|
Problem IT10197
|
Status: Closed |
SMALL MEMORY LEAK IN DB2 CLIENT/DRIVER IF THE ALTERNATE SERVER LIST IS ENABLED IN A DB2DSDRIVER.CFG FILE |
| product: |
DB2 FOR LUW / DB2FORLUW / A50 - DB2 |
| Problem description: |
Small amount of memory leaks in the db2 client/driver
application on each tcpip connection to DB with a
db2dsdriver.cfg file.
For example, if db2dsdriver.cfg includes the following
elements about alternate server feature, the small memory leaks
in db2 Client/Driver.
A sample of db2dsdriver.cfg
<acr>
....
<alternateserverlist>
<server name="member1" hostname="localhost"
port="31126"/>
<server name="member2" hostname="localhost"
port="31126"/>
</alternateserverlist>
<affinitylist>
<list name="list1" serverorder="member1,member2"/>
<list name="list2" serverorder="member2,member1"/>
</affinitylist>
<clientaffinitydefined>
<client name="client1" hostname="localhost"
listname="list1"/>
</clientaffinitydefined>
</acr>
Those leaked memory allocations can be confirmed by the system
memory debug feature like MALLOCDEBUG on AIX.
In the case of AIX with "export
MALLOCDEBUG=log:extended,stack_depth:12", the following stacks
will be listed on the leaked memory locations.
malloc_common_debugging
_Fancy_malloc
__nw
getIterator
getEffectiveAlternateSrvList
sqleUCinitAppData
sqleUCappConnect
sqlakConnect
sqlacall
DbConnect
main |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* DB2 CLIENT/DRIVER user *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to db2 Version 10.5 FixPack 7 or higher *
**************************************************************** |
| Local Fix: |
|
| Solution |
Problem was first fixed in Version 10.5 FixPack 7 |
| Workaround |
not known / see Local fix |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 20.07.2015
20.01.2016
20.01.2016 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
| 10.5.0.7
|
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