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Informix - Problem description

Problem IT09615 Status: Closed

MANY LONGTX CHECKPOINTS BEING SEEN WITH SMALL TRANSACTIONS COVERING ONLY A
FEW LOGS WHEN THE WORK IS ROLLED BACK

product:
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10
Problem description:
ENV:  11.50.FC3 LINUX & 11.50.FC5W1 ON SOLARIS. 
 
The following is being seen when running an onstat -g ckp report 
... 
 
66025      17:36:56  LongTX     2787:0x4343018    0.6   0.6 
0.0   0      0.0   0.0   0.0   3109      3109    2920     21 
2444     17 
66026      17:37:40  LongTX     2787:0x4792018    0.4   0.3 
0.0   1      0.0   0.0   0.0   1723      1723    1516     34 
1110     25 
66027      17:43:10  CKPTINTVL  2787:0x5ff3018    1.7   1.3 
0.0   0      0.0   0.0   0.0   5741      4449    4623     14 
6267     19 
66028      17:43:58  LongTX     2787:0x64c7018    0.3   0.3 
0.0   2      0.0   0.0   0.0   1608      1608    1861     37 
1247     25 
66029      17:49:10  CKPTINTVL  2787:0x814f018    2.0   1.8 
0.0   2      0.0   0.0   0.0   6289      3478    5149     16 
7346     23 
66030      17:51:20  LongTX     2787:0x8b7c018    0.6   0.5 
0.0   0      0.0   0.0   0.0   3246      3246    3339     25 
2618     19 
66031      17:56:40  CKPTINTVL  2787:0x9ff8018    1.7   1.3 
0.0   0      0.0   0.0   0.0   5262      4141    4685     14 
5274     16 
66032      17:57:28  LongTX     2787:0xa2f8018    0.3   0.2 
0.0   0      0.0   0.0   0.0   1600      1600    1652     33 
771      15 
66033      17:59:04  LongTX     2787:0xa899018    0.3   0.3 
0.0   0      0.0   0.0   0.0   1795      1795    1899     19 
1452     15 
66034      17:59:05  LongTX     2787:0xa8b8018    0.1   0.0 
0.0   0      0.0   0.0   0.0   115       115     472      472 
32       32 
 
The checkpoint interval is 300 (5 minutes) but what is seen is 
many LongTX checkpoints between these and some are only a few 
seconds apart.
Problem Summary:
**************************************************************** 
* USERS AFFECTED:                                              * 
* Users of 12.10                                               * 
**************************************************************** 
* PROBLEM DESCRIPTION:                                         * 
* See Error Description                                        * 
**************************************************************** 
* RECOMMENDATION:                                              * 
* Update to IBM Informix Server 12.10.xC6                      * 
****************************************************************
Local Fix:
Solution
Problem Fixed In IBM Informix Server 12.10.xC6
Workaround
not known / see Local fix
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
23.06.2015
19.01.2016
19.01.2016
Problem solved at the following versions (IBM BugInfos)
12.10.xC6
Problem solved according to the fixlist(s) of the following version(s)
12.10.xC6 FixList