Default Parameters for ZkpStatTest

This test monitors the current state and the packet transmission and reception of the target Apache Zookeeper server. This test helps administrators figure out the number of znodes, followers, watches of the znodes, synchronized followers etc connected to the target Apache Zookeeper server. Using this test, administrators can figure out the file descriptors that are currently open. This way, administrators can figure out the responsiveness of the server.

This page depicts the default parameters that need to be configured for the ZkpStatTest.

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• By default, the eG agent executes REST APIs with a small set of four letter word commands on the target server to collect the required metrics. The AdminServer is an embedded Jetty server that provides an HTTP interface to the four letter word commands. In order to execute the REST APIs and collect the metrics, the eG agent should be configured with the port on which the AdminServer was started on the target Apache Zookeeper. By default, ADMINSERVER PORTNO is set to 8080.

• Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with “$” indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to “xyz*” and $port will be changed to “80” when configuring a test.