A fix is available
APAR status
Closed as program error.
Error description
Page is put into LPL because of a latch timeout & the below message could be found in the syslog: . 17.27.45 DSNT501I -D3PH DSNB1PER RESOURCE UNAVAILABLE CORRELATION-ID=ENTRGA670022 CONNECTION-ID=CIC3W12 LUW-ID=BBNETCEN.BDB2P0H.D80A8A3FC399 REASON 00C20031 TYPE 00000300 NAME D1OBR01.S1OBR027.X'0002'.X'00028CD5' . 17.27.45 DSNB250E -D3PH DSNIBHUN A PAGE RANGE WAS ADDED TO THE LOGICAL PAGE LIST DATABASE NAME=D1OBR01 SPACE NAME=S1OBR027 INSTANCE=1 DATA SET NUMBER=2 PAGE RANGE X'00028CD5' TO X'00028CD5' START LRSN=X'00D80A8BB913DA697000' END LRSN=X'00D80A8BB913DA697000' START RBA=X'00000000E3E04FF9AA53' LPL TRACE ID=00000002 LPL REASON TYPE=LOGAPPLY
Local fix
RECOVERY ACTION: If DB2 didn't recover LPL objects automatically, then start the objects manually
Problem summary
**************************************************************** * USERS AFFECTED: * * All Db2 12 for z/OS users of data sharing. * **************************************************************** * PROBLEM DESCRIPTION: * * When a page P-lock exit fails to get * * the page latch during a * * must-complete request, the page would * * be put in LPL and MSGDSNT501I * * would be issued to indicate that the * * resource is unavailable. * **************************************************************** * RECOMMENDATION: * * Apply corrective PTF when available * **************************************************************** During a page P-lock exit, Db2 will attempt to acquire the page latch. If the request times out for a must-complete situation such as a DSNIBHUN backout, MSGDSNT501I would be issued after the maximum retries and the page would be put in LPL.
Problem conclusion
To avoid pages going into LPL, the time out value to get a page latch for the page P-lock exit was increased when the request is for a must-complete request. If this page latch request fails, the page P-lock exit will take a diagnostic dump.
Temporary fix
Comments
APAR Information
APAR number
PH30475
Reported component name
DB2 OS/390 & Z/
Reported component ID
5740XYR00
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-10-13
Closed date
2021-02-10
Last modified date
2021-03-05
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI73901
Modules/Macros
DSNB1PPG DSNB1LTS DSNB1PLK DSNB1LTX
Fix information
Fixed component name
DB2 OS/390 & Z/
Fixed component ID
5740XYR00
Applicable component levels
RC10 PSY UI73901
UP21/02/18 P F102
Fix is available
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Document Information
Modified date:
06 March 2021