Monthly Archives: January 2013

Achieving High-Availability with WSO2 Load Balancer and Keepalived

Introduction A system is considered to be highly-available, if it continues to serve requests even on an event of failure. On the service level, the high-availability can be achieved by having a cluster of service nodes and fronting the system with a load balancer with fail-over capability. So if one of … Continue reading

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WSO2 ESB : How to fix “Failed to start new registry transaction” error.

When configuring WSO2 ESB with its embedded registry pointing to an Oracle RAC instance, sometimes you may run into connection issues with the RAC instance, with the following error trace. ERROR {org.wso2.carbon.registry.core.dataaccess.TransactionManager} – Failed to start new registry transaction. {org.wso2.carbon.registry.core.dataaccess.TransactionManager} … Continue reading

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