Release date: 3 September 2019 Component versions:
Solr 7.7.2ZooKeeper 3.4.13Spark 2.3.2Jetty 9.4.19.v20190610Ignite 2.6.0
More information about support dates can be found at Lucidworks Fusion Product Lifecycle.

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New features

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SharePoint Optimized and SharePoint Online Optimized Connectors

Fusion 4.2.4 introduces ground-up rewrite of our SharePoint and SharePoint Online connectors. The new connectors, SharePoint Online V1 Optimized offer a variety of new features and benefits, including:
  • Performance of the initial crawl and incremental crawls have been significantly improved.
  • Security trimming has been centralized so it can be shared between different connector configurations. This is handled by the Active Directory Connector for ACLs. SharePoint Optimized Security Trimming
  • More options are available for limiting documents. SharePoint Optimized Limit Docs
  • More options are available for customizing crawl performance. SharePoint Optimized Crawl Performance
Users are encouraged to upgrade from the classic connectors to the optimized connectors.

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Active Directory Connector for ACLs

The new Active Directory Connector for ACLs indexes Access Control List (ACL) information into a configured collection so that it can be used by the SharePoint Optimized and SharePoint Online Optimized connectors. Active Directory Connector for ACLs

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Forked Apache Tika Parser

Fusion Server 4.2.4 adds a new parser, the Forked Apache Tika parser. This parser is a simplified Apache Tika parser geared towards an Enterprise Search crawl in which all documents are parsed in a forked Java Virtual Machine. If memory issues occur while parsing, such as an Out Of Memory condition, the connector job is unaffected. Forked Tika Parser

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Auto-scaling Policies

Fusion now supports search, analytics, and system auto-scaling policies for application and system collections. When creating a collection in Solr, Fusion enables autoscaling by passing a policy parameter to apply an auto-scaling policy to the collection. This functionality uses Solr’s auto-scaling policies.

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Improvements

  • The Rules UI now supports bulk actions, including Add Tags, Enable, Disable, and Delete. test
  • Fields in the Rules UI now support typeahead.
  • In Rules, the Field Value filter queries, fq, are no longer required to be a perfect match. For example, the following filter queries return the same result:
    • fq=foo:bar
    • fq=foo:("bar")
    • fq={!tag=foo}foo:bar
  • When deleting a rule from a list of rules, you remain on the current page instead of being sent to page 1.
  • CrawlDB operations now let MapDB store information in multiple files instead of just one. This enables a user to delete an individual table by deleting the corresponding MapDB file.
    This change affects V1 connectors that support bulk import operations. Other connectors are unaffected by this change.
  • The Confluence connector now uses prefetch logic to significantly improve crawl performance. Enable prefetch
  • The Confluence connector has a new property, CONFLUENCE API REQUEST PAGE SIZE, which specifies the number of records per response page for REST API calls to Confluence. Confluence API Request Page Size
  • Minor improvements are made to the Jobs panel.
  • Minor improvements are made to the Scheduler panel.

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Other changes

  • Fixed an issue introduced in Fusion 4.2.0 that occasionally caused the Fusion proxy service to become stuck while under load and resulted in user authentication to fail.
  • Jersey has been updated to version 2.29.
  • Fusion now saves the facet rule minCount value as expected.
  • The facet fields in Rules > Business Rules now display correctly.
  • Aggregation jobs can now run incrementally as documents are updated incrementally.
  • Fixed a bug that stopped recommender jobs from detecting associated recommendation collections.
  • Fixed a memory leak in the Security Trimming stage of the Alfresco connector.
  • Updated the Boost List and Bury List rules so they do not conflict if both are triggered for the same query.
  • Fixed a Head/Tail Analysis Job UI bug that prevented a job from being saved if the KEYWORD BLOB NAME was modified before being cleared.
  • Fixed a UI bug in Rules that left the Publish process active after changes were made to a deactivated rule.
  • Fixed an empty dialog box which appeared while importing an app after starting over.
  • Fixed a bug that prevents App Insights and App Studio from accessing authentication tokens or session tokens if Fusion is running with Trusted HTTP enabled.
  • Fixed a bug in Rules > Business Rules that prevented users from sorting rules by date if only rules with future dates were present.
  • Fixed a bug that prevented machine learning models from being recreated after being deleted from the blob store.
  • Unnecessary items are now deleted from the CrawlDB database as expected after the crawl is completed. This change affects V2 connectors only.
  • Each connector job now remains dedicated to the node on which it originally ran.
  • Access control items are now indexed in batches instead of one at a time in V2 connectors.
  • The HTML parser can now parse more media types, including plain text.

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Known issues

  • Security trimming on the Alfresco connector may result in a Solr error. This is fixed in Fusion 4.2.5.
  • If a document moves, the Alfresco connector will attempt to index the document at the previous and current location.
    This is fixed in Fusion 4.2.6.
  • The Alfresco connector will attempt to index old and new versions of a document.
    This is fixed in Fusion 4.2.6.
  • The Alfresco connector will not update the acls_ss field unless Force Recrawl is selected.
    This is fixed in Fusion 4.2.6.