SIGNAL 11 (SIGSEGV) crash in indexserver

[Former Member]

Hi HANA Experts,

A product in our company uses HANA as the data storage, I am doing the performance testing for product. When I used small table (5million rows/500 columns) it functioned well, however after I ramped the data size up to 20 million rows and 1000 columns, the HANA indexserver crashed and restarted automatically.

Sorry that this product is like a blackbox to me and I cannot tell what it does to HANA server while I testing the functions. I understand this information is important, but could you at least help me check the crashdump file and see what the possible cause? The crashdump file is in the attachment.

indexserver_eecr920bmk1.30003.crashdump.20150527-230929.113975.trc.zip

[Former Member]

Hello Adrian,

A SIGSEGV can have different causes.

Can you please upload your indexserver trace file for the period when you had the SIGSEGV. The crash dump file is really for developers and I don't think much will be gleaned from it by us.

Kind Regards,

Amerjit

[Former Member]

Thanks Amerjit,

I will attache crashdump file as well as the trace file.

Message was edited by: Adrian Liu

indexserver_eecr920bmk1.30003.000.trc.zip

indexserver_eecr920bmk1.30003.crashdump.20150604-231636.097025.trc.zip

[Former Member]

According to the crashdump file you are on HANA SP 08 Revision 82.

I have seen similar issues in a few of our systems with early revisions of HANA SP 08.

Solution was an upgrade to a more recent revision.

You might want to go to revision 85.03 or 85.04., or even to SP 09.

regards

[Former Member]

Hi Josef,

Thanks for your prompt reply, it's quite helpful.

If this is a version issue. I have no control about the server installation. I'd like to know if there is an official page link for this problem so that I can redirect it to our IT department inquiring a new version installation. Could you send it to me, if it has?

[Former Member]

Hi,

Liu: Our Non Production system currently on HANA version 85.03 has started experiencing the Signal11 Crash dumps from last 2 weeks.

I have found the SAP note: 2170989 for ABAP dumps for process terminated by Signal 10 under the folllowing link.

The Note confirms the issue is addressed in release 85.04

https://websmp230.sap-ag.de/sap(bD1lbiZjPTAwMQ==)/bc/bsp/sno/ui_entry/entry.htm?param=69765F6D6F6465...

Josef: It would be very useful to know if we have a similar note for Signal 11 error

[Former Member]

Hi Sunil,

Thanks for sharing.

How did you get avoid of the Signal 11 crash after you experienced it? Can you share me any tips/workarounds?

By the way, regarding the link (for signal 10) you put up there, I do not have proper username/password to get into, where can I get a public access?

[Former Member]

H Liu,

We are still working with SAP Support on the Signal11 errors

It is not a production system so we are not expecting a response very soon from SAP

I do not know of any way to access the notes with a public connection, you will need a SAP ID to view the knowledge base articles from SAP

Sunil