topic Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11 in Qlik Replicate

LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Gaurav2 — Thu, 08 Aug 2024 10:01:04 GMT

Hi All,

Our LSS Source task is failing and not capturing any CDC with below error:

04022200: 2024-08-08T09:48:52 [INFRASTRUCTURE ]E: Process crashed with signal 11, backtrace: !{/opt/attunity/replicate/lib/at_base.so!4daaad,/opt/attunity/replicate/lib/at_base.so!3a34e8,/opt/attunity/replicate/lib/at_base.so!504743,/usr/lib64/libc.so.6!4eb50,/opt/attunity/replicate/lib/libareporacle.so!19094,/opt/attunity/replicate/lib/libareporacle.so!1b9a7,/opt/attunity/replicate/lib/libareporacle.so!1d46e,/opt/attunity/replicate/lib/libarepbase.so!5216e7,/opt/attunity/replicate/lib/libarepbase.so!5242ec,/opt/attunity/replicate/lib/libarepbase.so!517abb,/opt/attunity/replicate/lib/libarepbase.so!55d157,/opt/attunity/replicate/lib/libarepbase.so!56781e,/opt/attunity/replicate/lib/libarepbase.so!59dd7a,/opt/attunity/replicate/lib/libarepbase.so!7795d6,/usr/lib64/libpthread.so.0!81ca,/usr/lib64/libc.so.6!39e73,}! [1000100] (at_system_posix.c:575)

Source DB: Oracle DB 19c version (Last night July 2024 patch was applied).

Qlik Release: May 2024 (2024.5.0.144)

We have two LSS Source task on same Oracle DB, where one is running fine but other one is failing with above mentioned error.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

sureshkumar — Thu, 08 Aug 2024 10:42:31 GMT

Hello @Gaurav2

After Oracle July patch, the task gets crashed. The R&D identified the issue and provided the Test patch to resolve the issue. I would request you to please open a support ticket with us.

Regards,

Suresh

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Gaurav2 — Thu, 08 Aug 2024 10:59:17 GMT

Hi Suresh,

We have already opened the case 00299298. Waiting for the reply.

In the meantime, the issue identified by R&D team have same error "Process crashed with signal 11, backtrace: !"

Just to mention, we applied July patch on 3 Source DB's. Each DB have 2 source LSS task.

Means total Oracle Source tasks are 6.

Out of 6, only 2 are failing with the error mentioned above.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

sureshkumar — Thu, 08 Aug 2024 12:14:34 GMT

Hello @Gaurav2

Engineer already raised the issue with our R&D team on this.

Please continue to work through support case.

Regards,
Suresh

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

georgebaptista — Tue, 13 Aug 2024 16:21:42 GMT

Hi All,

Do you have any update about this post?

I got an error this week on Qlik servers with release 2023.11.0.468, tasks crashed without any error messages.
So, after many tests, I decided to upgrade the Qlik to release May 2024, and then I started to see the error "]E: Process crashed with signal 11" before the task failures.

The patch "Database Release Update : 19.24.0.0.240716" was applied in our source database before start to have this issue. I already have an opened case for my issue, waiting for the reply.

Regards,
George

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

john_wang — Tue, 13 Aug 2024 22:20:39 GMT

Hello @Gaurav2 ,

Please have a look at Qlik Replicate tasks crash due to changes to the redo log format after installing Oracle July 2024 patch on Oracle 19.

Hope this helps.

John.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Gaurav2 — Wed, 14 Aug 2024 08:52:20 GMT

Hi George,

Yes, we got the fix from Qlik Support. Basically they gave patch "areplicate-2024.5.0-357" which resolved our issue.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Gaurav2 — Wed, 14 Aug 2024 08:56:12 GMT

This is been resolved.

Cause: Redo log format changed after installing Oracle July 2024 patch.

Solution: We got the fix from Qlik Support. Basically they gave patch "areplicate-2024.5.0-357" which resolved our issue.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

john_wang — Wed, 14 Aug 2024 09:31:31 GMT

Thank you so much for your great support! @Gaurav2 @georgebaptista

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

georgebaptista — Wed, 14 Aug 2024 12:08:02 GMT

Thank you All for the information.
The issue was resolved after apply the patch "areplicate-2024.5.0-357".

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Vegy — Fri, 23 Aug 2024 11:17:11 GMT

Interestingly enough we are seeing a similar error with Db2 LUW source and Kafka target in 2024.5.0-316:

2024-08-22T16:44:53.145077664Z 00000285: 2024-08-22T16:44:53 [INFRASTRUCTURE ]E: Process crashed with signal 11, backtrace: !{/opt/attunity/replicate/lib/at_base.so!4db3bd,/opt/attunity/replicate/lib/at_base.so!3a3938,/opt/attunity/replicate/lib/at_base.so!505053,/usr/lib64/libc.so.6!3e6f0,/opt/attunity/replicate/lib/libarepcustom.so!4a8a3,/opt/attunity/replicate/lib/at_base.so!363524,/opt/attunity/replicate/lib/at_base.so!36573f,/opt/attunity/replicate/lib/at_base.so!369a6f,/opt/attunity/replicate/lib/libarepbase.so!5b61cc,/opt/attunity/replicate/lib/libarepbase.so!60f586,/opt/attunity/replicate/lib/libarepbase.so!6ae6e5,/opt/attunity/replicate/lib/libarepbase.so!59deca,/opt/attunity/replicate/lib/libarepbase.so!779786,/usr/lib64/libc.so.6!89c02,/usr/lib64/libc.so.6!10ded4,}! [1000100] (at_system_posix.c:575)

I wonder if the fix that was applied is more generic than Oracle (i.e. it was applied to an independent class? rather than the oracle endpoint class?)

