|
Problem IC65073
|
Status: Closed |
SET WRITE SUSPEND AND RESUME CAN DEADLOCK WITH A BLOCKED TABLE EVENT MONITOR |
| product: |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 |
| Problem description: |
SET WRITE RESUME will hang forever in the following stack,
waiting on dblatch:
sqloXlatchConflict - 0x70
sqlbSetWriteResume__FP12SQLB_GLOBALSbP5sqlcaiPUs + 0x920
sqlbSetWriteAction__FP12SQLB_GLOBALSClCbP5sqlcaCiPUs + 0xDC
sqlbSetPoolChange__FP5sqldaT1P5sqlca + 0x460
sqlerKnownProcedure__FiPcPiP5sqldaT4P13sqlerFmpTable + 0x3EC
sqlerCallDL__FP14db2UCinterfaceP9UCstpInfo + 0x64C
sqljs_ddm_excsqlstt__FP14db2UCinterfaceP13sqljDDMObject + 0xA8
...
The dblatch is held by an agent doing a flush event monitor,
waiting on em_list_latch:
sqloXlatchConflict - 0x70
sqloXlatchConflict@glue15D + 0x74
flush_monitor__13sqm_evmon_mgrFPC9sqlm_empdCUc + 0x474
flush_event_monitor__13sqm_evmon_mgrFPC9sqlm_empdCUi + 0x130
sqlrlfem__FP8sqlrr_cbPUcUsUc + 0x260
sqlnq_flush_evmon_stmt__FPP8stknode_i10actiontypePU + 0x168
...
The em_list_latch is held by an agent trying to write an event
to a buffer. The event monitor itself is not able to write out a
full buffer to the database, because of the write suspend state. |
| Problem Summary: |
USERS AFFECTED: All
PROBLEM DESCRIPTION:
See ERROR DESCRIPTION
PROBLEM SUMMARY:
See ERROR DESCRIPTION |
| Local Fix: |
* Modify table event monitor from BLOCKED to NONBLOCKED
* Deactivate table event monitor before a WRITE SUSPEND
* Use file event monitor instead of table event monitor |
| available fix packs: |
DB2 Version 9.7 Fix Pack 2 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 3a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 4 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 5 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 6 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 7 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9a for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 8 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 9 for Linux, UNIX, and Windows
DB2 Version 9.7 Fix Pack 10 for Linux, UNIX, and Windows
|
| Solution |
Problem was first fixed in Version 9.7 Fix Pack 2 |
| Workaround |
See LOCAL FIX. |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 10.12.2009
08.06.2010
08.06.2010 |
| Problem solved at the following versions (IBM BugInfos) |
9.7.FP2
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 9.7.0.2
|
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