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https://issues.apache.org/jira/browse/HADOOP-17358?focusedWorklogId=510443&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-510443
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ASF GitHub Bot logged work on HADOOP-17358:
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Author: ASF GitHub Bot
Created on: 11/Nov/20 20:39
Start Date: 11/Nov/20 20:39
Worklog Time Spent: 10m
Work Description: jojochuang merged pull request #2436:
URL: https://github.com/apache/hadoop/pull/2436
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Issue Time Tracking
-------------------
Worklog Id: (was: 510443)
Time Spent: 2h 20m (was: 2h 10m)
> 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
> Time Spent: 2h 20m
> 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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