Rupert Westenthaler created STANBOL-1440:
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Summary: Support SolrCore swap like feature
Key: STANBOL-1440
URL: https://issues.apache.org/jira/browse/STANBOL-1440
Project: Stanbol
Issue Type: Improvement
Components: Commons, Enhancement Engines
Affects Versions: 0.12.0
Reporter: Rupert Westenthaler
Assignee: Rupert Westenthaler
Priority: Minor
Fix For: 1.0.0, 0.12.1
The SolrServerAdapter warps a Solr CoreContainer and makes it and its cores
available as OSGI services so that they can be used with the whiteboard pattern.
Currently when one updates a SolrCore (e.g. registering a core with the same
name but a different core directory) with the SolrServerAdapter the old core is
removed first and the new one only added later. This means that while on the
Solr side both cores could be used simultaneously it is not possible on the
OSGI side because of the order of the unregistration and registration.
This issue is about changing this so that on a SolrCore registration of an
existing core the workflow is as follows
# update the SolrCore on the CoreContainer
# register the new SolrCore as OSGI service
# unregister the old SolrCore as OSGI service
This issue will also update the FstLinkingEngineComponent so that the
initialization can make used of the new Feature. This will avoid any
EntityLinking service interruption of the SolrCore used for linking is updated.
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