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Informix - Problem description

Problem IC61740 Status: Closed

MEMORY LEAK IN ER CDRGTX# POOL WHEN LOADING OR DELETING DATA ON A TABLE
WITH A LONG ROW SIZE TABLE.

product:
IBM IDS ENTRP E / 5724L2304 / B15 - IDS 11.50
Problem description:
A memory leak can be seen in the CDRGtx# memory pool (where # 
represents a number), when inserting or deleting data on a 
replicated table with a long row length. 
 
The online.log may show the dynamic allocation of shared memory 
as a result. For example: 
 
10:32:47  Memory sizes:resident:116736 KB, virtual:150528 KB, no 
SHMTOTAL limit 
10:32:50  Requested shared memory segment size rounded from 
50000KB to 50176KB 
10:32:50  Dynamically allocated new virtual shared memory 
segment (size 50176KB) 
10:32:50  Memory sizes:resident:116736 KB, virtual:200704 KB, no 
SHMTOTAL limit 
 
Running the following command will show the CDRGTx pool 
increasing in size over time: 
 
% onstat -g mem -r 1 | grep CDRGtx 
 
CDRGtx0      V     113880040        5574656          346248 
     171 171 
CDRGtx0      V     113880040        17207296        1051480 
   750 526 
.. 
.. 
CDRGtx0      V     113880040        136577024       108918800 
28030 54144
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* All users upgrading from IDS 10 to 11.50                     * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* Enterprise Replication might use excessive memory in grouper * 
* sub-component while processing large transactions if the     * 
* transaction has data for variable length columns like        * 
* lvarchar.                                                    * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Upgrade to IDS 11.50xC6 or above                             * 
****************************************************************
Local Fix:


Solution


Problem first fixed in IDS 11.50xC5W2.


Workaround


not known / see Local fix


Timestamps


Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :

26.06.2009
03.09.2009
03.09.2009


Problem solved at the following versions (IBM BugInfos)


11.50.xC5W2,
11.50.xC6



Problem solved according to the fixlist(s) of the following version(s)


11.50.xC5

FixList



11.50.xC5.W3

FixList



11.50.xC6

FixList