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https://issues.apache.org/jira/browse/HDFS-1298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12888036#action_12888036
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Suresh Srinivas commented on HDFS-1298:
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# Following operations increment read operations count:
#* getFileStatus(), getFileBlockLocations(), open(), getContentSummary(),
listStatus(), checkStatistics(), getFileChecksum()
# Following operations increment write operations count:
#* mkdirs(), create(), setReplication(), rename(), setPermission(), setTimes(),
setOwner(), delete()
# Large read operation count is incremented when performing listStatus() on a
large directory, for every iterative step.
> Add support in HDFS to update statistics that tracks number of file system
> operations in FileSystem
> ---------------------------------------------------------------------------------------------------
>
> Key: HDFS-1298
> URL: https://issues.apache.org/jira/browse/HDFS-1298
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 0.22.0
> Reporter: Suresh Srinivas
> Assignee: Suresh Srinivas
> Fix For: 0.22.0
>
>
> See HADOOP-6859 for the new statistics.
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