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Problem IT33797
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Status: Closed |
MEMORY LEAK IN SQALLOC.C:1949 WHEN RUNNING JAVA PROG PERFORMING INSERTS & UPDATES WHERE PLACEHOLDERS MATCH THE COMPOSITE INDEX
|
| product: |
INFORMIX SERVER / 5725A3900 / C10 - IDS 12.10 |
| Problem description: |
Situation: long running sessions which perform inserts and
updates.
If the where clause uses the columns of the composite index,
then a memory leak is observed.
This can be seen if the engine is started with "RALLOC_MODE
POOL" and the program paused every 1000 iterations â ¦
onstat -g mem | grep ^31
31.H.sdrebi V 464d3040 4096 640
3 1
31*O0 V 463c9040 4096 768
1 1
31.H.ext V 45e30040 8192 864
23 1
31.H.ext V 46424040 16384 3392
42 1
31.H.sd V 45f95040 16384 3640
45 2
31.H.sd V 464e8040 274432 3280
2076 2
31 V 46459040 77824 4120
107 3
onstat -g afr 0x464e8040 | grep sqalloc.c:1949 | wc -l -> 2014
onstat -g mem | grep ^31
31.H.sdrebi V 46451040 4096 640
3 1
31*O0 V 463c9040 4096 768
1 1
31.H.ext V 45e30040 8192 864
23 1
31.H.ext V 467f9040 16384 3392
42 1
31.H.sd V 45f95040 16384 3640
45 2
31.H.sd V 464e8040 2834432 3280
22076 2
31 V 46459040 77824 4120
107 3
onstat -g afr 0x464e8040 | grep sqalloc.c:1949 | wc -l -> 22014
onstat -g mem | grep ^31
31.H.sdrebi V 46690040 4096 640
3 1
31*O0 V 463c9040 4096 768
1 1
31.H.ext V 45e30040 8192 864
23 1
31.H.ext V 46a06040 16384 3392
42 1
31.H.sd V 45f95040 16384 3640
45 2
31.H.sd V 464e8040 5394432 3280
42076 2
31 V 46459040 77824 4120
107 3
onstat -g afr 0x464e8040 | grep sqalloc.c:1949 | wc -l -> 42014
If the index is dropped, then the leak is not seen.
The memory is returned to the server if the session exits. |
| Problem Summary: |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC15 and 14.10.xC5. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Informix Server 12.10.xC15 (when available) or *
* 14.10.xC5. *
**************************************************************** |
| Local Fix: |
|
| Solution |
|
| Workaround |
****************************************************************
* USERS AFFECTED: *
* Users of Informix Server prior to 12.10.xC15 and 14.10.xC5. *
****************************************************************
* PROBLEM DESCRIPTION: *
* See Error Description *
****************************************************************
* RECOMMENDATION: *
* Upgrade to Informix Server 12.10.xC15 (when available) or *
* 14.10.xC5. *
**************************************************************** |
| Comment |
Fixed in Informix Server 12.10.xC15 and 14.10.xC5. |
| Timestamps |
Date - problem reported :
Date - problem closed :
Date - last modified :
| 05.08.2020
22.01.2021
22.01.2021 |
| Problem solved at the following versions (IBM BugInfos) |
|
| Problem solved according to the fixlist(s) of the following version(s) |
