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From "Jerry Cwiklik (JIRA)" <...@uima.apache.org>
Subject [jira] [Closed] (UIMA-4397) DUCC Agent throws NumberFormatException when scraping cpu time from top
Date Mon, 03 Aug 2015 14:29:04 GMT

     [ https://issues.apache.org/jira/browse/UIMA-4397?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jerry Cwiklik closed UIMA-4397.
-------------------------------
    Resolution: Fixed

Check for Number Format Exception

> DUCC Agent throws NumberFormatException when scraping cpu time from top
> -----------------------------------------------------------------------
>
>                 Key: UIMA-4397
>                 URL: https://issues.apache.org/jira/browse/UIMA-4397
>             Project: UIMA
>          Issue Type: Bug
>          Components: DUCC
>            Reporter: Jerry Cwiklik
>            Assignee: Jerry Cwiklik
>             Fix For: 2.0.0-Ducc
>
>
> An agent collects per process CPU stats by using the following: 
>  top -b -n 1 -p "+pid+" | tail -n 2 | head -n 1 | awk '{print $9}';
> The above seems to cause a NumberFormatException while trying to convert scraped output
into an integer. The exception is:
> java.lang.NumberFormatException: For input string: "%CPU"
>         at java.lang.NumberFormatException.forInputString(NumberFormatException.java:76)
>         at java.lang.Integer.parseInt(Integer.java:492)
>         at java.lang.Integer.valueOf(Integer.java:593)
>         at org.apache.uima.ducc.agent.processors.LinuxProcessMetricsProcessor.collectProcessCurrentCPU(LinuxProcessMetricsProce\ssor.java:462)
>  
> When running the command by hand I seem to be getting a numeric value. 



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