Fusion Server 5.1.4 Release Notes


Release date: 25 June 2020

Component versions:

Solr 8.4.1

ZooKeeper 3.5.6

Spark 2.4.5

A patch is released for this version that addresses an issue that can cause a serious performance issue for high-scale deployments. Please upgrade from Fusion 5.1.4 to 5.1.5 as soon as possible. Contact your Customer Excellence representative if you have questions about the potential impact to your deployment.

Bug fixes


  • Fixed bug that caused Spark jobs to hang.

  • Clusters upgraded to 5.1.3 had incompatible plugins in the blob store. Classic plugins installed in a previous version will be upgraded on migrations.

  • More helpful error messages from Solr are now transferred to the admin UI to make it easier to debug queries.