Question Re: SUM DMO Cannot create named pipe in Technology Q&A

SUM DMO Cannot create named pipe

babuilyas — Wed, 24 Jun 2020 09:29:33 GMT

It can be as simple as 123 but I'm on this error since 2 days :(. I hope someone can help me get out of this.

I setup permission on the folder to 777 but it still not able to continue.

Re: SUM DMO Cannot create named pipe

babuilyas — Wed, 24 Jun 2020 11:19:29 GMT

Hi roland.kramer, can you help me with this error in DMO.

Re: SUM DMO Cannot create named pipe

RolandKramer — Wed, 24 Jun 2020 11:57:34 GMT

Hi,

please use the latest Version of the SUM 2.0 SP07 Patch which is PL09 or a higher Version.
Note 2790229 – Central Note – Software Update Manager 2.0 SP07 [lmt_023]

Note 2489550 -EU_CLONE_MIG_UT_RUN phase fails with "write_to_pipe" error during upgrade

Note 2240098 - Wrongdata / missing data after unclustering tables

The Problem is already fixed since a while. If you are patching within the same SP the PL level, simply stop the SAPup and overwrite the existing binaries. It will not overwrite your own files from the DMO run.

If you want to use the latest Version of the SUM/DMO like SP08 PL01 or higher, then I would recommend to start over again. So in your case use the latest PL Version for SUM 2.0 SP07

Nevertheless check the Document - SAP First Guidance – Using the new DMO to migrate to BW on HANA for Keywords like pipe or cluster

Best Regards Roland

Re: SUM DMO Cannot create named pipe

babuilyas — Wed, 24 Jun 2020 12:41:27 GMT

Thanks for swift response. I think I should follow recommendation. Heading to download latest SP08.

I already checked the doc for your blog post and searched for pipe and find nothing relevant for my case.

Re: SUM DMO Cannot create named pipe

babuilyas — Wed, 24 Jun 2020 13:08:34 GMT

I will close this with feedback as pass through the error with SP08 PL1.

Re: SUM DMO Cannot create named pipe

RolandKramer — Wed, 24 Jun 2020 13:58:09 GMT

Ok, thanks. Please mark the Solution as "correct answer" ...

Re: SUM DMO Cannot create named pipe

Former Member — Wed, 24 Jun 2020 14:49:19 GMT

It would have been interesting to determine the root cause of the named pipe error, typically this error can occur when the SUM is extracted as root rather than <SID>adm. Is it possible the SUM 2.0 SP 7 (PL2) was extracted as root ?

Re: SUM DMO Cannot create named pipe

babuilyas — Thu, 25 Jun 2020 03:17:56 GMT

I started as root.

./SUMSTART confighostagent

But SLUI was logged on with <sid>adm,

Re: SUM DMO Cannot create named pipe

babuilyas — Thu, 25 Jun 2020 03:22:49 GMT

SUM 2.0 SP08 PL1 process in the system right now. I followed same start command and SLUI login, so probably i didn't notice this before and may be would the cause. Anyways. lets how this react in preprocessing phase.

Re: SUM DMO Cannot create named pipe

babuilyas — Thu, 25 Jun 2020 15:36:09 GMT

Again at same stage. I think there is something else which causes this. This may be the ram cap. Can I schedule to run one job at a time. I can provide access to the SUM process if you have a chance to look into.

Re: SUM DMO Cannot create named pipe

RolandKramer — Thu, 25 Jun 2020 15:47:43 GMT

Ok,

can you please share the detail about source and target configuration:

- OS
- DB, UC or NUC, Version
- SAP Application from - to
- SAP Kernel Version from - to

there are always two SAPup processes running, don't worry

best regards Roland

Re: SUM DMO Cannot create named pipe

babuilyas — Thu, 25 Jun 2020 17:24:53 GMT

Thanks for swift reply. It is UC.

System and Host Information: ============================ -

SID: R3P - Host: erpehp6 - Instance No.: 00 - Shadow Instance No.: 03 - OS Type: Linux X86_64 - OS Version: 2.26 - Kernel Path: /usr/sap/R3P/DVEBMGS00/exe - SUM Directory Path: /usr/sap/R3P/SUM/abap - Start Release: 731 - Target Release: 754

Database Information: ===================== -

DB Type: ora - DB Version: 19.7.0.0.0 - DB Host: erpehp6 - DB SID: R3P - Target DB Type: HDB - Target DB Version: 2.00.047.00.1586595995 - Target DB Host: s41909hdb - Target DB SID: HDB

Re: SUM DMO Cannot create named pipe

babuilyas — Fri, 26 Jun 2020 04:41:47 GMT

Hi david.gabel, i believe port forwarding to my sum run can help find root cause.

https://sum.hopto.org:6420/lmsl/sumabap/R3P/slui/

The underline system is very fresh without any data.

Please DM if possible, I can't from here.

Re: SUM DMO Cannot create named pipe

RolandKramer — Fri, 26 Jun 2020 07:48:42 GMT

Hi muhammad.ilyas,

Is the Source System on Oracle based on UC or NUC?
It seems there are some inconsistencies ...

Nevertheless the findings in the Blog - optimizing system downtime is timeless … should be adapted to the latest version.

Best Regards Roland

Re: SUM DMO Cannot create named pipe

babuilyas — Fri, 26 Jun 2020 09:28:50 GMT

It is confirmed Unicode and I can see it in System > Status. I confirmed it via R3tran -version as well.

Re: SUM DMO Cannot create named pipe

RolandKramer — Fri, 26 Jun 2020 09:40:29 GMT

it is not relevant what the SAP Kernel says.
btw: the SAP Kernel 7.22 you are using is almost four years old! are Y kidding me?
PLEASE update the source binaries as well and check the result in tx. SPUMG in the source system

Best Regards Roland

Re: SUM DMO Cannot create named pipe

babuilyas — Fri, 26 Jun 2020 09:51:20 GMT

Hehe. no way.

I'm following this scenario in test.

EHP6 (linora) to S4.

SAP Kernel is as per PAM. You can quickly find it below:

Re: SUM DMO Cannot create named pipe

RolandKramer — Fri, 26 Jun 2020 09:54:44 GMT

Nevertheless, the SAP Kernel you are using is four years old, your SUM was outdated. How should this work? ALWAYS update you binaries first, despite what you are doing ...

Re: SUM DMO Cannot create named pipe

babuilyas — Fri, 26 Jun 2020 10:09:01 GMT

I doubt, please confirm, BASIS 731 supports 754 Kernel?

Re: SUM DMO Cannot create named pipe

babuilyas — Fri, 26 Jun 2020 10:31:52 GMT

Can you explain it in little detail of binaries update?. a bit confused with this error and asking myself why I need to update source system kernel binaries? Correct me if I'm wrong, SUM copies source kernel to SUM/abap/exe and then apply latest kernel for source system as it asked during extraction. Should I confirm SUM/abap/exe got the right binaries or not?!