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SI55641 - OSP-DB DNS LOOKUP DELAY FOR SQL CONNECT

PTF ( Program Temporary Fixes ) Cover letter


Order this fix

Abstract

OSP-DB DNS LOOKUP DELAY FOR SQL CONNECT


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770SS1  V7R2M0    SI55644   00/00    0000
CO   5770SS1  V7R2M0    SI55643   00/00    0000
CO   5770SS1  V7R2M0    SI55642   00/00    0000
CO   5770SS1  V7R2M0    SI56023   00/00    0000
CO   5770SS1  V7R2M0    SI55169   00/00    0000
CO   5770SS1  V7R2M0    SI53865   00/00    0000
CO   5770SS1  V7R2M0    SI53866   00/00    0000



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APAR Error Description / Circumvention

-----------------------------------------------
SQL Performance problem during connect due to getnameinfo() call
in QSQCONN exacerbated by poor performing DNS.  This call is to
retrieve the built-in global variable CLIENT_HOST value.

CORRECTION FOR APAR SE60917 :
-----------------------------
Remove getnameinfo() call from connect path (QSQCONN) and move
it into global variable path so that when CLIENT_HOST is
requested, the DNS lookup expense is incurred for those that use
the variable.

CIRCUMVENTION FOR APAR SE60917 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
   SI55608      OSP-MSGSQL0303 SQL FUNCTION W/SUBSELECT ASSIGNS BLANKS VIA C
   SI55421      OSP-DB-OTHER-F/QSQRUN3-T/QSQRUN3-MSGMCH1210 A MSGMCH1210 MAY
   SI55318      OSP-DB INTERNAL MAINTENANCE
   SI55272      OSP-DB-OTHER-T/QSQSBAS-MSGMCH1210 MODULE QSQVATTR PROCEDURE
   SI55254      OSP-DB-OTHER-INCORROUT DESCRIBE USING DESCRIPTOR STATEMENT -
   SI55168      OSP-DB-OTHER-RC2-MSGSQL7049
   SI55114      OSP-DB-OTHER-UNPRED QSQSVCDMP SPOOLED FILE CREATED
   SI54785      OSP-DB-MSGSQL0901 OPEN USING passing a lob global variable
   SI54695      OSP-DB Internal Maintenance
   SI54584      OSP-DB-OTHER-T/QQQOOODBOP-MSGMCH3601
   SI54498      OSP-DB-OTHER-T/QSQSBAS2-MSGMCH1210 MODULE QSQEXPEVAL
   SI54463      OSP-DB Internal Maintenance
   SI54405      OSP-DB Internal Maintenance
   SI54309      OSP-DB-OTHER-T/QQQOOODBOP-MSGMCH3601
   SI54273      OSP-DB-OTHER-INCORROUT STRDBMON QQI6 VALUE IS TOO LARGE
   SI54124      OSP-DB DISPLAY LONG FIELD NAMES FOR SOME SQ MESSAGES
   SI54040      OSP-DB Support HOSTVAR parameter on STRDBMON command - Phase
   SI53993      OSP-DB-OTHER-RC540-MSGSQL0904 A MSGSQL0904 RESOURCE LIMIT TY
   SI53864      OSP-DB-OTHER-F/STRINGHIGHUSE4K-T/QSQROUTX-MSGMCH0601 MCH3601
   SI53659      OSP-DB-OTHER-F/QSQRUND-T/QSQRUN2-MSGSQL0901 MCH1210 F/QSQRUN
   SI53527      OSP-DB-OTHER-UNPRED SERVICEABILITY CHANGE
   SI53346      OSP-DB-OTHER-UNPRED SERVICEABILITY CHANGE
   SI53269      OSP-DB-MSGCPF2471-F/QSQROUTE-MSGMCH1210-F/QSQFETCH UNINIT CU
   SI53224      OSP-DB-OTHER-F/QSQROUTQ-T/QSQROUTQ-MSGMCH1210 A MSGMCH1210 M
   SI53224      OSP-DB-OTHER-UNPRED SERVICEABILITY CHANGE TO DIAGNOSE MSGMCH
   SI53069      OSP-DB-OTHER-UNPRED SERVICEABILITY CHANGE
   SI52975      OSP-DB-MSGSQL0517-F/QSQRUN3 PREPARE/EXEC STMT FAILURE USING
   SI52747      OSP-MSGSQL0904 JDBC APPLICATION USING BATCH UPDATES IS LEAKI
   SI52616      OSP-DB-MSGSQL7971-F/QSQCONN CLT SPC REG INIT WSQG_DB2_MODULE
   SI52542      OSP-PERFM 1GB TERASPACE FILE EXTENDS CAUSING DRIVES TO BE BU
   SI52517      OSP-DB Internal Maintenance
   SI52460      OSP-DB INTERNAL MAINTENANCE
   SI52338      OSP-DB-OTHER-MSGSQL0443 SERVICEABILITY ENHANCEMENT
   SI52338      OSP-DB-OTHER-T/QSQROUTX-MSGMCH0602
   SI52273      OSP-DB INTERNAL MAINTENANCE
   SI52011      OSP-DB Internal Maintenance
   SI52011      OSP-DB-OTHER-T/QQQQEXIT-MSGMCH0601
   SI51926      OSP-DB INTERNAL MAINTENANCE
   SI51821      OSP-DB-OTHER-UNPRED SERVICEABILITY ENHANCEMENT
   SI51686      OSP-DB Internal Maintenance
   SI51686      OSP-DB-OTHER-T/QSQMSGAR-MSGCPF2499
   SI51624      OSP-DB-MSGSQL0901-F/QSQGTSPC using LOBs in sql procedure
   SI51580      OSP-DB Internal Maintenance
   SI51464      OSP-DB Internal Maintenance
   SI51448      OSP-DB-MSGSQL0901-F/QSQGTSPC using LOBs in sql procedure
   SI51394      OSP-DB MCH1210 F/T: QSQSTATS/QSQSTATS
   SI51363      OSP-DB-OTHER-F/QSQRUN2-MSGSQL0332 when numeric column follow
   SI51363      OSP-DB-OTHER-INCORROUT SET TRANSACTION ISOLATION from Run SQ
   SI51286      OSP-DB Internal Maintenance
   SI51286      OSP-DB-OTHER-INCORROUT Routine parameter default truncates w
   SI51286      OSP-DB-OTHER-F/QSQCONN-T/QSQCONN-MSGSQL7022 MSGSQL7022 F/QSQ
   SI51239      OSP-DB multiple errors
   SI51239      OSP-DB INTERNAL MAINTENANCE
   SI51239      OSP-DB Independent ASP and SRCPF support for selected SQL bu
   SI51239      OSP-DB-OTHER-F/QSQRUN3-T/QSQRUN3-MSGSQL0301 INSERT FAILS WIT

Summary Information

System.............................. i
Models..............................
Release............................. V7R2M0
Licensed Program............... 5770SS1
APAR Fixed.......................... View details for APAR SE60917
Superseded by:...................... View fix details for PTF SI70580
Recompile........................... N
Library............................. QSYS
MRI Feature ........................ NONE
Cum Level........................... C5135720


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Document information

More support for: i family

Software version: V7R2M0

Operating system(s): OS/400

Reference #: SI55641

Modified date: 13 February 2015