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https://issues.apache.org/jira/browse/HDFS-16684?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17583098#comment-17583098
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ASF GitHub Bot commented on HDFS-16684:
---------------------------------------
snmvaughan opened a new pull request, #4786:
URL: https://github.com/apache/hadoop/pull/4786
Backport from trunk. The JournalNodeSyncer will include the local instance
in syncing when using a bind host (e.g. 0.0.0.0). There is a mechanism that is
supposed to exclude the local instance, but it doesn't recognize the
meta-address as a local address.
Running with bind addresses set to 0.0.0.0, the JournalNodeSyncer will log
attempts to sync with itself as part of the normal syncing rotation. For an HA
configuration running 3 JournalNodes, the "other" list used by the
JournalNodeSyncer will include 3 proxies.
Exclude bound local addresses, including the use of a wildcard address in
the bound host configurations, while still allowing multiple instances on the
same host.
Allow sync attempts with unresolved addresses, so that sync attempts can
drive resolution as servers become available.
- [X] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
licensed in a way that is compatible for inclusion under [ASF
2.0](http://www.apache.org/legal/resolved.html#category-a)?
- [ ] If applicable, have you updated the `LICENSE`, `LICENSE-binary`,
`NOTICE-binary` files?
> Exclude self from JournalNodeSyncer when using a bind host
> ----------------------------------------------------------
>
> Key: HDFS-16684
> URL: https://issues.apache.org/jira/browse/HDFS-16684
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: journal-node
> Environment: Running with Java 11 and bind addresses set to 0.0.0.0.
> Reporter: Steve Vaughan
> Assignee: Steve Vaughan
> Priority: Major
> Labels: pull-request-available
>
> The JournalNodeSyncer will include the local instance in syncing when using a
> bind host (e.g. 0.0.0.0). There is a mechanism that is supposed to exclude
> the local instance, but it doesn't recognize the meta-address as a local
> address.
> Running with bind addresses set to 0.0.0.0, the JournalNodeSyncer will log
> attempts to sync with itself as part of the normal syncing rotation. For an
> HA configuration running 3 JournalNodes, the "other" list used by the
> JournalNodeSyncer will include 3 proxies.
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