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kandi has reviewed Hystrix and discovered the below as its top functions. This is intended to give you an instant insight into Hystrix implemented functionality, and help decide if they suit your requirements.
Hystrix is a latency and fault tolerance library designed to isolate points of access to remote systems, services and 3rd party libraries, stop cascading failure and enable resilience in complex distributed systems where failure is inevitable.
Hello World!
public class CommandHelloWorld extends HystrixCommand<String> {
private final String name;
public CommandHelloWorld(String name) {
super(HystrixCommandGroupKey.Factory.asKey("ExampleGroup"));
this.name = name;
}
@Override
protected String run() {
return "Hello " + name + "!";
}
}
Binaries
<dependency>
<groupId>com.netflix.hystrix</groupId>
<artifactId>hystrix-core</artifactId>
<version>x.y.z</version>
</dependency>
Build
$ git clone git@github.com:Netflix/Hystrix.git
$ cd Hystrix/
$ ./gradlew build
Run Demo
$ git clone git@github.com:Netflix/Hystrix.git
$ cd Hystrix/
./gradlew runDemo
org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class cannot be opened because it does not exist
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix:2.2.10.RELEASE'
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix'
-----------------------
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix:2.2.10.RELEASE'
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix'
Use main Gradle project to define all dependencies versions
dependencyResolutionManagement {
versionCatalogs {
libs {
library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
library('threetenbp', 'org.threeten:threetenbp:1.5.1')
library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
library('lombok', 'org.projectlombok:lombok:1.18.22')
library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
}
}
}
dependencies {
implementation libs.spring.cloud.starter
implementation libs.spring.boot.starter.validation
testImplementation libs.spring.boot.starter.test
implementation libs.threetenbp
implementation libs.spring.boot.starter.actuator
// Lombok
compileOnly libs.lombok
annotationProcessor libs.lombok
testCompileOnly libs.lombok
testAnnotationProcessor libs.lombok
// Swagger
implementation libs.springfox.boot.starter
implementation libs.spring.boot.starter.hateoas
implementation libs.hysterix.core
implementation libs.spring.security.core
testImplementation libs.junit.jupiter.api
testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
imports {
mavenBom libs.spring.cloud.bom.get().toString()
}
resolutionStrategy {
cacheDynamicVersionsFor 0, "seconds"
cacheChangingModulesFor 0, "seconds"
}
}
-----------------------
dependencyResolutionManagement {
versionCatalogs {
libs {
library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
library('threetenbp', 'org.threeten:threetenbp:1.5.1')
library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
library('lombok', 'org.projectlombok:lombok:1.18.22')
library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
}
}
}
dependencies {
implementation libs.spring.cloud.starter
implementation libs.spring.boot.starter.validation
testImplementation libs.spring.boot.starter.test
implementation libs.threetenbp
implementation libs.spring.boot.starter.actuator
// Lombok
compileOnly libs.lombok
annotationProcessor libs.lombok
testCompileOnly libs.lombok
testAnnotationProcessor libs.lombok
// Swagger
implementation libs.springfox.boot.starter
implementation libs.spring.boot.starter.hateoas
implementation libs.hysterix.core
implementation libs.spring.security.core
testImplementation libs.junit.jupiter.api
testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
imports {
mavenBom libs.spring.cloud.bom.get().toString()
}
resolutionStrategy {
cacheDynamicVersionsFor 0, "seconds"
cacheChangingModulesFor 0, "seconds"
}
}
-----------------------
dependencyResolutionManagement {
versionCatalogs {
libs {
library('spring-cloud-bom', 'org.springframework.cloud:spring-cloud-dependencies:2021.0.1')
library('spring-cloud-starter', 'org.springframework.cloud', 'spring-cloud-starter-netflix-eureka-client').withoutVersion()
library('spring-boot-starter-validation', 'org.springframework.boot', 'spring-boot-starter-validation').withoutVersion()
library('spring-boot-starter-test', 'org.springframework.boot', 'spring-boot-starter-test').withoutVersion()
library('threetenbp', 'org.threeten:threetenbp:1.5.1')
library('spring-boot-starter-actuator', 'org.springframework.boot', 'spring-boot-starter-actuator').withoutVersion()
library('lombok', 'org.projectlombok:lombok:1.18.22')
