fixmlindex.exe FAST Search Server 2010 for SharePoint 2010 – High CPU and Memory usage

FAST Search Server 2010 Backend

Symptoms: fixmlindex.exe process consumes high CPU and memory usage on FAST Search server 2010 for SharePoint 2010.

Cause: Adding many managed properties to schema over time may lead to high memory usage in the fixmlindex.exe process.

Solution: To work around this, either reinstall FAST Search and apply the schema changes in one go, or follow this procedure:

  1. Perform all schema updates before starting feeding.
  2. Stop the FASTSearchService
  3. Remove the file
  4. etc\config_data\Schema\webcluster\summaryclasses.xml
  5. Start the FASTSearchService
  6. Start feed.

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