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https://issues.apache.org/jira/browse/HDFS-15786?focusedWorklogId=541248&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-541248
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ASF GitHub Bot logged work on HDFS-15786:
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Author: ASF GitHub Bot
Created on: 25/Jan/21 18:56
Start Date: 25/Jan/21 18:56
Worklog Time Spent: 10m
Work Description: goiri commented on pull request #2643:
URL: https://github.com/apache/hadoop/pull/2643#issuecomment-767037920
Let's do a JIRA for HDFS, one for YARN and one for the rest.
Otherwise this will be massive.
Use this PR just for HDFS.
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Issue Time Tracking
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Worklog Id: (was: 541248)
Time Spent: 2h 50m (was: 2h 40m)
> Minor improvement use isEmpty
> -----------------------------
>
> Key: HDFS-15786
> URL: https://issues.apache.org/jira/browse/HDFS-15786
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Arturo Bernal
> Assignee: Arturo Bernal
> Priority: Minor
> Labels: pull-request-available
> Time Spent: 2h 50m
> Remaining Estimate: 0h
>
> Use isEmpty instead size() > o.
>
> {{size()}} can be *O(1)* or *O(N)*, depending on the {{data structure}};
> {{.isEmpty()}} is never *O(N)*.
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