JarCasting
OpenTracing Redis Client Instrumentation
OpenTracing instrumentation for Redis Client
Requirements
- Java 8
Installation
Jedis
Jedis 2
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-jedis</artifactId>
<version>VERSION</version>
</dependency>
Jedis 3
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-jedis3</artifactId>
<version>VERSION</version>
</dependency>
Lettuce
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-lettuce-5.2</artifactId>
<version>VERSION</version>
</dependency>
Redisson
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-redisson</artifactId>
<version>VERSION</version>
</dependency>
Spring Data Redis 1.x
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-spring-data</artifactId>
<version>VERSION</version>
</dependency>
Spring Data Redis 2.x
pom.xml
<dependency>
<groupId>io.opentracing.contrib</groupId>
<artifactId>opentracing-redis-spring-data2</artifactId>
<version>VERSION</version>
</dependency>
Usage
// Instantiate tracer
Tracer tracer = ...
// Create TracingConfiguration
TracingConfiguration tracingConfiguration = new TracingConfiguration.Builder(tracer).build();
Jedis
// Create Tracing Jedis
Jedis jedis = new TracingJedis(tracingConfiguration);
jedis.set("foo", "bar");
String value = jedis.get("foo");
Jedis Cluster
Set<HostAndPort> jedisClusterNodes = new HashSet<HostAndPort>();
jedisClusterNodes.add(new HostAndPort("127.0.0.1", 7379));
// Create Tracing Jedis Cluster
JedisCluster jc = new TracingJedisCluster(jedisClusterNodes, tracingConfiguration);
jc.set("foo", "bar");
String value = jc.get("foo");
Jedis Pool
// Configure the pool
JedisPoolConfig poolConfig = new JedisPoolConfig();
poolConfig.setMaxIdle(10);
poolConfig.setTestOnBorrow(false);
// Create Tracing Jedis Pool
JedisPool pool = new TracingJedisPool(poolConfig, "127.0.0.1", 6379, tracingConfiguration);
try (Jedis jedis = pool.getResource()) {
// jedis will be automatically closed and returned to the pool at the end of "try" block
jedis.set("foo", "bar");
String value = jedis.get("foo");
}
Jedis Sentinel Pool
// Create Tracing Jedis Sentinel Pool
JedisSentinelPool pool = new TracingJedisSentinelPool(tracingConfiguration, MASTER_NAME, sentinels, poolConfig);
try (Jedis jedis = pool.getResource()) {
// jedis will be automatically closed and returned to the pool at the end of "try" block
jedis.set("foo", "bar"));
String value = jedis.get("foo"));
}
Jedis Span Name
By default, span names are set to the operation performed by the Jedis object. To customize the span name, provide a Function to the TracingConfiguration object that alters the span name. If a function is not provided, the span name will remain the default. Refer to the RedisSpanNameProvider class for a function that prefixes the operation name.
TracingConfiguration tracingConfiguration = new TracingConfiguration.Builder(tracer)
.withSpanNameProvider(RedisSpanNameProvider.PREFIX_OPERATION_NAME("redis."))
.build();
//Create Tracing Jedis with custom span name
Jedis jedis = new TracingJedis(tracingConfiguration);
jedis.set("foo", "bar");
//Span name is now set to "redis.set"
Lettuce
// Create client
RedisClient client = RedisClient.create("redis://localhost");
// Decorate StatefulRedisConnection with TracingStatefulRedisConnection
StatefulRedisConnection<String, String> connection =
new TracingStatefulRedisConnection(client.connect(), tracingConfiguration);
// Get sync redis commands
RedisCommands<String, String> commands = connection.sync();
// Get async redis commands
RedisAsyncCommands<String, String> commandsAsync = connection.async();
Redisson
// Create Redisson config object
Config = ...
// Create Redisson instance
RedissonClient redissonClient = Redisson.create(config);
// Decorate RedissonClient with TracingRedissonClient
RedissonClient tracingRedissonClient = new TracingRedissonClient(redissonClient, tracingConfiguration);
// Get object you need using TracingRedissonClient
RMap<MyKey, MyValue> map = tracingRedissonClient.getMap("myMap");
Spring
// Create tracing connection factory bean
@Bean
public RedisConnectionFactory redisConnectionFactory() {
LettuceConnectionFactory lettuceConnectionFactory = new LettuceConnectionFactory();
lettuceConnectionFactory.afterPropertiesSet();
return new TracingRedisConnectionFactory(lettuceConnectionFactory,
new TracingConfiguration.Builder(tracer()).build());
}
Note: if you use Lettuce/Jedis you could achieve the same result using the Lettuce/Jedis support when configuring LettuceConnectionFactory/JedisConnectionFactory instead of using a wrapping TracingRedisConnectionFactory.
