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https://issues.apache.org/jira/browse/HADOOP-17358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17703885#comment-17703885
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ASF GitHub Bot commented on HADOOP-17358:
-----------------------------------------
OpsHubTech opened a new pull request, #5504:
URL: https://github.com/apache/hadoop/pull/5504
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### Description of PR
### How was this patch tested?
### For code changes:
- [ ] 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?
> Improve excessive reloading of Configurations
> ---------------------------------------------
>
> Key: HADOOP-17358
> URL: https://issues.apache.org/jira/browse/HADOOP-17358
> Project: Hadoop Common
> Issue Type: Bug
> Components: conf
> Reporter: Ahmed Hussein
> Assignee: Ahmed Hussein
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.2.2, 3.3.1, 3.4.0, 2.10.2, 3.2.3
>
> Time Spent: 2.5h
> Remaining Estimate: 0h
>
> [~daryn] reported that adding a new resource to a conf forces a complete
> reload of the conf instead of just loading the new resource. Instantiating a
> {{SSLFactory}} adds a new resource for the ssl client/server file. Formerly
> only the KMS client used the SSLFactory but now TLS/RPC uses it too.
> The reload is so costly that RM token cancellation falls behind by hours or
> days. The accumulation of uncancelled tokens in the KMS rose from a few
> thousand to hundreds of thousands which risks ZK scalability issues causing a
> KMS outage.
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