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https://issues.apache.org/jira/browse/HADOOP-18584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17651362#comment-17651362
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ASF GitHub Bot commented on HADOOP-18584:
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jojochuang opened a new pull request, #5252:
URL: https://github.com/apache/hadoop/pull/5252
### Description of PR
[HADOOP-18584](https://issues.apache.org/jira/browse/HADOOP-18584)
### How was this patch tested?
Draft. Untested.
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
> [NFS GW] IdleStateHandler is not Shareable
> ------------------------------------------
>
> 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
> Priority: Major
>
> 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.
> 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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