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2573942 - Supported Workflows for Seamless Tomcat Cluster session failover

Symptom

  • After implementing Tomcat Clustering using the below three links/KBAs, Tomcat cluster session failover is working for some workflows, but not for others:
    2088195 - BI 4.1 - Error: "Logon denied: Your session is not valid" in BI Launch Pad using Tomcat cluster failover
    http://wiki.scn.sap.com/wiki/display/BOBJ/Setting+up+the+Application+Server
    http://wiki.scn.sap.com/wiki/display/BOBJ/Setting+up+Apache+2.4
  • It is required to know which workflows are supported by Tomcat Clustering
  • Errors you may encounter after Tomcat crash when seamless failover is expected to happen:

    In Mobile:
    Your session has expired. Please log-in again(MOB00931)

    INFO: HTMLManager: sessions: Session action 'null' for web application '/MobileBIService'
    com.sap.customvalve.CustomReplicationValve invoke
    SEVERE: org.apache.catalina.core.ValveBase/1.0: Replication Operation Unsuccessful.
    java.lang.IllegalStateException: Cannot create a session after the response has been committed
    TRUNCATED FOR READABILITY

    In Web Intelligence (Webi) HTML Viewer
    Error: "Invalid session. Please close your browser and log on again. (WIH 00013)

    java.io.NotSerializableException: com.sap.webi.client.toolkit.SessionContext
    at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1184)
    at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1548)
    at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1509)
    TRUNCATED FOR READABILITY 


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Environment

  • SAP BusinessObjects Business Intelligence Platform 4.x (BI 4.0 / 4.1 / 4.2)
  • Windows
  • Linux / Unix
  • Tomcat 

Product

SAP BusinessObjects Business Intelligence platform 4.0 ; SAP BusinessObjects Business Intelligence platform 4.1 ; SAP BusinessObjects Business Intelligence platform 4.2

Keywords

KBA , BI-BIP-DEP , SBOP Web Application Deployment, Wdeploy , Problem

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