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Lou DeGenaro closed UIMA-5193. ------------------------------ > DUCC failover support (static) > ------------------------------ > > Key: UIMA-5193 > URL: https://issues.apache.org/jira/browse/UIMA-5193 > Project: UIMA > Issue Type: Improvement > Components: DUCC > Reporter: Lou DeGenaro > Assignee: Lou DeGenaro > Fix For: 2.2.0-Ducc > > > DUCC should provide the capability to move the head node, comprising the > broker, database, Orchestrator, PM, RM, SM, and WS, and have the agents > seamlessly switch over w/o service disruption. > --- > In this "static" failover implementation the agents are pre-configured with a > list of potential head nodes. Introduced into the ducc.properties file is > the key ducc.head.failover whose value is a comma separated list of failover > nodes: > ducc.head.failover = node1, node2, node3... > The agents at boot time are configured for broker failover to this set of > nodes. > If ducc.head.failover is not specified, then the failover functionality is > simply not supported for the installation (e.g. no seamless transition of > running agents to an alternate broker head node). > If ducc.head.failover is specified, then the node specified for ducc.head > must appear in this list. -- This message was sent by Atlassian JIRA (v6.3.4#6332)