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https://issues.apache.org/jira/browse/HDFS-14139?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ayush Saxena reassigned HDFS-14139:
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Assignee: Ayush Saxena
> FsShell ls and stat command return different Modification Time on display.
> --------------------------------------------------------------------------
>
> Key: HDFS-14139
> URL: https://issues.apache.org/jira/browse/HDFS-14139
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: fs, shell
> Reporter: Fred Peng
> Assignee: Ayush Saxena
> Priority: Major
> Labels: easyfix
>
> When we run "hdfs dfs -ls" or "hdfs dfs -stat" on the same file/directory,
> the time of results are different.
> Like this:
> >> $ ./hdfs dfs -stat /user/xxx/collie-pt-canary
> >> 2018-12-10 10:04:57
> >> ./hdfs dfs -ls /user/xxx/collie-pt-canary
> >> -rw-r--r-- 3 xxx supergroup 0 2018-12-10 18:04
> Strangely, we found the time is different(8 hours). The stat command uses UTC
> timezone, but the Ls command uses system local timezone.
> Why does the stat command use UTC timezone, but Ls not?
> {code:java}
> // in Stat.java
> timeFmt = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
> timeFmt.setTimeZone(TimeZone.getTimeZone("UTC"));{code}
> By the way, in Unix/Linux the ls and stat return the same time on display.
> Should we unify the timezone?
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