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https://issues.apache.org/jira/browse/HDFS-16650?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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JiangHua Zhu updated HDFS-16650:
--------------------------------
Description:
Getting timestamps in Centralized cache management is done in the following
ways:
long now = new Date().getTime();
{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:
long now = Time.now();
was:
Getting timestamps in Centralized cache management is done in the following
ways:
long now = new Date().getTime();
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:
long now = Time.now();
> 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
> Reporter: JiangHua Zhu
> Assignee: JiangHua Zhu
> Priority: Minor
> Labels: pull-request-available
> Fix For: 2.9.2
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Getting timestamps in Centralized cache management is done in the following
> ways:
> long now = new Date().getTime();
> {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:
> long now = Time.now();
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