library('springfox-boot-starter', 'io.springfox:springfox-boot-starter:3.0.0')
library('spring-boot-starter-hateoas', 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3')
library('hysterix-core', 'com.netflix.hystrix:hystrix-core:1.5.18')
library('spring-security-core', 'org.springframework.security:spring-security-core:5.6.1')
library('junit-jupiter-api', 'org.junit.jupiter:junit-jupiter-api:5.8.2')
library('junit-jupiter-engine', 'org.junit.jupiter:junit-jupiter-engine:5.8.2')
}
}
}
dependencies {
implementation libs.spring.cloud.starter
implementation libs.spring.boot.starter.validation
testImplementation libs.spring.boot.starter.test
implementation libs.threetenbp
implementation libs.spring.boot.starter.actuator
// Lombok
compileOnly libs.lombok
annotationProcessor libs.lombok
testCompileOnly libs.lombok
testAnnotationProcessor libs.lombok
// Swagger
implementation libs.springfox.boot.starter
implementation libs.spring.boot.starter.hateoas
implementation libs.hysterix.core
implementation libs.spring.security.core
testImplementation libs.junit.jupiter.api
testRuntimeOnly libs.junit.jupiter.engine
}
dependencyManagement {
imports {
mavenBom libs.spring.cloud.bom.get().toString()
}
resolutionStrategy {
cacheDynamicVersionsFor 0, "seconds"
cacheChangingModulesFor 0, "seconds"
}
}
Zuul unable to route to application registered in eureka server
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<version>3.1.0</version>
</dependency>
server:
port: 8082
spring:
application:
name: gateway
cloud:
gateway:
discovery:
locator:
enabled: true
lower-case-service-id: true
routes:
- id: game
uri: lb://game
predicates:
- Path=/game/**
- id: trend
uri: lb://trend
predicates:
- Path=/trend/**
eureka:
client:
serviceURL:
defaultZone: http://localhost:8761/eureka
-----------------------
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-gateway</artifactId>
<version>3.1.0</version>
</dependency>
server:
port: 8082
spring:
application:
name: gateway
cloud:
gateway:
discovery:
locator:
enabled: true
lower-case-service-id: true
routes:
- id: game
uri: lb://game
predicates:
- Path=/game/**
- id: trend
uri: lb://trend
predicates:
- Path=/trend/**
eureka:
client:
serviceURL:
defaultZone: http://localhost:8761/eureka
Override Hysterix Logging
hystrix.command.default.execution.isolation.strategy=SEMAPHORE
How do you override the Hystrix configuration for OpenFeign?
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
final MyTargetClient myTargetClient = HystrixFeign.builder()
.setterFactory(hystrixConfigurationFactory)
.client(new OkHttpClient())
.encoder(new JacksonEncoder(objectMapper))
.decoder(new JacksonDecoder(objectMapper))
.target(new Target.HardCodedTarget<>(MyTargetClient.class, "customclientname", baseUrl))
/**
* Override Hystrix configuration for Feign targets.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@interface HystrixOverride {
int DEFAULT_EXECUTION_TIMEOUT = 2_000;
/**
* Execution timeout in milliseconds.
*/
int executionTimeout() default DEFAULT_EXECUTION_TIMEOUT;
}
interface MyTargetClient {
@HystrixOverride(executionTimeout = 10_000)
@RequestLine("GET /rest/{storeCode}/V1/products")
Products searchProducts(@Param("storeCode") String storeCode, @QueryMap Map<String, Object> queryMap);
@RequestLine("GET /rest/{storeCode}/V1/products/{sku}")
Product getProduct(@Param("storeCode") String storeCode, @Param("sku") String sku);
}
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure per-function Hystrix configuration by referencing annotations
final HystrixCommandProperties.Setter hystrixCommandProperties = HystrixCommandProperties.Setter();
final HystrixOverride hystrixOverride = method.getAnnotation(HystrixOverride.class);
final int executionTimeout = (hystrixOverride == null)
? HystrixOverride.DEFAULT_EXECUTION_TIMEOUT
: hystrixOverride.executionTimeout();
hystrixCommandProperties.withExecutionTimeoutInMilliseconds(executionTimeout);
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andCommandPropertiesDefaults(hystrixCommandProperties)
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
-----------------------
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
final MyTargetClient myTargetClient = HystrixFeign.builder()
.setterFactory(hystrixConfigurationFactory)
.client(new OkHttpClient())
.encoder(new JacksonEncoder(objectMapper))
.decoder(new JacksonDecoder(objectMapper))
.target(new Target.HardCodedTarget<>(MyTargetClient.class, "customclientname", baseUrl))
/**
* Override Hystrix configuration for Feign targets.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@interface HystrixOverride {
int DEFAULT_EXECUTION_TIMEOUT = 2_000;
/**
* Execution timeout in milliseconds.
