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Support Article

Invalid object pr_base error during startup after Pega 7 upgrade



User applications were migrated from PRPC 5.5 SP1 to Pega 7.1.8, and during the server startup, user was getting "Invalid object pr_base" errors.

Error Messages

2015-12-21 15:21:42,964 [ server.startup : 2] [ ] [ ] ( etier.engine.EngineStartup) ERROR - Reason: Database-General Problem getting connection to read database definitions 208 S0002 Invalid object name 'pr_base'.
From: (unknown)
SQL: select pzPVStream from pr_base where pxObjClass = 'Data-Admin-DB-Name'

Caused by SQL Problems.
Problem #1, SQLState S0002, Error code 208: Invalid object name 'pr_base'.
at com.pega.pegarules.engine.database.ExceptionInformation.createExceptionDueToDBFailure(
at com.pega.pegarules.engine.database.ConnectionManager.rebuildDBNameDefinitions(
at com.pega.pegarules.engine.database.ConnectionManager.<init>(
at com.pega.pegarules.engine.database.ConnectionManager.getInstance(
at com.pega.pegarules.etier.engine.EngineStartup.initEngine(
at com.pega.pegarules.etier.impl.EngineImpl._initEngine_privact(
at com.pega.pegarules.etier.impl.EngineImpl.doStartup(
at com.pega.pegarules.engine.context.EngineImpl.startEngineImpl(
at com.pega.pegarules.engine.context.EngineImpl.startEngine(
at com.pega.pegarules.engine.context.EngineImpl.startEngine(
at com.pega.pegarules.engine.database.ParUtils.initEngineForVfs(
at com.pega.pegarules.servlet.InitializeServlet.init(
Caused by: Invalid object name 'pr_base'.
... 39 more

Steps to Reproduce

Migrate from PRPC 5.5 SP1 to Pega 7.1.8.

Infrastructure setup:

  • WebSphere 7
  • SQL Server 2008 R2
  • AIX

Root Cause

There were prdbutil and prupdmgr applications deployed on the same server which were compatible with PRPC 5.5 SP1.

​ After upgrade to Pega 7.1.8, these applications were not un-installed from the server, due to which user were getting the following error trace in the log:

2015-12-21 14:45:53,119 [            torada10] [          ] [                    ] (    etier.engine.EngineStartup) INFO    -  OS: AIX, version: 6.1
2015-12-21 14:45:53,119 [            torada10] [          ] [                    ] (    etier.engine.EngineStartup) INFO    -  Architecture: ppc64
2015-12-21 14:45:53,119 [            torada10] [          ] [                    ] (    etier.engine.EngineStartup) INFO    - PegaRULES Enterprise Tier 5.5 (SP1 General Availability)
2015-12-21 14:45:53,119 [            torada10] [          ] [                    ] (    etier.engine.EngineStartup) INFO    - v55_relcand_0068: Fri May 22, 2009 4:01:34 PM EDT



Un-deploy prdbutil and prupdmgr applications of PRPC 5.5 SP1, and restart the JVM to resolve the issue.

Published January 31, 2016 - Updated October 8, 2020

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