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Date: Wed, 3 Sep 2014 06:43:51 +0000 (UTC)
From: "Swapnil Daingade (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HADOOP-11044) FileSystem counters can overflow
 for large number of readOps, largeReadOps, writeOps
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     [ https://issues.apache.org/jira/browse/HADOOP-11044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Swapnil Daingade updated HADOOP-11044:
--------------------------------------
    Attachment: 11044.patch2

* Made changes suggested by Gary
* Used the new methods where File system counters are updated.


> FileSystem counters can overflow for large number of readOps, largeReadOps, writeOps
> ------------------------------------------------------------------------------------
>
>                 Key: HADOOP-11044
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11044
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 2.5.0, 2.4.1
>            Reporter: Swapnil Daingade
>            Priority: Minor
>         Attachments: 11044.patch2
>
>
> The org.apache.hadoop.fs.FileSystem.Statistics.StatisticsData class defines readOps, largeReadOps, writeOps as int. Also the The org.apache.hadoop.fs.FileSystem.Statistics class has methods like getReadOps(), getLargeReadOps() and getWriteOps() that return int. These int values can overflow if the exceed 2^31-1 showing negative values. It would be nice if these can be changed to long.


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