IBM Support

PH24875: IBM EXPLORER FOR Z/OS FAILS WITH OUTOFMEMORYERROR

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • In IBM Developer for z Systems - IDz - v14.1.9 and Explorer for
    z/OS 3.1.1.24, threadpool process RSEDx fails on z/OS with the
    following error:
    
    
    00000080  BPXM023I (RSED) 943
    00000080  JVMDUMP039I Processing dump event "systhrow", detail
    "java/lang/OutOfM
    00000080  emoryError" at 2020/03/02 10:47:51 - please wait.
    
    00000080  BPXM023I (RSED) 155
    00000080  ProcessId(33555236) ASId(01C3) JobName(RSED5   )
    Order(33)  *killed
    00000080  process*
    
    The following Java stack will be shown:
    
    java.lang.StringBuffer.ensureCapacityImpl()
    java.lang.StringBuffer.append()
    org.eclipse.dstore.internal.core.util.XMLgenerator.append()
    
    One instance of "java.lang.StringBuffer" loaded by
    "com.ibm.oti.vm.BootstrapClassLoader @ 0x2cb90308" occupies
    102,401,056 (31.50%) bytes.
    The instance is referenced by
    org.eclipse.dstore.internal.core.server.ServerUpdateHandler @
    0x2e246cf0 DStore UpdateHandlerThread-2496
    

Local fix

  • There is no known workaround at this time
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: 01.All zExpl and IDz users with zExplorer    *
    *                    host possibly running with large message  *
    *                    communication, for example: browsing      *
    *                    with a high number of entries result.     *
    ****************************************************************
    * PROBLEM DESCRIPTION: 01.In IDz 14.1 the STC RSE daemon host  *
    *                         when running might experience the    *
    *                         OutOfMemory error when previously    *
    *                         browsing with high number of         *
    *                         entries result.                      *
    ****************************************************************
    01.During the serialization of the xml message in internal
       communication, the server handler is using a StringBuffer
       with a default capacity and expanded per message size as
       needed. The expanded capacity has not been released.
    

Problem conclusion

  • 01.When sending a new message, besides clearing out the contend
       of the buffer space, the server handler should also shrink
       the capacity (to default size) when it is over the default
       capacity.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PH24875

  • Reported component name

    EXP FOR Z/OS HO

  • Reported component ID

    5655EXP23

  • Reported release

    311

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-04-29

  • Closed date

    2020-05-08

  • Last modified date

    2020-06-01

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

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

Modules/Macros

  • FEJENF70 FEJJCNFG FEJJJCL  FEJJMON  FEJTSO   FEK1SMPE FEK2RCVE
    FEK3ALOC FEK4ZFS  FEK5MKD  FEK6DDEF FEK7APLY FEK8ACPT FEK@CERR
    FEK@CONE FEK@CONF FEK@CUST FEK@DEB  FEK@DESC FEK@FLOW FEK@GEN
    FEK@GENW FEK@ISPF FEK@IVP  FEK@IVPD FEK@IVPW FEK@JCN1 FEK@JCNE
    FEK@JESJ FEK@MAIN FEK@MIGO FEK@OPTE FEK@OPTG FEK@OPTN FEK@PRIM
    FEK@RSE1 FEK@RSEO FEK@STRT FEK@TAB1 FEK@TAB2 FEK@TAB3 FEK@WRK1
    FEK@WRK2 FEK@WRK3 FEK@WRK4 FEK@WRK5 FEKAPPCC FEKAPPCL FEKAPPCX
    FEKATTR  FEKDSI   FEKEESX0 FEKFASIZ FEKFATT1 FEKFBLD  FEKFCIPH
    FEKFCLIE FEKFCMOD FEKFCMPR FEKFCMSG FEKFCOMM FEKFCOPY FEKFCOR6
    FEKFCORE FEKFDBBF FEKFDBBP FEKFDBG  FEKFDBG6 FEKFDBGM FEKFDIR
    FEKFDIR6 FEKFDIVP FEKFDST0 FEKFDST1 FEKFDST2 FEKFENVF FEKFENVI
    FEKFENVP FEKFENVR FEKFENVS FEKFEPL  FEKFICUL FEKFISPF FEKFIVP0
    FEKFIVPA FEKFIVPD FEKFIVPI FEKFIVPJ FEKFIVPT FEKFJESM FEKFJESU
    FEKFJVM  FEKFLATR FEKFLDSI FEKFLDSL FEKFLEOP FEKFLOGS FEKFLPTH
    FEKFMAI6 FEKFMAIN FEKFMINE FEKFMINS FEKFMNTL FEKFNTCE FEKFOMVS
    FEKFPATT FEKFPRDS FEKFPTC  FEKFRIVP FEKFRMSG FEKFRSES FEKFRSRV
    FEKFSCMD FEKFSEND FEKFSSL  FEKFSTUP FEKFT000 FEKFT001 FEKFT002
    FEKFT003 FEKFT004 FEKFT005 FEKFT006 FEKFT007 FEKFT008 FEKFT009
    FEKFT010 FEKFT011 FEKFT012 FEKFT013 FEKFT014 FEKFT015 FEKFT016
    FEKFT017 FEKFT018 FEKFT019 FEKFT020 FEKFT021 FEKFT022 FEKFT023
    FEKFTIVP FEKFTRKS FEKFTSO  FEKFUTIL FEKFVERS FEKFXITA FEKFXITL
    FEKFZME  FEKFZMF  FEKFZOS  FEKHCONF FEKHCUST FEKHDEB  FEKHDESC
    FEKHFLOW FEKHGEN  FEKHISPF FEKHIVP  FEKHIVPD FEKHJESJ FEKHMAIN
    FEKHMIGO FEKHOPTE FEKHOPTN FEKHPRIM FEKHRSE1 FEKHRSEO FEKHSTRT
    FEKHTAB1 FEKHTAB2 FEKINIT  FEKKEYS  FEKLOGR  FEKLOGS  FEKM00
    FEKM01   FEKM02   FEKMKDIR FEKMOUNT FEKMSGC  FEKMSGS  FEKRACF
    FEKRSED  FEKSAPF  FEKSAPPL FEKSBPX  FEKSCLAS FEKSCLOG FEKSCMD
    FEKSCPYM FEKSCPYU FEKSDSN  FEKSENV  FEKSETUP FEKSISPF FEKSJCFG
    FEKSJCMD FEKSJMON FEKSLPA  FEKSPROG FEKSPTKT FEKSRSED FEKSSERV
    FEKSSTC  FEKSSU   FEKSUSER FEKXCFGE FEKXCFGI FEKXCFGM FEKXCFGT
    FEKXMAIN FEKXML
    

Fix information

  • Fixed component name

    EXP FOR Z/OS HO

  • Fixed component ID

    5655EXP23

Applicable component levels

  • R310 PSY UI69399

       UP20/05/16 P F005

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSBDYH","label":"IBM Explorer for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Line of Business":{"code":"LOB35","label":"Mainframe SW"}}]

Document Information

Modified date:
02 June 2020