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https://issues.apache.org/jira/browse/CONNECTORS-55?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12886724#action_12886724
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Jack Krupansky commented on CONNECTORS-55:
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When Karl says "It *does* limit your ability to use other commands
simultaneously" (referring to use of embedded Derby), he is referring to
commands executed using the "executecommand" shell script, such as registering
and unregistering connectors, which is something typically done once before
starting the UI or once every blue moon when you want to support a new type of
repository, but not done on as regular a basis as editing connections and jobs
and running jobs. The java classes to execute those commands would be, by
definition, outside of the LCF process.
> Bundle database server with LCF packaged product
> ------------------------------------------------
>
> Key: CONNECTORS-55
> URL: https://issues.apache.org/jira/browse/CONNECTORS-55
> Project: Lucene Connector Framework
> Issue Type: Improvement
> Components: Framework core
> Reporter: Jack Krupansky
>
> The current requirement that the user install and deploy a PostgreSQL server
> complicates the installation and deployment of LCF for the user. Installation
> and deployment of LCF should be as simple as Solr itself. QuickStart is great
> for the low-end and basic evaluation, but a comparable level of simplified
> installation and deployment is still needed for full-blown, high-end
> environments that need the full performance of a ProstgreSQL-class database
> server. So, PostgreSQL should be bundled with the packaged release of LCF so
> that installation and deployment of LCF will automatically install and deploy
> a subset of the full PostgreSQL distribution that is sufficient for the needs
> of LCF. Starting LCF, with or without the LCF UI, should automatically start
> the database server. Shutting down LCF should also shutdown the database
> server process.
> A typical use case would be for a non-developer who is comfortable with Solr
> and simply wants to crawl documents from, for example, a SharePoint
> repository and feed them into Solr. QuickStart should work well for the low
> end or in the early stages of evaluation, but the user would prefer to
> evaluate "the real thing" with something resembling a production crawl of
> thousands of documents. Such a user might not be a hard-core developer or be
> comfortable fiddling with a lot of software components simply to do one
> conceptually simple operation.
> It should still be possible for the user to supply database server settings
> to override the defaults, but the LCF package should have all of the
> best-practice settings deemed appropriate for use with LCF.
> One downside is that installation and deployment will be platform-specific
> since there are multiple processes and PostgreSQL itself requires a
> platform-specific installation.
> This proposal presumes that PostgreSQL is the best option for the foreseeable
> future, but nothing here is intended to preclude support for other database
> servers in futures releases.
> This proposal should not have any impact on QuickStart packaging or
> deployment.
> Note: This issue is part of Phase 1 of the CONNECTORS-50 umbrella issue.
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