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Posted to dev@uima.apache.org by "Jerry Cwiklik (JIRA)" <de...@uima.apache.org> on 2015/08/03 16:29:04 UTC
[jira] [Closed] (UIMA-4397) DUCC Agent throws NumberFormatException
when scraping cpu time from top
[ 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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