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https://issues.apache.org/jira/browse/HADOOP-18709?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17721358#comment-17721358
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ASF GitHub Bot commented on HADOOP-18709:
-----------------------------------------
ferdelyi opened a new pull request, #5638:
URL: https://github.com/apache/hadoop/pull/5638
… SSL/TLS into the common library
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### Description of PR
In order to enable SSL/TLS for the ZK Client to communicate with the secured
ZK Server, the configuration parameters for the truststore and the keystore are
introduced into the core-default.xml.
These parameters then used in the ZKCuratorManager class to set up the ZK
Client for SSL/TLS encryption when the caller sets the sslEnabled flag true.
The secured ZK Client uses Netty, hence the dependency is included in the
pom.xml.
A separate unit test class was introduced (TestSecureZKCuratorManager), as
the secured server needs a very different setup from the already implemented
unit test (TestZKCuratorManager).
### How was this patch tested?
This patch was tested with a unit test.
### 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?
> Add curator based ZooKeeper communication support over SSL/TLS into the
> common library
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-18709
> URL: https://issues.apache.org/jira/browse/HADOOP-18709
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Ferenc Erdelyi
> Assignee: Ferenc Erdelyi
> Priority: Major
>
> With HADOOP-16579 the ZooKeeper client is capable of securing communication
> with SSL.
> To follow the convention introduced in HADOOP-14741, proposing to add to the
> core-default.xml the following configurations, as the groundwork for the
> components to enable encrypted communication between the individual
> components and ZooKeeper:
> * hadoop.zk.ssl.keystore.location
> * hadoop.zk.ssl.keystore.password
> * hadoop.zk.ssl.truststore.location
> * hadoop.zk.ssl.truststore.password
> These parameters along with the component-specific ssl.client.enable option
> (e.g. yarn.zookeeper.ssl.client.enable) should be passed to the
> ZKCuratorManager to build the CuratorFramework. The ZKCuratorManager needs a
> new overloaded start() method to build the encrypted communication.
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