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From "Swapnil Daingade (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-11044) FileSystem counters can overflow for large number of readOps, largeReadOps, writeOps
Date Thu, 04 Sep 2014 02:26:53 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-11044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Swapnil Daingade updated HADOOP-11044:
--------------------------------------
    Attachment: 11044.patch3

* Modified tests as suggested by Gary.
* I believe the increase in the number of warnings is most probably due to the use of the
now deprecated methods. I cannot access the diffJavacWarnings.txt to confirm.

Please let me know if I should make any other changes.


> 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.patch3
>
>
> 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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