In HAC DE, the 'changerole' cli command is unsuccessful

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Article ID: 3977

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Updated On:

Products

DSERIES- SERVER CA Workload Automation DE - System Agent (dSeries)

Issue/Introduction

In HAC DE, the 'changerole' cli command is unsuccessful 

Cause

The 'changerole' command resulted in the error: "Peer server cannot be found via RMI. Cannot changeroles"

Environment

Release: DSWAHA01300-12-Workload Automation DE-High Availability
Component:

Resolution

As read from the error, the cause is that DE HAC peer server was not reachable via RMI (Remote Method Invocation) call.

In order to poll each other, DE HAC servers use the RMI, and so their requests should be allowed to move through the networking media; check if possible devices like firewalls, gateways, routers do not block RMI.

NB. It is also a good practice to check if:

- The peer server is up and running

- The system's clocks on DE servers hosts are synchronized. Check the tracelog files of the Primary server for the warning message like this:

Handshake ... has a significant time/clock difference ... Please synchronize the clocks of the two servers.