Updated default values with circuit breaker properties

redis-field-engineering · Mar 29, 2023 · 19f9ca3 · 19f9ca3
1 parent aee21e4
commit 19f9ca3
Show file tree

Hide file tree

Showing 4 changed files with 39 additions and 11 deletions.
diff --git a/README.md b/README.md
@@ -21,6 +21,10 @@ benchmark.key.data=AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
 Sample benchmark.properties for multi-cluster Redis databases ([`Active-Active`](https://redis.com/redis-enterprise/technology/active-active-geo-distribution/) or [`Active-Passive`](https://redis.com/redis-enterprise/technology/active-passive-geo-distribution/)):
 ```properties
 redis.connection=redis-10422.c289.us-east-1-2.ec2.cloud.redislabs.com,redis-10422.c289.us-west-1-2.ec2.cloud.redislabs.com
+# In this configuration, we've set a sliding window size of 10 and a failure rate threshold of 50%. This means that a failover will be triggered if 5 out of any 10 calls to Redis fail.
+#redis.connection.circuit.breaker.sliding.window.size=10
+#redis.connection.circuit.breaker.sliding.window.min.calls=1
+#redis.connection.circuit.breaker.failure.rate.threshold=50.0f
 redis.user=<Redis DB user or blank/default>
 redis.password=<Redis DB password or blank if none>
 benchmark.key.amount=1000

diff --git a/src/main/java/com/redis/benchmark/utils/BenchmarkConfiguration.java b/src/main/java/com/redis/benchmark/utils/BenchmarkConfiguration.java
@@ -27,9 +27,14 @@ private Properties getProperties() {
                 System.err.println("\n\nERROR: Please create benchmark.properties and pass it as REDIS_BENCHMARK_CONFIG system property then execute the program!\n");
                 String sample = "Sample benchmark.properties:\n" +
                         "##############################################\n" +
-                        "redis.connection=127.0.0.1:6379,127.0.0.1:6380\n" +
-                        "redis.user=<Redis DB user or blank/default>\n" +
-                        "redis.password=<Redis DB password or blank if none>\n" +
+                        "#redis.connection=127.0.0.1:6379,127.0.0.1:6380\n" +
+                        "# In this configuration, we've set a sliding window size of 10 and a failure rate threshold of 50%.\n" +
+                        "# This means that a failover will be triggered if 5 out of any 10 calls to Redis fail.\n" +
+                        "#redis.connection.circuit.breaker.sliding.window.size=10\n" +
+                        "#redis.connection.circuit.breaker.sliding.window.min.calls=1\n" +
+                        "#redis.connection.circuit.breaker.failure.rate.threshold=50.0f\n" +
+                        "#redis.user=<Redis DB user or blank/default>\n" +
+                        "#redis.password=<Redis DB password or blank if none>\n" +
                         "benchmark.key.amount=1000\n" +
                         "benchmark.key.data=USAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSA\n" +
                         "##############################################\n";
@@ -44,30 +49,45 @@ private Properties getProperties() {
 
     private String getConnectionString() {
         Properties properties = getProperties();
-        return properties.getProperty("redis.connection");
+        return properties.getProperty("redis.connection", "127.0.0.1:6379");
+    }
+
+    public String getConnectionCircuitBreakerSlidingWindowSize() {
+        Properties properties = getProperties();
+        return properties.getProperty("redis.connection.circuit.breaker.sliding.window.size", String.valueOf(10));
+    }
+
+    public String getConnectionCircuitBreakerSlidingWindowMinCalls() {
+        Properties properties = getProperties();
+        return properties.getProperty("redis.connection.circuit.breaker.sliding.window.min.calls", String.valueOf(1));
+    }
+
+    public String getConnectionCircuitBreakerFailureRateThreshold() {
+        Properties properties = getProperties();
+        return properties.getProperty("redis.connection.circuit.breaker.failure.rate.threshold", String.valueOf(50.0f));
     }
 
     public String getRedisUser() {
         Properties properties = getProperties();
-        return properties.getProperty("redis.user");
+        return properties.getProperty("redis.user", "default");
     }
 
     public String getRedisPassword() {
         Properties properties = getProperties();
-        return properties.getProperty("redis.password");
+        return properties.getProperty("redis.password", "");
     }
 
     String getKeyContentData() {
         Properties properties = getProperties();
-        return properties.getProperty("benchmark.key.data");
+        return properties.getProperty("benchmark.key.data", "USAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSAUSA");
     }
 
     public Integer getAmountOfKeys() {
         if (amountOfKeys > 0) {
             return amountOfKeys;
         }
         Properties properties = getProperties();
-        amountOfKeys = Integer.parseInt(properties.getProperty("benchmark.key.amount"));
+        amountOfKeys = Integer.parseInt(properties.getProperty("benchmark.key.amount", String.valueOf(1000)));
         return amountOfKeys;
     }
 

diff --git a/src/main/java/com/redis/benchmark/utils/JedisConnectionManagement.java b/src/main/java/com/redis/benchmark/utils/JedisConnectionManagement.java
@@ -54,8 +54,9 @@ private void createJedisConnection() {
                     index++;
                 }
                 multiClusterJedisClientConfig = new MultiClusterJedisClientConfig.Builder(clusterJedisClientConfigs);
-                multiClusterJedisClientConfig.circuitBreakerSlidingWindowSize(5);
-                multiClusterJedisClientConfig.circuitBreakerSlidingWindowMinCalls(1);
+                multiClusterJedisClientConfig.circuitBreakerSlidingWindowSize(Integer.parseInt(BenchmarkConfiguration.get().getConnectionCircuitBreakerSlidingWindowSize()));
+                multiClusterJedisClientConfig.circuitBreakerSlidingWindowMinCalls(Integer.parseInt(BenchmarkConfiguration.get().getConnectionCircuitBreakerSlidingWindowMinCalls()));
+                multiClusterJedisClientConfig.circuitBreakerFailureRateThreshold(Float.parseFloat(BenchmarkConfiguration.get().getConnectionCircuitBreakerFailureRateThreshold()));
                 provider = new MultiClusterPooledConnectionProvider(multiClusterJedisClientConfig.build());
 
                 connectionManagement.unifiedJedis = new UnifiedJedis(provider);

diff --git a/src/main/resources/benchmark.properties b/src/main/resources/benchmark.properties
@@ -1,5 +1,8 @@
 redis.connection=127.0.0.1:6379,127.0.0.1:6380
+#redis.connection.circuit.breaker.sliding.window.size=10
+#redis.connection.circuit.breaker.sliding.window.min.calls=1
+#redis.connection.circuit.breaker.failure.rate.threshold=50.0f
 #redis.user=
 #redis.password=
-benchmark.key.amount=1000
+#benchmark.key.amount=1000
 benchmark.key.data=                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                