[grid] Update Redisson client connection pool default values

Author: pujagani

java/server/src/org/openqa/selenium/redis/GridRedisClient.java

@@ -29,6 +29,7 @@
 import org.redisson.api.RSet;
 import org.redisson.api.RedissonClient;
 import org.redisson.config.Config;
+import org.redisson.config.SingleServerConfig;
 
 import java.io.Closeable;
 import java.net.URI;
@@ -51,7 +52,10 @@ public GridRedisClient(URI serverUri) {
 
     Config redissonConfig = new Config();
     redissonConfig.setNettyThreads(0);
-    redissonConfig.useSingleServer().setAddress(serverUri.toString());
+    SingleServerConfig singleServerConfig = redissonConfig.useSingleServer();
+    singleServerConfig.setAddress(serverUri.toString());
+    singleServerConfig.setConnectionMinimumIdleSize(5);
+    singleServerConfig.setConnectionPoolSize(5);
     redissonClient = Redisson.create(redissonConfig);
     service = redissonClient.getLiveObjectService();
   }