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https://issues.apache.org/jira/browse/HDFS-16650?focusedWorklogId=788447&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-788447
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ASF GitHub Bot logged work on HDFS-16650:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 07/Jul/22 01:40
Start Date: 07/Jul/22 01:40
Worklog Time Spent: 10m
Work Description: jianghuazhu commented on PR #4528:
URL: https://github.com/apache/hadoop/pull/4528#issuecomment-1176946951
Thanks @ZanderXu .
Issue Time Tracking
-------------------
Worklog Id: (was: 788447)
Time Spent: 50m (was: 40m)
> Optimize the cost of obtaining timestamps in Centralized cache management
> -------------------------------------------------------------------------
>
> Key: HDFS-16650
> URL: https://issues.apache.org/jira/browse/HDFS-16650
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: caching
> Affects Versions: 2.9.2
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> Getting timestamps in Centralized cache management is done in the following
> ways:
> {code:java}
> long now = new Date().getTime();
> {code}
> This approach doesn't seem to be optimal since we only use it once here.
> It might be better to use the tool Time to get the timestamp. E.g:
> {code:java}
> long now = Time.now();
> {code}
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