Impact of IP address change in EEM Failover environment

book

Article ID: 37738

calendar_today

Updated On:

Products

EMBEDDED ENTITLEMENTS MGR CA Workload Automation AE - Business Agents (AutoSys) CA Workload Automation AE - Scheduler (AutoSys) CA Workload Automation Agent CA Spectrum CA Process Automation Base

Issue/Introduction

In an EEM failover environment, if the IP address of one of the EEM Server has been modified and then the updates / modifications are not being synchronized in the EEM failover configuration. The following error message appears in the itechpoz_alarm as well as in the itechpoz_warn log files in the CA Directory log file –

* DSA_E2735 Multiwrite-DISP: Unable to synchronize with peer 'itechpoz-Failover-hostname’

* DSA_I1240 DSA shutting down

Cause

The cause for the updates from any of the EEM server to the failover EEM servers would fail after a change in the IP address, if the EEM related services have not been restarted, especially the CA Directory Server. This is because when a DSA starts up, it caches in the IP address associated with hostname.

Environment

EEM 8.4 or higher with CA Directory as the internal user store.

Resolution

Restart of CA Directory services in all the EEM servers that are part of the failover will fix this problem. During the startup the DSA would rebuild the Multi Write Cache with new IP to hostname mapping.