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https://issues.apache.org/jira/browse/YARN-11468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17768693#comment-17768693
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ASF GitHub Bot commented on YARN-11468:
---------------------------------------
ferdelyi opened a new pull request, #6114:
URL: https://github.com/apache/hadoop/pull/6114
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### Description of PR
New parameter introduced to enable SSL/TLS for ZK Client for YARN HA, which
takes effect when Curator is used (when
yarn.resourcemanager.ha.curator-leader-elector.enabled is enabled).
There is no unit test for this change, as the Curator client setup is tested
under the Hadoop Common code change HADOOP-18709.
This is the continuation of https://github.com/apache/hadoop/pull/6027
### How was this patch tested?
Via an integration test on my cluster and also created a simple unit test to
show that the new config setting works.
### For code changes:
- [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?
> Zookeeper SSL/TLS support
> -------------------------
>
> Key: YARN-11468
> URL: https://issues.apache.org/jira/browse/YARN-11468
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Reporter: Ferenc Erdelyi
> Assignee: Ferenc Erdelyi
> Priority: Critical
> Labels: pull-request-available
>
> Zookeeper 3.5.5 server can operate with SSL/TLS secure connection with its
> clients.
> [https://cwiki.apache.org/confluence/display/ZOOKEEPER/ZooKeeper+SSL+User+Guide]
> The SSL communication should be possible in the different parts of YARN,
> where it communicates with Zookeeper servers. The Zookeeper clients are used
> in the following places:
> * ResourceManager
> * ZKConfigurationStore
> * ZKRMStateStore
> The yarn.resourcemanager.zk-client-ssl.enabled flag to enable SSL
> communication should be provided in the yarn-default.xml and the required
> parameters for the keystore and truststore should be picked up from the
> core-default.xml (HADOOP-18709)
> yarn.resourcemanager.ha.curator-leader-elector.enabled has to set to true via
> yarn-site.xml to make sure Curator is used, otherwise we can't enable SSL.
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