Rupert Westenthaler created STANBOL-1092:
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Summary: Improve UpdateHandler configuration of the SolrYard and
enable commitWithin by default
Key: STANBOL-1092
URL: https://issues.apache.org/jira/browse/STANBOL-1092
Project: Stanbol
Issue Type: Improvement
Components: Entityhub
Reporter: Rupert Westenthaler
Assignee: Rupert Westenthaler
Right now the default configuration of the SolrYard is
* commitWithin is deactivated - meaning that every change does trigger a commit
* Auto commit is deactivated
* Transaction Log is enabled
* Soft Commit is deactivated
This has several potential issues
* The default configuration is very slow for updates (e.g. loading Entities to
a ManagedSite)
* If commitWithin is enabled there will be no commits what will cause the
Transaction Log to grow up to the size of the index
With this issue the default configuration will be changed like follows:
* commitWithin will be enabled by default(change in the DEFAULT value for the
configuration property). The (default) duration will be kept by 10sec
* (hard) auto commit will be set to 20sec. This ensures that data are written
to disc at least every 20sec
* soft auto commit will be set to 1sec. This means that an added/updated Entity
will be available to seaches latest 1sec after adding it
* transaction log will be deactivated. Users that do need real time search will
need to configure this manually. Please also not the Solr Documentation for how
to configure this feature properly (e.g. it is recommended to have the
transaction log on a different disc as the index)
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