PK90032: Preconditioning APAR to remove the 50M bytes limitation on XML schema validation.

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• Preconditioning APAR to remove the 50M bytes limitation on XML
  schema validation
  

Local fix

• No Work Around
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: DB2 R910 Users of DSN_XMLVALIDATE.           *
  ****************************************************************
  * PROBLEM DESCRIPTION: Current DB2 9 for z/OS user-defined     *
  *                      function DSN_XMLVALIDATE cannot         *
  *                      validate an XML document larger than    *
  *                      50M bytes. Currently, the XML parser    *
  *                      process invoked through XML validation  *
  *                      does not take advantage of IBM          *
  *                      Specialty Engines (zIIP or zAAP).       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The current DSN_XMLVALIDATE user-defined function is
  implemented as a C stored procedure executing in the WLM
  address space. This limits the size of the XML document to be
  validated to 50M bytes. Also, the XML parser process invoked
  through XML validation does not take advantage of IBM
  Specialty Engines (zIIP or zAAP).
  
  To support validation of XML documents larger than 50M bytes
  and take advantage of IBM Specialty Engines (zIIP or zAAP),
  the validation function needs to be enhanced.
  

Problem conclusion

• DB2 is modified to add a new SQL scalar function,
  SYSIBM.DSN_XMLVALIDATE using z/OS XMLSS
  which can validate up to a maximum length of 2G-1
  bytes, depending on system resources,
  and at the same time take advantage of IBM
  Specialty Engines (zIIP or zAAP).
  

Temporary fix

• *********
           * HIPER *
           *********
  

Comments

APAR Information

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

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

  UK57388

Modules/Macros

• DSNDCUB1 DSNDGCB  DSNDGXB  DSNDNFC  DSNDNRIB
  DSNDSRPB DSNDXDA  DSNDXMLD DSNICCUB DSNICUBC DSNIDILS DSNILREP
  DSNISRTI DSNKSKYG DSNKUKYG DSNNAOUT DSNNKGEN DSNNLEPL DSNNOCCN
  DSNNOCUB DSNNOGET DSNNOGIK DSNNOINS DSNNOIRT DSNNOPAR DSNNORSN
  DSNNORSQ DSNNOSCO DSNNOSRT DSNNOVAL DSNNQFLR DSNNQOP  DSNNQSCN
  DSNNQTOP DSNNQXCA DSNNRGRM DSNNRGSO DSNNRRXS DSNNRXSG DSNNRXSO
  DSNNRXSR DSNNSISC DSNNXDLC DSNURLAP DSNURWBF DSNXFN   DSNXGSFN
  DSNXGXTT DSNXOBFD DSNXOCAS DSNXODTR DSNXOFN2 DSNXORFN DSNXOSCF
  DSNXOST  DSNXRXML DSNXXGEN HDB9910J
  

Fix information

• Fixed component name

  DB2 OS/390 & Z/

• Fixed component ID

  5740XYR00

Applicable component levels

• R910 PSY UK57388

     UP10/06/16 P F006

Fix is available

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