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Problem IT21820
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Status: Closed |
LATCHES SUCH AS SQLO_LT_SQLP_DBCB__READBUFSEM ARE NOT BEING REPORTED IN MON_GET_EXTENDED_LATCH_WAIT
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| product: |
DB2 FOR LUW / DB2FORLUW / B10 - DB2 |
| Problem description: |
The MON_GET_EXTENDED_LATCH_WAIT table function isn't reporting
all latches that have been involved in extended latch waits.
For example, the following stack shows an EDU involved in a
wait:
sqloXlatchConflict
sqloxltc_track
sqlpgrlg
sqlpReadLogForCC
sqldGetCurrentlyCommitted
sqliLockUncond
sqldRowFetch
sqldRowFetch
sqldRowFetch
sqlritaSimplePerm
sqlritaSimplePerm
sqlritaSimplePerm
sqlriSectInvoke
sqlrr_process_fetch_request
sqlrr_open
sqljsParseRdbAccessed
sqljsSqlam
sqljsSqlam
sqljsSqlam
sqljsDriveRequests
sqljsDrdaAsInnerDriver
RunEDU
RunEDU
EDUDriver
sqloEDUEntry
Waiting on latch type: (SQLO_LT_SQLP_DBCB__ReadBufSem) -
Address: (0xa00030000199140), Line: 1553, File: sqlpgrlg.C
However the ReadBufSem latch isn't reported by
MON_GET_EXTENDED_LATCH_WAIT. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* All users below v11.1 Fixpack 2 *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to fixpack 2 in v11 to overcome the problem. *
**************************************************************** |
| Local Fix: |
Use "db2pd -latches" to see current latch information. |
| Solution |
|
| Workaround |
not known / see Local fix |
| BUG-Tracking |
forerunner : IT17841
follow-up : |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 04.08.2017
12.10.2017
12.10.2017 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
