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https://issues.apache.org/jira/browse/HDFS-16047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17353302#comment-17353302
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Steve Loughran commented on HDFS-16047:
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moving to HDFS. the base hadoop summary is a treewalk, so unless things change
during the walk it should be complete. HDFS has its own optimisations to avoid
a user overloading the store. Maybe its some caching thing or a side effect of
the optimisation.
> getContentSummary return incorrect filecount
> --------------------------------------------
>
> Key: HDFS-16047
> URL: https://issues.apache.org/jira/browse/HDFS-16047
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: dfsclient
> Affects Versions: 2.7.7
> Environment: HDP:2.7.7
> Reporter: philipse
> Priority: Minor
>
> Hi team
> I got a strange test result when I get hdfs statistics ,the test process
> shows below.
> Any advice will be appreciated ,Thanks in advance.
> {code:java}
> 1、hdfs dfs -count /data/BaseData/Log/mq/2018/02/09/,it shows we have 100 file
> 1 100 9689234070 /data/BaseData/Log/mq/2018/02/09/
> 2、hdfs dfs -ls /data/BaseData/Log/mq/2018/02/09/ ,it shows we have only 98
> items
> Found 98 items
> 3、hdfs dfs -cp /data/BaseData/Log/mq/2018/02/09/*
> /data/BaseData/Log/mq_test/2018/02/09/
> 4、hdfs dfs -count /data/BaseData/Log/mq_test/2018/02/09/ ,it shows we have 98
> items too
> 1 98 9689234070 /data/dpdcadmin/gf13871/test20210528
> 5、hdfs dfs -ls /data/BaseData/Log/mq_test/2018/02/09/ ,it shows we have 98
> items
> Found 98 items
> {code}
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