*/
int executionTimeout() default DEFAULT_EXECUTION_TIMEOUT;
}
interface MyTargetClient {
@HystrixOverride(executionTimeout = 10_000)
@RequestLine("GET /rest/{storeCode}/V1/products")
Products searchProducts(@Param("storeCode") String storeCode, @QueryMap Map<String, Object> queryMap);
@RequestLine("GET /rest/{storeCode}/V1/products/{sku}")
Product getProduct(@Param("storeCode") String storeCode, @Param("sku") String sku);
}
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure per-function Hystrix configuration by referencing annotations
final HystrixCommandProperties.Setter hystrixCommandProperties = HystrixCommandProperties.Setter();
final HystrixOverride hystrixOverride = method.getAnnotation(HystrixOverride.class);
final int executionTimeout = (hystrixOverride == null)
? HystrixOverride.DEFAULT_EXECUTION_TIMEOUT
: hystrixOverride.executionTimeout();
hystrixCommandProperties.withExecutionTimeoutInMilliseconds(executionTimeout);
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andCommandPropertiesDefaults(hystrixCommandProperties)
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
-----------------------
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
final MyTargetClient myTargetClient = HystrixFeign.builder()
.setterFactory(hystrixConfigurationFactory)
.client(new OkHttpClient())
.encoder(new JacksonEncoder(objectMapper))
.decoder(new JacksonDecoder(objectMapper))
.target(new Target.HardCodedTarget<>(MyTargetClient.class, "customclientname", baseUrl))
/**
* Override Hystrix configuration for Feign targets.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@interface HystrixOverride {
int DEFAULT_EXECUTION_TIMEOUT = 2_000;
/**
* Execution timeout in milliseconds.
*/
int executionTimeout() default DEFAULT_EXECUTION_TIMEOUT;
}
interface MyTargetClient {
@HystrixOverride(executionTimeout = 10_000)
@RequestLine("GET /rest/{storeCode}/V1/products")
Products searchProducts(@Param("storeCode") String storeCode, @QueryMap Map<String, Object> queryMap);
@RequestLine("GET /rest/{storeCode}/V1/products/{sku}")
Product getProduct(@Param("storeCode") String storeCode, @Param("sku") String sku);
}
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure per-function Hystrix configuration by referencing annotations
final HystrixCommandProperties.Setter hystrixCommandProperties = HystrixCommandProperties.Setter();
final HystrixOverride hystrixOverride = method.getAnnotation(HystrixOverride.class);
final int executionTimeout = (hystrixOverride == null)
? HystrixOverride.DEFAULT_EXECUTION_TIMEOUT
: hystrixOverride.executionTimeout();
hystrixCommandProperties.withExecutionTimeoutInMilliseconds(executionTimeout);
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andCommandPropertiesDefaults(hystrixCommandProperties)
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
-----------------------
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
final MyTargetClient myTargetClient = HystrixFeign.builder()
.setterFactory(hystrixConfigurationFactory)
.client(new OkHttpClient())
.encoder(new JacksonEncoder(objectMapper))
.decoder(new JacksonDecoder(objectMapper))
.target(new Target.HardCodedTarget<>(MyTargetClient.class, "customclientname", baseUrl))
/**
* Override Hystrix configuration for Feign targets.
*/
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
@interface HystrixOverride {
int DEFAULT_EXECUTION_TIMEOUT = 2_000;
/**
* Execution timeout in milliseconds.
