[JIRA] (JENKINS-53665) Micro Focus Application Automation Tools

brainsam@yandex.ru (JIRA)

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Sep 19, 2018, 12:53:02 PM9/19/18

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Alexander Moiseenko created an issue

Jenkins /

JENKINS-53665

Micro Focus Application Automation Tools - file descriptor leak

Issue Type:	Bug
Assignee:	Daniel Gront
Attachments:	jenkins-fds.png, lsof-jenkins.zip
Components:	hp-application-automation-tools-plugin
Created:	2018-09-19 16:52
Environment:	jenkins 2.121.1
Priority:	Minor
Reporter:	Alexander Moiseenko

At some point in time, with the increase in the number of builds on Jenkins, we faced a "Too many open files" exception in Jenkins log.
Analysis of lsof command output (lsof-jenkins.zip) showed that there are a lot of open files in some projects (Freestyle or Maven type) created at build completion on Jenkins master with name:

 
                                                                {$JENKINS_HOME}/jobs/test_project/builds/140/GetJUnitTestResults4300391778772244764.tmp

I found file with non zero size with the folowing content:

 
                                                                $  cat GetJUnitTestResults1715785790472604747.tmp
▒▒ ♣sr Gcom.hpe.application.automation.tools.octane.tests.junit.JUnitTestResult▒▒▒▒▒▒▒  JdurationJ startedL     classNamet Ljava/lang/String;L ◄externalReportUrlq ~ L
moduleNameq ~ L packageNameq ~ L ♠resultt JLcom/hpe/application/automation/tools/octane/tests/junit/TestResultStatus;L  testErrort CLcom/hpe/application/automation/tools/octane/tests/junit/TestErrorTestTryOrFailptp◄storage-test-coret  ~r Hcom.hpe.application.automation.tools.octane.tests.junit.TestResultStatus          xr java.lang.Enum          xpt ♠PASSEDsr Acom.hpe.application.automation.toTestTryOrFailpq~~x♠qi~.qe~tqr~ot▒♣test1sqL~rrorMsgq ♠ Le▒":{t   errorTypeq ~ L
TestTryOrFailpq~~t♠qt~sq2~q ~         $  e▒":{t

So I decided that hp-application-automation-tools-plugin leaves files opened after build finish.

The graph shows number of opened files by jenkins process. The red line is when plugin turned off

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daniel.gront@microfocus.com (JIRA)

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Sep 20, 2018, 1:18:03 AM9/20/18

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Daniel Gront updated an issue

Jenkins /

JENKINS-53665

Micro Focus Application Automation Tools - file descriptor leak

Change By:	Daniel Gront
Labels:	octane

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daniel.gront@microfocus.com (JIRA)

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Sep 20, 2018, 1:18:03 AM9/20/18

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Daniel Gront assigned an issue to Michael Seldin

Jenkins /

JENKINS-53665

Micro Focus Application Automation Tools - file descriptor leak

Change By:	Daniel Gront
Assignee:	Daniel Gront Michael Seldin

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vberestov@gmail.com (JIRA)

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Oct 3, 2018, 9:22:06 AM10/3/18

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veniamin b commented on

JENKINS-53665

Re: Micro Focus Application Automation Tools - file descriptor leak

It seems fd leak caused by this code:

https://github.com/jenkinsci/hpe-application-automation-tools-plugin/blob/52c0da26c9e93f404eb537e4f5f2d0aa057b4254/src/main/java/com/microfocus/application/automation/tools/octane/tests/junit/JUnitExtension.java#L252

Im not sure, but after catch {throw ..}

 
                                                                os.flush()
oos.close()

should never happen.

May be

 
                                                                finally {
    os.flush() 
    oos.close()
} 
                                                            

could help.

But im still not sure.