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https://issues.apache.org/jira/browse/STANBOL-117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13011108#comment-13011108
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Rupert Westenthaler commented on STANBOL-117:
---------------------------------------------
#1085255 solves the Issue described above.
In addition it solves an other problem that has caused sometimes the
initialization of the Entityhub. This typically happened only if the /sling
folder was not already present before the start (because that the
initialization of the SolrYard takes longer).
Will wait for the next hudson build and have a look at the log files before
marking this as Resolved
best Rupert
> Initialization of the Entityhub sometimes fails during integration tests
> ------------------------------------------------------------------------
>
> Key: STANBOL-117
> URL: https://issues.apache.org/jira/browse/STANBOL-117
> Project: Stanbol
> Issue Type: Bug
> Environment: Integration tests on hudson
> Reporter: Rupert Westenthaler
> Assignee: Rupert Westenthaler
>
> Sometimes the initialization of the Entityhub based on the default
> configuration provided by the full launcher of the Stanbol Enhancer fails.
> The reason for that is that the EmbeddedSolrServerProvider is not available
> at the time when the SolrYard instances do request an SolrServer with the
> type EMBEDDED.
> However note that the EmbeddedSolrServerProvider is already registered before
> but get the unregistered shortly before the SolerServer instance is activated.
> The complete log is available at:
> https://builds.apache.org/hudson/job/stanbol-trunk-1.6/org.apache.stanbol$org.apache.stanbol.enhancer.integration-tests/ws/sling/logs/error.log
> Here the interesting sections of the log.
> (1) Time: 02:36:42.670
> Bot the DefaultSolrServerProvider and the EmbeddedSolrServerProvider get
> registered with the EmbeddedSolrServerProvider
> 21.03.2011 02:36:42.668 *INFO* [SCR Component Actor] org.apache.felix.scr
> Running task: Enable Component:
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager (6)
> 21.03.2011 02:36:42.669 *INFO* [SCR Component Actor]
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager add
> SolrProvider
> org.apache.stanbol.entityhub.yard.solr.embedded.EmbeddedSolrPorovider@6f947b
> types [EMBEDDED]
> 21.03.2011 02:36:42.670 *INFO* [SCR Component Actor]
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager add
> SolrProvider
> org.apache.stanbol.entityhub.yard.solr.impl.DefaultSolrServerProvider@15ad1da
> types [HTTP, STREAMING, LOAD_BALANCE]
> (2) Time: 02:36:42.945
> SolrYard (configured to use an EmbeddedSolrServer) activates
> 21.03.2011 02:36:42.945 *INFO* [Configuration Updater]
> org.apache.stanbol.entityhub.yard.solr.impl.SolrYard in class
> org.apache.stanbol.entityhub.yard.solr.impl.SolrYard activate with context
> org.apache.felix.scr.impl.manager.ComponentContextImpl@157211f
> (3) Time: 21.03.2011 02:36:42.945
> In the same millisecond the EmbeddedSolrServerProvider gets unregistered form
> the SolrServerProviderManager
> 21.03.2011 02:36:42.945 *INFO* [SCR Component Actor]
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager
> remove SolrProvider
> org.apache.stanbol.entityhub.yard.solr.embedded.EmbeddedSolrPorovider@6f947b
> types [EMBEDDED]
> 21.03.2011 02:36:42.945 *INFO* [SCR Component Actor]
> org.apache.stanbol.entityhub.yard.solr Service
> [org.apache.stanbol.entityhub.yard.solr.embedded.EmbeddedSolrPorovider,40]
> ServiceEvent UNREGISTERING
> (4) Time 02:36:42.946
> 1ms later the SolrServerProviderManager throws an Exception because no
> SolrServerProvider for the type EMBEDDED is available
> 21.03.2011 02:36:42.946 *ERROR* [Configuration Updater]
> org.apache.stanbol.entityhub.yard.solr
> [org.apache.stanbol.entityhub.yard.solr.impl.SolrYard] The activate method
> has thrown an exception (java.lang.IllegalArgumentException: No Provider for
> type EMBEDDED available) java.lang.IllegalArgumentException: No Provider for
> type EMBEDDED available
> at
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager.getSolrServer(SolrServerProviderManager.java:98)
> ...
> (5) 02:36:42.946
> Now the second configured SolrYard activates and fails because there is still
> no SolrServerProvider for the type EMBEDDED
> 21.03.2011 02:36:42.946 *INFO* [Configuration Updater]
> org.apache.stanbol.entityhub.yard.solr.impl.SolrYard in class
> org.apache.stanbol.entityhub.yard.solr.impl.SolrYard activate with context
> org.apache.felix.scr.impl.manager.ComponentContextImpl@82c23d
> 21.03.2011 02:36:42.947 *ERROR* [Configuration Updater]
> org.apache.stanbol.entityhub.yard.solr
> [org.apache.stanbol.entityhub.yard.solr.impl.SolrYard] The activate method
> has thrown an exception (java.lang.IllegalArgumentException: No Provider for
> type EMBEDDED available) java.lang.IllegalArgumentException: No Provider for
> type EMBEDDED available
> at
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager.getSolrServer(SolrServerProviderManager.java:98)
> ...
> (6) 02:36:42.948
> 2ms later the EmbeddedSolrPorovider is added again to the
> SolrServerProviderManager
> 21.03.2011 02:36:42.948 *INFO* [SCR Component Actor]
> org.apache.stanbol.entityhub.yard.solr.provider.SolrServerProviderManager add
> SolrProvider
> org.apache.stanbol.entityhub.yard.solr.embedded.EmbeddedSolrPorovider@8917a2
> types [EMBEDDED]
> The important thing would be to understand why the EmbeddedSolrServerProvider
> gets unregistered in (3) and than registered again in (6).
> Also note that there are two threads ([SCR Component Actor] and
> [Configuration Updater]) working at the same time.
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