DB2 - Problem description
Problem IT02847 | Status: Closed |
APPL_ID VALUE IN CONNMEMUSE_ EVENT MONITOR TABLE HAS EXTRA GARBAGE CHARACTER AT END ON LITTLE-ENDIAN PLATFORMS (LINUX) | |
product: | |
DB2 FOR LUW / DB2FORLUW / 970 - DB2 | |
Problem description: | |
On little-endian platforms (such as linux), the APPL_ID column value of the CONNMEMUSE_<evmon> event monitor table will have an 1 extra garbage character at the end. This garbage character will usually not be visible if you look at the APPL_ID column values, but can be observed if you look at the length of the APPL_ID column values. For example, ---if you create an arbitrary event monitor that includes the CONNMEMUSE: create event monitor MYEVMON1 for connections write to table CONNHEADER ( table SP.CONNHEADER_CONN_TO_TABLE in UTIL_TSP001 pctdeactivate 100 ), CONN ( table SP.CONN_CONN_TO_TABLE in UTIL_TSP001 pctdeactivate 100 ), CONTROL ( table SP.CONTROL_CONN_TO_TABLE in UTIL_TSP001 pctdeactivate 100 ), CONNMEMUSE ( table SP.CONNMEMUSE_CONN_TO_TABLE in UTIL_TSP001 pctdeactivate 100 ) autostart ; SET EVENT MONITOR CONN_TO_TABLE STATE 1; ---and populate the various tables using some arbitrary workload: CREATE TABLE GARABGE1 (C1 INT); CREATE TABLE GARBAGE2 (C1 INT); DROP TABLE GARBAGE1; DROP TABLE GARBAGE2; FLUSH EVENT MONITOR MYEVMON1; --- If you try to join the APPL_ID value from CONNMEMUSE_ to the control table CONN_, this command incorrectly does not find any matches: select * from SP.CONNMEMUSE_MYEVMON1 where APPL_ID in (select APPL_ID from SP.CONN_MYEVMON1) ; --- However, if you try the same join, but removing the last character from the APPL_ID value from CONNMEMUSE, this command successfully returns matches: select * from SP.CONNMEMUSE_MYEVMON1 where substr(APPL_ID,1, length(APPL_ID)-1) in (select APPL_ID from SP.CONN_MYEVMON1); | |
Problem Summary: | |
**************************************************************** * USERS AFFECTED: * * All * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Upgrade to inclusive fixpack. * **************************************************************** | |
Local Fix: | |
As a temporary work-around, you can subtract 1-byte from the APPL_ID, like so: select * from SP.CONNMEMUSE_MYEVMON1 where substr(APPL_ID,1, length(APPL_ID)-1) in (select APPL_ID from SP.CONN_MYEVMON1); This work-around will break after the APAR fix has been applied. | |
Solution | |
Workaround | |
not known / see Local fix | |
Timestamps | |
Date - problem reported : Date - problem closed : Date - last modified : | 29.06.2014 10.11.2014 10.11.2014 |
Problem solved at the following versions (IBM BugInfos) | |
Problem solved according to the fixlist(s) of the following version(s) | |
9.7.0.10 |