Hive Queries Test

The real test of the performance of a data warehouse lies in how quickly the database responds to queries. Whenever users complaint of slow execution of their queries, administrators need to know the reason for the delay - is it because the queries themselves are badly designed? or is it because of some queries consuming too much of physical reads per execution? The Hive Queries test helps with this root-cause analysis.

This test monitors each database instance in the target Apache Hive data warehouse and reports the maximum number open and closed queries that exists as a result of query execution.

Target of the test : Apache Hive

Agent deploying the test : An internal/remote agent

Outputs of the test : One set of results for the target Apache Hive

Configurable parameters for the test
Parameter Description

Test period

How often should the test be executed.

Host

The IP address of the target server that is being monitored.

Port

The port number through which the Apache Hive communicates. The default port is 10002.

SSL

By default, the SSL flag is set to False, indicating that the target Apache Hive is not SSL-enabled by default. To enable the test to connect to an SSL-enabled Apache Hive, set the SSL flag to True.

DD Frequency

Refers to the frequency with which detailed diagnosis measures are to be generated for this test. The default is 1:1. This indicates that, by default, detailed measures will be generated every time the test runs, and also every time the test detects a problem. You can modify this frequency, if you so desire. Also, if you intend to disable the detailed diagnosis capability for this test, you can do so by specifying none against DD Frequency.

Detailed Diagnosis

To make diagnosis more efficient and accurate, the eG Enterprise 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 for a particular server, choose the On option. To disable the capability, click on the Off option. The option to selectively enabled/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 normal and abnormal frequencies configured for the detailed diagnosis measures should not be 0.
Measurements made by the test
Measurement Description Measurement Unit Interpretation

Open queries

Indicates the number of open queries after query execution.

Number

Ideally, the value of this measure should be zero.

Closed queries

Indicates the number of closed queries after query execution.

Number