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3207741 - Duplicate dpagent services cause disconnection and session conflicts

Symptom

Various errors can be caused by a duplicate dpagent service. The duplicate instances of the service both try to communicate with HANA and interrupt each other, causing a mostly unusable state of the dpagent.

  • "invalid session ID"
  • "Adapter not active"
  • Agent is frequently disconnecting and reconnecting to HANA
  • Virtual table queries are interrupted in the middle of execution

Running processes on the agent machine include multiple instances of the dpagent and varying services:

ps -ef | grep -i dpagent

  • <user id> 25773     1  0 May19 ?        00:00:00 jsvc.exec -server -java-home /usr/sap/dataprovagent/sapjvm -cwd /usr/sap/dataprovagent/bin ....
  • <user id> 25774 25773  0 May19 ?        00:25:32 jsvc.exec -server -java-home /usr/sap/dataprovagent/sapjvm -cwd /usr/sap/dataprovagent/bin ....
    • <user id> 25794 25774  0 May19 ?        00:44:40 /usr/sap/dataprovagent/dpagent
  • <user id> 31608     1  0 18:19 pts/2    00:00:00 ./DPAgentService -I/usr/sap/dataprovagent
    • <user id> 31610 31608  0 18:19 pts/2    00:00:00 /usr/sap/dataprovagent/dpagent


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Environment

  • SAP HANA Smart Data Integration
  • dpagent.version=2.4.2.6 on Linux

Product

SAP HANA smart data integration 2.0

Keywords

KBA , HAN-DP-SDI , SAP HANA smart data integration (SDI) , Known Error

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