Article - CS322127

Sudden disconnections are noticed between ThingWorx Platform and KEPServerEX/ThingWorx Industrial Connectivity/ThingWorx Kepware Server

Modified: 27-May-2020   


Applies To

  • ThingWorx Platform 8.3 to 8.5
  • ThingWorx Kepware Server (legacy) 8.3 to 8.5
  • Kepware Server (formerly KEPServerEX) 6.6 to 6.8

Description

  • ThingWorx Platform suddenly disconnect from Kepware and will not reconnect anymore,
    • Kepware connections must be reinitialized to reconnect
  • High CPU usage observed on the ThingWorx Platform
  • Frequent disconnections with KEPServerEX/ThingWorx industrial Connectivity/ThingWorx Kepware Server during times of high CPU load on the ThingWorx host
  • CPU usage spikes greatly when many Event Processing Threads are active at the same time
  • Slow throughput for Event Threads
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