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https://issues.apache.org/jira/browse/HADOOP-11119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14562422#comment-14562422
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Vinayakumar B commented on HADOOP-11119:
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{code} if (emptierInterval > deletionInterval || emptierInterval == 0) {
LOG.info("The configured checkpoint interval is " +
(emptierInterval / MSECS_PER_MINUTE) + " minutes." +
" Using an interval of " +
(deletionInterval / MSECS_PER_MINUTE) +
" minutes that is used for deletion instead");
this.emptierInterval = deletionInterval;
}{code}
[~aw], I think you are referring to this log. Yeah, since by default
{{emptierInterval}} is 0, and admin might mainly care about
{{deletionInterval}}, just to enable trash, it prints two log messages.
But I think this is Okay as this is using {{deletionInterval}} if
{{emptierInterval}} is more than {{deletionInterval}} or not configured.
Same two log messages will be present at NameNode side without patch too. Below
log is from one of my machine, without patch.
{noformat}2015-05-28 18:38:36,042 INFO org.apache.hadoop.fs.TrashPolicyDefault:
Namenode trash configuration: Deletion interval = 10 minutes, Emptier interval
= 0 minutes.
2015-05-28 18:38:36,043 INFO org.apache.hadoop.fs.TrashPolicyDefault: The
configured checkpoint interval is 0 minutes. Using an interval of 10 minutes
that is used for deletion instead{noformat}
> TrashPolicyDefault init pushes messages to command line
> -------------------------------------------------------
>
> Key: HADOOP-11119
> URL: https://issues.apache.org/jira/browse/HADOOP-11119
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Allen Wittenauer
> Assignee: Brahma Reddy Battula
> Priority: Minor
> Labels: BB2015-05-TBR
> Attachments: HADOOP-11119-002.patch, HADOOP-11119.patch
>
>
> During a fresh install of trunk:
> {code}
> aw-mbp-work:hadoop-3.0.0-SNAPSHOT aw$ bin/hadoop fs -put /etc/hosts /tmp
> aw-mbp-work:hadoop-3.0.0-SNAPSHOT aw$ bin/hadoop fs -rm /tmp/hosts
> 14/09/23 13:05:46 INFO fs.TrashPolicyDefault: Namenode trash configuration:
> Deletion interval = 0 minutes, Emptier interval = 0 minutes.
> Deleted /tmp/hosts
> {code}
> The info message for the Namenode trash configuration isn't very useful.
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