: https://issues.apache.org/jira/browse/HADOOP-18584
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 3.4.0
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Major
> Labels: pull-request-available
>
> 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.
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