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Datahub loses connection

Hi experts,

We use datahub 5.6.0.1. We recently migrated to the hana database and wanted to perform some loading tests. 100.000 idocs (100 per 5 minutes) were sent to 2 datahub instances. The sending was started on the weekend and stopped on Monday as I saw the errors in logs. On the first env only one error was found while on the second one very many imports failed with the errors(the same as for the 1st and other ones) - the error of the first env and the examples of the second are mentioned in the attached logs. They all are connected with the connection to the database. I thought the issue should be in the database and as I have no access to it I asked to provide me some db monitoring metrics. The answer was that according to the sap solution manager metrics the datahub was able to get the connection during the whole weekend. They also assumed that the issue can come from their well-known weekend dns outages.

Have anybody seen errors like I have in the logs? Is there a possibility that the issue comes from the datahub application? I haven't seen such errors before and currently when there is no load on the systems everything works fine.

Thanks. env 1 & 2 same errors / env 2 error log

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  • I have not see the DB exception.
    I did encounter Caused by: org.springframework.beans.factory.NoSuchBeanDefinitionException: No bean named 'MATMAS02' is defined previously. When <int:mapping value="MATMAS02" channel="MATMAS" /> was misssing in the sapidocintegration spring file.

  • Hi Robin, Thanks for a response. No, the MATMAS02 is in place, some of the idocs were processed successfully and usually they are processed successfully. For me it seemed strange that this bean was lost in runtime and I payed more attention to the CannotCreateTransactionException.

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