Strategy Telemetry is an integral part of Strategy Intelligence Enterprise that provides Messaging Services for Intelligence Server logs and a central backbone for Platform Analytics. To provide these functionalities, Telemetry depends on a third-party Apache Zookeeper service. To ensure the performance and availability of many important services, especially Apache Zookeeper, Strategy provides a seamless way for system administrators to monitor and control these services through the Topology view in MicroStrategy Workstation.
The following screenshot illustrates how Topology can be used to monitor Strategy services installed on multiple nodes.
Various Strategy and third-party services are monitored by Topology by sending health check signals on a periodic basis. For monitoring Apache Zookeeper service, Topology sends TCP connection requests to the service port, which has a default port number of 2181, at every pre-determined interval (the default interval is 10 seconds). These TCP checks are kept lightweight and short-lived to minimize the performance impact to Zookeeper as its target service. The short-lived TCP heatlh checks, however, are detected by Zookeeper as a connection request from a client that got disconnected and furter needs to be closed explicitly. Whenever this clean-up action is performed, Zookeeper will print the following warning entries into its log file.
The warning entries are expected during Zookeeper's normal operations and can be safely ignored.
By default, the log file is in the following paths:
In Windows
C:\Program Files (x86)\MicroStrategy\Messaging Services\Kafka\kafka_2.11-1.1.0\logs\zookeeper\server.log
/opt/MicroStrategy/MessagingServices/Kafka/kafka_2.11-1.1.0/logs/zookeeper.out
