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IJ14947: QRADAR USER INTERFACE CAN BECOME UNRESPONSIVE DUE TO TOMCAT RUNNING OUT OF OPEN FILE HANDLES

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APAR status

  • Closed as program error.

Error description

  • It has been identified that the QRadar User Interface can
    become unresponsive due to running out of open file handles
    when it receives a large number of API calls.
    404 Errors on QRadar Apps tabs can sometimes be visible when
    this issue is occuring.
    Messages similar to the following might be visible in
    /var/log/qradar.log when this issue is occurring:
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]
    java.lang.NullPointerException: Failed to read nva.conf
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.core.platform.NVAReader.getUncachedProperty(NVAReader
    .java:142)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.uiframeworks.auth.AuthUtils.isFetchConfigSetRequest(A
    uthUtils.java:280)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.uiframeworks.auth.AuthUtils.allowSAMLAuth(AuthUtils.j
    ava:322)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.uiframeworks.auth.AuthUtils.isSAMLAuth(AuthUtils.java
    :332)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.uiframeworks.auth.SessionAuthenticator.doAuthenticate
    (SessionAuthenticator.java:285)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(Authe
    nticatorBase.java:575)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostVa
    lve.java:140)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.uiframeworks.valve.ErrorReportValve.invoke(ErrorRepor
    tValve.java:47)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngi
    neValve.java:87)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapte
    r.java:342)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:479
    )
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.coyote.AbstractProcessorLight.process(AbstractProcess
    orLight.java:66)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.coyote.AbstractProtocol$ConnectionHandler.process(Abs
    tractProtocol.java:806)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(Nio
    Endpoint.java:1498)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcess
    orBase.java:49)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExec
    utor.java:1160)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExe
    cutor.java:635)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(T
    askThread.java:61)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.lang.Thread.run(Thread.java:812)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle] Caused by:
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]
    java.io.FileNotFoundException: /opt/qradar/conf/nva.conf (Too
    many open files)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.io.FileInputStream.open0(Native Method)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.io.FileInputStream.open(FileInputStream.java:212)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.io.FileInputStream.<init>(FileInputStream.java:152)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.io.FileInputStream.<init>(FileInputStream.java:104)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    sun.net.www.protocol.file.FileURLConnection.connect(FileURLConne
    ction.java:103)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    sun.net.www.protocol.file.FileURLConnection.getInputStream(FileU
    RLConnection.java:201)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    java.net.URL.openStream(URL.java:1057)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.core.platform.PlatformConfiguration.readConfigFile(Pl
    atformConfiguration.java:331)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    at
    com.q1labs.core.platform.NVAReader.getUncachedProperty(NVAReader
    .java:128)
    [tomcat.tomcat] [HttpServletRequest-1537-Idle]    ... 18 more
    

Local fix

  • No workaround available.
    

Problem summary

  • This issue was fixed in QRadar QRM QVM release of 7.3.2 GA
    interimfix 01 and 7.3.2 patch 1.
    

Problem conclusion

  • This issue was fixed in QRadar QRM QVM release of 7.3.2 GA
    interimfix 01 and 7.3.2 patch 1.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IJ14947

  • Reported component name

    QRADAR SOFTWARE

  • Reported component ID

    5725QRDSW

  • Reported release

    732

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-03-22

  • Closed date

    2019-04-15

  • Last modified date

    2019-04-15

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    QRADAR SOFTWARE

  • Fixed component ID

    5725QRDSW

Applicable component levels

[{"Business Unit":{"code":"BU048","label":"IBM Software"}, "Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"732","Edition":""}]

Document Information

Modified date:
15 April 2019