|
Problem IT19445
|
Status: Closed |
INSTANCE CRASH DUE TO STACK OVERFLOW DURING EXECUTION OF AN XQUERY WITH A LARGE NUMBER OF PREDICATES. |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
During SQL compilation, an xquery with a large number of
predicates being compiled may cause the DB2 instance to crash
due to a stack overflow exception. DB2 should ideally cause the
DB2 agent to return an sqlcode SQL0973N upon detecting such a
scenario.
The stack trace from such an abend will look like:
sqlngStructurePool::getStructure
sqlng_xpath_node_fun::translateXPS
sqlngProcessXPred
sqlng_xpath_node_fun::translateXPS
sqlngProcessXPred
...
* The function sqlng_xpath_node_fun::translateXPS() and
sqlngProcessXPred() are called repeatedly |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* ALL *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Db2 10.5 Fix Pack 9 or higher *
**************************************************************** |
| Local Fix: |
|
| Solution |
First fixed in Db2 10.5 Fix Pack 9 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 27.02.2017
29.09.2017
29.09.2017 |
| Problem solved at the following versions (IBM BugInfos) |
9.0.
|
| Problem solved according to the fixlist(s) of the following version(s) |
