Client Failover Utility

Version 1 by Reneta Popova
on Apr 30, 2014 11:17.

compared with
Current by Dimitar Manov
on Jul 17, 2014 17:38.

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h1. Introduction

The Client Failover Utility is designed to provide support for a failover scenario in which there is no access to the primary master node of the OWLIM GraphDB Replication Cluster, such as connectivity issues. In this case, java exceptions are thrown, the failed master is flagged, and the Client Failover Utility retries accessing the next available master node.

At regular intervals (currently 15 seconds), the repository instance checks each of the failed master nodes and when it finds a reachable and active master, it returns it back for subsequent use.