Configuration of ZkpCliConTest

Using this test, administrators can determine the packet transmission and reception of each client connected to the target Apache Zookeeper server. This test also helps administrators determine which client is taking too long to process the requests and the client on which too many connections are currently active. This way, the test provides near-accurate indicators of the client connection load on the target Apache Zookeeper server. Also, by reporting the count of requests that are in queue for each client, the test reveals early to administrators if a client is experiencing request processing difficulties.

The default parameters associated with this test are:

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

• In the HOST text box, specify the HOST for which this test is to be configured.

• In the PORT text box, specify the port at which the specified HOST listens.

• 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.

• To make diagnosis more efficient and accurate, eG embeds an optional detailed diagnostic capability. With this capability, the eG agents can be configured to run detailed, more elaborate tests as and when specific problems are detected. To enable the detailed diagnosis capability of this test, by default, for a particular server, choose the On option against DETAILED DIAGNOSIS. To disable the capability, click on the Off option.

  The option to selectively enable/disable the detailed diagnosis capability will be available only if the following conditions are fulfilled:

  • The eG manager license should allow the detailed diagnosis capability.

  • Both the bad and normal frequencies configured for the detailed diagnosis measures should not be 0.

• If multiple components of the same component type are awaiting configuration, then an APPLY TO OTHER COMPONENTS check box will appear in this page. Clicking on this check box will allow you to apply the configuration to all/selected components of that type.

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

When changing the configuration for specific servers, a “*” beside the text box corresponding to the parameter signifies that these values have to be manually configured by the user. The parameter values that require to be configured will typically be prefixed with a “$” or contain a series of “*”. A value of “none” in the parameter value indicates that the corresponding parameter value can be changed if required.