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https://issues.apache.org/jira/browse/HADOOP-13190?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15413891#comment-15413891
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Xiao Chen commented on HADOOP-13190:
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Thanks Wei-Chiu. Patch 3 looks great, +1 pending the following nitter nits:
- {{requests from the same user may be handled by different KMS instances}}
s/user/client/g
- {{clients are unaware there are multiple KMS instances.}} s/there are
multiple KMS instances/of multiple KMS instances at the server-side/g
- In the LBKMSCP example, please use 9600 as the port instead of 16000.
> LoadBalancingKMSClientProvider should be documented
> ---------------------------------------------------
>
> Key: HADOOP-13190
> URL: https://issues.apache.org/jira/browse/HADOOP-13190
> Project: Hadoop Common
> Issue Type: Improvement
> Components: documentation, kms
> Affects Versions: 2.7.0
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Labels: supportability
> Attachments: HADOOP-13190.001.patch, HADOOP-13190.002.patch,
> HADOOP-13190.003.patch
>
>
> Currently, there are two ways to achieve KMS HA.
> The first one, and the only documented one, is running multiple KMS instances
> behind a load balancer.
> https://hadoop.apache.org/docs/stable/hadoop-kms/index.html
> The other way, is make use of LoadBalancingKMSClientProvider which is added
> in HADOOP-11620. However the usage is undocumented.
> I think we should update the KMS document to introduce
> LoadBalancingKMSClientProvider, provide examples, and also update
> kms-site.xml to explain it.
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