*/
int executionTimeout() default DEFAULT_EXECUTION_TIMEOUT;
}
interface MyTargetClient {
@HystrixOverride(executionTimeout = 10_000)
@RequestLine("GET /rest/{storeCode}/V1/products")
Products searchProducts(@Param("storeCode") String storeCode, @QueryMap Map<String, Object> queryMap);
@RequestLine("GET /rest/{storeCode}/V1/products/{sku}")
Product getProduct(@Param("storeCode") String storeCode, @Param("sku") String sku);
}
final SetterFactory hystrixConfigurationFactory = (target, method) -> {
final String groupKey = target.name();
final String commandKey = method.getAnnotation(RequestLine.class).value();
// Configure per-function Hystrix configuration by referencing annotations
final HystrixCommandProperties.Setter hystrixCommandProperties = HystrixCommandProperties.Setter();
final HystrixOverride hystrixOverride = method.getAnnotation(HystrixOverride.class);
final int executionTimeout = (hystrixOverride == null)
? HystrixOverride.DEFAULT_EXECUTION_TIMEOUT
: hystrixOverride.executionTimeout();
hystrixCommandProperties.withExecutionTimeoutInMilliseconds(executionTimeout);
// Configure default thread pool properties
final HystrixThreadPoolProperties.Setter hystrixThreadPoolProperties = HystrixThreadPoolProperties.Setter()
.withCoreSize(50)
.withMaximumSize(200)
.withAllowMaximumSizeToDivergeFromCoreSize(true);
return HystrixCommand.Setter
.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey))
.andCommandKey(HystrixCommandKey.Factory.asKey(commandKey))
.andCommandPropertiesDefaults(hystrixCommandProperties)
.andThreadPoolPropertiesDefaults(hystrixThreadPoolProperties);;
};
Error while starting Spring boot Eureka Client
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bootstrap</artifactId>
<version>3.0.1</version>
</dependency>
Couchbase N1QL Update complex-structured JSON document
SELECT
ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"miliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END AS events
FROM default AS d
WHERE .......
UPDATE default AS d
SET d = {"events": ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"milliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END
}
WHERE .......
SELECT (SELECT e.startupStep,
{e.duration.seconds, milliseconds} AS duration
FROM d.timeline.events AS e
LET milliseconds = e.duration.nanosconds/1000000
ORDER BY e.duration.seconds, milliseconds
) AS events
FROM default AS d
WHERE .......
-----------------------
SELECT
ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"miliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END AS events
FROM default AS d
WHERE .......
UPDATE default AS d
SET d = {"events": ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"milliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END
}
WHERE .......
SELECT (SELECT e.startupStep,
{e.duration.seconds, milliseconds} AS duration
FROM d.timeline.events AS e
LET milliseconds = e.duration.nanosconds/1000000
ORDER BY e.duration.seconds, milliseconds
) AS events
FROM default AS d
WHERE .......
-----------------------
SELECT
ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"miliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END AS events
FROM default AS d
WHERE .......
UPDATE default AS d
SET d = {"events": ARRAY {e.startupStep,
"duration":{e.duration.seconds,
"milliseconds": e.duration.nanosconds/1000000
}
}
FOR e IN d.timeline.events
END
}
WHERE .......
SELECT (SELECT e.startupStep,
{e.duration.seconds, milliseconds} AS duration
FROM d.timeline.events AS e
LET milliseconds = e.duration.nanosconds/1000000
ORDER BY e.duration.seconds, milliseconds
) AS events
FROM default AS d
WHERE .......
