PH06102: IBM DEVELOPER FOR Z SYSTEMS V14.1.3 SLOW RESPONSES DURING SAVE OPERATIONS AND MISSING TIMEOUT INDICATOR IN OPERATOR COMMANDS

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Using IBM Developer for z Systems  v14.1.3 a coordination
  problem in the routines that figure out who owns MVS file locks
  can cause slow WRITE and READ during the SAVE process.
  In parallel, we can notice the lack of timeout indicators and
  missing information in DISPLAY PROCESS and DISPLAY CLIENT
  operator commands.
  
  If two users on the same threadpool attempt to query MVS file
  lock owners at approximately the same time, one of them will
  suffer a 10 second delay.
  This lock owner query processing is called when retrieving the
  attributes for the file, which occurs frequently.
  This is relevant when two users attempt to edit files nearly
  simultaneously.
  This intermittent error also causes the general timeout
  threadpool and slow response to the operator DISPLAY commands.
  
  Moreover, we find that timeout indicators and information may be
  missing in DISPLAY PROCESS and DISPLAY CLIENT operator commands
  

Local fix

• Decreasing the Maxclient value to 7 has stopped the problems
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: 01.All zOS Explorer and IDz users            *
  ****************************************************************
  * PROBLEM DESCRIPTION: 01.In IBM Explorer for z/OS,            *
  *                         intermittent slow response times     *
  *                         may be encountered for MVS file      *
  *                         actions such as read/write, and RSE  *
  *                         'DISPLAY' operator commands may      *
  *                         timeout or contain incomplete        *
  *                         information                          *
  ****************************************************************
  01.In IBM Explorer for z/OS, intermittent slow response times
     may be encountered for MVS file actions such as read/write,
     and RSE 'DISPLAY' operator commands may timeout or contain
     incomplete information
  

Problem conclusion

• 01.Thread synchronization mechanisms have been revised
  

Temporary fix

Comments

APAR Information

• 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 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 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 UI60636

     UP19/01/18 P F901

Fix is available

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