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Informix - Problem description

Problem IT41355 Status: Closed

CLR SERVER CAN GET ASSERTION WHILE APPLYING LOG RECORDS PERASE AND
PTRUNCATE DUE TO BREAK FLAG SET

product:
INFORMIX SERVER / 5725A3900 / E10 - 
Problem description:
When server is configured for Continuous Log Restore and when
applying the logical log, if ALTER table log record is present
in
log record, the mreplay thread set a break flag in thread
wreplay. This break flag remains set and can cause issue at a
later time
where the following details / stack can be seen

2022-04-21 09:40:06.040  Rollforward of log record failed.
iserrno = 157
2022-04-21 09:40:06.040  Log Record: log = 18783, pos =
0x513f4f4, type = OLDRSAM:PERASE(55), trans =
3545804272341878048

09:40:06  Assert Failed: rollfwd_error
09:40:06   Who: Session(19, informix@server, 0, 0x53eb5cd8)
                Thread(75, wreplay_1, 53e7a250, 15)
                File: rsprecvr.c Line: 9279

0x000000000148078d (oninit) afstack
0x00000000014840d7 (oninit) afhandler
0x0000000001484a52 (oninit) affail_interface
0x0000000000f78d6c (oninit) rollfwd_error
0x0000000000fc8d68 (oninit) rlogm_redo
0x0000000000f77b82 (oninit) next_recvr_thr
0x00000000014707b3 (oninit) th_init_initgls
0x00000000014b7975 (oninit) startup


Other log record like PTRUNCATE can also result in assertion.
Problem Summary:
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC9.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC9.                        *
****************************************************************
Local Fix:
Solution
Workaround
****************************************************************
* USERS AFFECTED:                                              *
* Users of Informix Server prior to 14.10.xC9.                 *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* See Error Description                                        *
****************************************************************
* RECOMMENDATION:                                              *
* Upgrade to Informix Server 14.10.xC9.                        *
****************************************************************
Comment
Fixed in Informix Server 14.10.xC9.
Timestamps
Date  - problem reported    :
Date  - problem closed      :
Date  - last modified       :
28.06.2022
04.10.2022
04.10.2022
Problem solved at the following versions (IBM BugInfos)
Problem solved according to the fixlist(s) of the following version(s)
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