Issue with integration tests for openfeign with hystrix as circuit breaker and ribbon as load balancer
@BeforeEach
void addServiceInstance() {
DefaultServiceInstance defaultServiceInstance = new DefaultServiceInstance();
defaultServiceInstance.setServiceId("simple-helloworld-api");
defaultServiceInstance.setHost("localhost");
defaultServiceInstance.setPort(wireMockServer.port());
Map<String, List<DefaultServiceInstance>> instances = new HashMap<>();
instances.put("simple-helloworld-api", Collections.singletonList(defaultServiceInstance));
simpleDiscoveryProperties.setInstances(instances);
}
@AfterEach
void removeServiceInstance() {
simpleDiscoveryProperties.getInstances().clear();
}
How to bind c# dotnet core 3.1 microservice stream to turbine server stream
services.AddHystrixConfigStream(Configuration);
Jhipster Spring Boot 2 instances of a microservice on different databases
java -Dspring.profiles.active=dev -Dserver.port=7040 -jar microservice-0.0.1-SNAPSHOT.jar -Dspring-boot.run.arguments= --hazelcast.port=12741 --APP_INSTANCE_NAME=microservice --APP_NAME=Microservice --APP_CLIENT_NAME='MicroserviceApp' --mainflux.broker=10.172.192.26 --APP_SWAGGER_TITLE='Microservice API' --APP_SWAGGER_DESC='Microservice API documentation'
eureka:
client:
enabled: true
healthcheck:
enabled: true
fetch-registry: true
register-with-eureka: true
instance-info-replication-interval-seconds: 10
registry-fetch-interval-seconds: 10
instance:
appname: ${APP_INSTANCE_NAME:microservice}
instanceId: ${APP_INSTANCE_NAME:microservice}:${spring.application.instance-id:${random.value}}
lease-renewal-interval-in-seconds: 5
lease-expiration-duration-in-seconds: 10
status-page-url-path: ${management.endpoints.web.base-path}/info
health-check-url-path: ${management.endpoints.web.base-path}/health
metadata-map:
zone: primary # This is needed for the load balancer
profile: ${spring.profiles.active}
version: #project.version#
git-version: ${git.commit.id.describe:}
git-commit: ${git.commit.id.abbrev:}
git-branch: ${git.branch:}
...
...
...
-----------------------
java -Dspring.profiles.active=dev -Dserver.port=7040 -jar microservice-0.0.1-SNAPSHOT.jar -Dspring-boot.run.arguments= --hazelcast.port=12741 --APP_INSTANCE_NAME=microservice --APP_NAME=Microservice --APP_CLIENT_NAME='MicroserviceApp' --mainflux.broker=10.172.192.26 --APP_SWAGGER_TITLE='Microservice API' --APP_SWAGGER_DESC='Microservice API documentation'
eureka:
client:
enabled: true
healthcheck:
enabled: true
fetch-registry: true
register-with-eureka: true
instance-info-replication-interval-seconds: 10
registry-fetch-interval-seconds: 10
instance:
appname: ${APP_INSTANCE_NAME:microservice}
instanceId: ${APP_INSTANCE_NAME:microservice}:${spring.application.instance-id:${random.value}}
lease-renewal-interval-in-seconds: 5
lease-expiration-duration-in-seconds: 10
status-page-url-path: ${management.endpoints.web.base-path}/info
health-check-url-path: ${management.endpoints.web.base-path}/health
metadata-map:
zone: primary # This is needed for the load balancer
profile: ${spring.profiles.active}
version: #project.version#
git-version: ${git.commit.id.describe:}
git-commit: ${git.commit.id.abbrev:}
git-branch: ${git.branch:}
...
...
...
QUESTION
Can one setup Spring Boot 2.6 and Spring Cloud 2021.x to use Ribbon and Hystrix with Spring WebClient and Feign?
Asked 2022-Apr-12 at 10:13I know that Spring Cloud at some version (3.0?) dropped direct support for some Netflix libraries like Ribbon or Hystrix. Now I'm trying to make a smooth migration of around 20 microservices running on production having some custom code extending Ribbon (and Hystrix to a lesser degree). The main goal is to upgrade from Spring Boot 2.3 to 2.6. As a consequence I need to upgrade Spring Cloud to 3.1.x, right?
My guess was to proceed with 2-step upgrade to avoid a one big-step migration:
However to achieve this I'm trying to use simultanously Spring Boot 2.6, Spring Cloud with release train 2021.01 and 2 selected starters from older Spring Cloud (latest versions of these artifacts):
spring-cloud-starter-netflix-hystrix 2.2.10.RELEASE
spring-cloud-starter-netflix-ribbon 2.2.10.RELEASE
Is this possible at all? We are heavilly using Feign and Spring WebClient - client-side load-balancing must work for these. So far I found out Feign clients are not automatically integrated with Ribbon.
@spencergibb @OlgaMaciaszek - especially counting on you.
ANSWER
Answered 2022-Apr-12 at 10:13Answering my own question after receiving confirmation from Spring Cloud team by other means: this is a bad idea to try use Ribbon with Spring Cloud 2021.01 and it would require a really hard work to make it working.
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