INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10

Linux 12.10.FC5W1 but can see the same behaviour on 12.10.FC1
and 11.70.FC1.

When running a dbexport of the database, the engine ran out of
memory and the online.log showed many new memory segments being
added.  All of the machines available memory was used so it was
not possible to complete the export.  Even doing a single unload
had mixed results.   This was originally seen on a RSS node but
the same issue can be seen on the primary.   Investigations have
now shown that this can be seen on stand-alone / normal setup.
The problem can be seen with a simple unload statement.   If the
statement completes, all of the memory is freed.  The same
select without "unload to ..." does not exhibit this excessive
memory usage.   If you run an onstat -g ses  you will see
the memory growing and the breakdown shows partn as the main
contributor.   An onstat -g afr  shows many of these
entries. ...

4f1149d8         72         partn        2339   sapimem.c:292
4f114a20         72         ID(1024)     2339   sapimem.c:292
4f114a68         72         partn        2339   sapimem.c:292
4f114ab0         72         ID(1024)     2339   sapimem.c:292
4f114af8         72         partn        2339   sapimem.c:292

****************************************************************
* USERS AFFECTED:                                              *
* informix users using dbexport or unload with smart blobs     *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Update to IBM Informix Server 12.10.xC6                      *
****************************************************************

keiner bekannt / siehe Local-Fix

Datum - Problem gemeldet    :
Datum - Problem geschlossen :
Datum - der letzten Änderung:

22.09.2015
19.01.2016
19.01.2016

12.10.xC6