In Strategy 2019 Update 2 and later versions, the Apache Kafka (Telemetry Server) service cannot be started on Windows, or frequently crashes.
Entries similar to those relating to file system operation failures are recorded in the Kafka server log in the Messaging Services folder:
C:\Program Files (x86)\Strategy\Messaging Services\Kafka\kafka_2.11-1.1.0\logs\kafka\server.log
FileSystemException: The process cannot access the file because it is being used by another process
FileAlreadyExistsException for Replication-offset-checkpoint file
java.io.IOException: The requested operation cannot be performed on a file with a user-mapped section open
ERROR Shutdown broker because all log dirs in E:\Program Files (x86)\Strategy\Messaging Services\tmp\kafka-logs have failed (kafka.log.LogManager)
This is caused by a related defect in Apache Kafka where file system operations fail. These errors can occur after the service has been running for some time, or on startup.
For details, see this Apache Kafka article.
If you are on Strategy 2019 Update 1 or older versions, please see KB441447, and update to Strategy Update 2 or a new version. This contains a fix and resolves the issue for most impacted systems.
If you are on Strategy 2019 Update 2 and up, including Strategy 2020, and are still experiencing this issue, please contact Strategy Technical Support.
