A fix is available
APAR status
Closed as program error.
Error description
In IBM Explorer for z/OS V3.1.1.17, when issuing DISPLAY CLIENT operator command, the RSE Threadpool server may be unresponsive with a *timeout* indicator.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: 01.All zExpl and IDz users * **************************************************************** * PROBLEM DESCRIPTION: 01.A change in DGRAM socket writing * * and reading required to fix the * * issue in logon message length * * limitation has caused a side * * effect, resulting the delay in the * * reading end in the processing of * * the message client listing * * responses from the threadpool to * * daemon. * **************************************************************** 01.When the condition happens, the message receiving timing is unexpectedly. As a result, it may lead to an out-of-sync delay for other message flows using the same inter-process communication channel such as lock owner information queries required in opening a dataset member.
Problem conclusion
01.The additional msg length peeking while reading from a DGRAM socket might cause a failure in read-ready status of the socket in the next subsequent read. When the condition happens, the message receiving timing is unexpectedly. The change of msg length peeking is removed; the logon message upper bound has been increased as a replacement fix. Note that further investigation and change for socket communication would be needed for a much larger communication load as needed.
Temporary fix
Comments
APAR Information
APAR number
PH17896
Reported component name
EXP FOR Z/OS HO
Reported component ID
5655EXP23
Reported release
310
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2019-10-09
Closed date
2019-11-27
Last modified date
2020-01-03
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 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 UI66683
UP19/12/07 P F912
Fix is available
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Document Information
Modified date:
03 January 2020