Redis Data Set

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Description

Redis Data Set requests data from a Redis server and converts to JMeter variables. This allows data to be served from a single Redis server across multiple JMeter slave instances during a test, without needing to split the file or handle duplicate rows of data.

The plugin has the following features:

• Automatic conversion to JMeter variables
• Data can be retrieved from a Redis List or Set
• Recycle or removal of test data on use
• Thread stop when no more data available
• Multiple concurrent JMeter clients from a single Redis instance
• Support for password-protected Redis instances

Data is loaded to Redis under a key, where each entry is a string that is delimited into one or more variables. See Loading Data to Redis below.

In the following example, there are 2 Redis databases, 0 and 1. Database 0 has 2 index keys, ccKeys and userName.

+- 0
   +- ccKeys
      +- "123456,1234"
      +- "123457,1235"
      +- "123458,1236"
   +- userName
      +- "user1"
      +- "user2"
      +- "user3"

Redis Lists vs Sets =

List

Set

=#Configuration

Configuration

Data Configuration

This section describes how the data is stored within Redis and how it should be mapped to JMeter Variables. All options in this section are mandatory.

• Redis Key : The list or set name
• Variable Names : The names of variables exported by Data Set to Test elements. These are the equivalent of CSV column headers in the CSV Data Set.
• Delimiter : Separator used within row stored in Redis List or Set
• Data Source Type : Whether the data is loaded to Redis as a List or Set
• Recycle Data on Use : Whether data can be re-used, or should be removed from Redis on use. If true, then data will be re-used, across multiple iterations, threads and load generators. If false, then data will be consumed upon use. Once the data is exhausted, no further iterations will be executed. This is useful if you must ensure unique data is used across load generators.

Connection Configuration

The following options are mandatory:

• Redis Server Host : Hostname of the Redis server.
• Redis Server Port : This will typically be the standard Redis port 6379.
• Database : Redis database, typically set to 0.

The following options are optional:

• Timeout for connection (ms)
• Password for connection : Add password for Redis databases that require authentication

Redis Pool Configuration

These options are controlled by the Apache Commons Pool library, and are described in more detail in the API page for that project.

=#loadingDataToRedis

Loading Data to Redis

It is typically most efficient to load data to Redis using pipe mode, `redis-cli --pipe`.

An input CSV file that looks like this:

   ccNum,expiryDate
   123456,1234
   123457,1235
   123458,1236

would first need to be converted to a Redis-compatible input format before being loading into a List with an index key ccList:

LPUSH ccList 123456,1234
LPUSH ccList 123457,1235
LPUSH ccList 123458,1236

or, in the case of a Set, with an index key ccSet:

SADD ccSet 123456,1234
SADD ccSet 123457,1235
SADD ccSet 123458,1236

In the below example, we declare a Redis Data Set which exports cardNumber variable from a Redis List using a key ccList and then use it in a Debug Sampler:

The JMX can be downloaded here.

=#TechnicalDetails

Technical Details

The RedisDataSet uses the Jedis Java Redis library for connection and access operations. Starting from version 0.6, RedisDataSet uses srandmember and lmove commands. For Redis versions below 6.2.0, you can define a "plugins.redis.legacy=true" property in jmeter.properties.

For data loaded into a Redis set, RedisDataSet uses spop and sadd commands.

For data loaded into a Redis list, RedisDataSet uses lpop and rpush commands.