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

john_wang — Fri, 23 Aug 2024 13:19:35 GMT

Hello @Vegy ,

The issue is in common base module rather than a specific endpoint, the fix covers all endpoints.

Thanks,

John.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Vegy — Fri, 23 Aug 2024 14:06:40 GMT

Are you able to share 2024.5.0-357 as the link you previously sent only had 2024.5.0-316?

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

KG_Maleka — Thu, 06 Feb 2025 10:50:40 GMT

I have the same error but i am running V2024.11.0.273 Qlik replicate (Linux rhel8), Oracle Client version: 19.10.0.0.0, please advise

Kagiso

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Santoshj7077 — Tue, 08 Apr 2025 08:02:48 GMT

We have upgraded replicate ver 2024.5.0.563 on system. The same issue has been resolved in the Replicate 2024.5.0.563 patch please help on this.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

kamal0475 — Wed, 07 Jan 2026 17:35:12 GMT

Hello Team, we are on 2025.5.0.454 and our Oracle DBA confirmed we have supplemental logging enabled on all columns for the tables we replicate. We are getting the task crash error. Is there a resolution for this issue:

Error: 03708745: 2026-01-07T16:40:08:981317 [SOURCE_CAPTURE ]V: Supplemental logged column not found (oradcdc_parse.c:3538)
03708745: 2026-01-07T16:40:08:981319 [SOURCE_CAPTURE ]V: BI col 14133 [0], data:NULL (oradcdc_parse.c:340)
03708745: 2026-01-07T16:40:08:981320 [SOURCE_CAPTURE ]V: Supplemental logged column not found (oradcdc_parse.c:3538)
03708745: 2026-01-07T16:40:08:981322 [SOURCE_CAPTURE ]V: BI col 17200 [0], data:NULL (oradcdc_parse.c:340)
END OF TRACE ON DEMAND
03708745: 2026-01-07T16:40:08:998100 [INFRASTRUCTURE ]E: Process crashed with signal 11, backtrace: !{/apps/software/attunity/replicate/lib/at_base.so!4ee0ad,/apps/software/attunity/replicate/lib/at_base.so!3b4638,/apps/software/attunity/replicate/lib/at_base.so!517d23,/usr/lib64/libc.so.6!4e630,/apps/software/attunity/replicate/lib/libareporacle.so!360c9,/apps/software/attunity/replicate/lib/libareporacle.so!42ec0,/apps/software/attunity/replicate/lib/libareporacle.so!45824,/apps/software/attunity/replicate/lib/libareporacle.so!49878,/apps/software/attunity/replicate/lib/libareporacle.so!6cca9,/apps/software/attunity/replicate/lib/libareporacle.so!1e801,/apps/software/attunity/replicate/lib/libareporacle.so!31968,/apps/software/attunity/replicate/lib/libareporacle.so!84a6f,/apps/software/attunity/replicate/lib/libareporacle.so!a04de,/apps/software/attunity/replicate/lib/libarepbase.so!489497,/apps/software/attunity/replicate/lib/libarepbase.so!589253,/apps/software/attunity/replicate/lib/libarepbase.so!594a4e,/apps/software/attunity/replicate/lib/libarepbase.so!5cd72a,/apps/software/attunity/replicate/lib/libarepbase.so!7cb7f6,/usr/lib64/libpthread.so.0!81ca,/usr/lib64/libc.so.6!39953,}! [1000100] (at_system_posix.c:575)
03708745: 2026-01-07T16:40:09:31189 [INFRASTRUCTURE ]V: sig_handler:569: Failed (at_system_posix.c:587)

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Dana_Baldwin — Wed, 07 Jan 2026 18:02:19 GMT

Hi @kamal0475

Although the error is similar to the original one on this thread, it most likely has a different root cause as you are using a later version of Qlik Replicate.

What is the full version number of Oracle on the source? Select * from V$Version;

What is the full version number of the Oracle client on the Replicate server? Is it the full client or the instant client?

We may need for you to open a support case to troubleshoot this as we have no way of escalating this to our internal support team from a Community post if needed. Please provide the items listed here on the case:

Troubleshooting Replicate Crashes

Thanks,

Dana

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

kamal0475 — Wed, 07 Jan 2026 18:50:08 GMT

Hello Dana, we have a ticket open, but on the side I am trying to get some help. Below are the version details:

Oracle DB version: 19.28.0.0.0

Oracle client version we installed on the Qlik replicate server is: 19.3.0.0.0.

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

Dana_Baldwin — Wed, 07 Jan 2026 22:55:23 GMT

Hi @kamal0475

I can find no known issues running Qlik Replicate version 2025.5.0.454 and Oracle 19.28.

Please follow up with us via the support case you have open to avoid duplication of effort. If you are not satisfied with the service you are receiving you can escalate the case following the guidance here:

How to escalate a support case - Qlik Community - 1713475

Thanks,

Dana

Re: LSS Source task failing with [INFRASTRUCTURE ]E: Process crashed with signal 11

kamal0475 — Thu, 08 Jan 2026 13:52:55 GMT

Sure Dana. I will follow up with the support. Thank you for your quick response.