Hystrix | fault tolerance library designed to isolate points | Architecture library
kandi X-RAY | Hystrix Summary
Support
Quality
Security
License
Reuse
- Serialize command metrics .
- Initialize metrics .
- Executes a fallback or throws an exception
- Returns the current bucket .
- Executes the batch if not already started .
- Gets the executed commands as a string .
- Configures the servo monitors .
- Adds the command to the queue .
- Perform a new update .
- Gets information about method signature .
Hystrix Key Features
Hystrix Examples and Code Snippets
@PostConstruct private void setup() { this.config = HystrixCommand.Setter.withGroupKey(HystrixCommandGroupKey.Factory.asKey(groupKey)); this.config = config.andCommandKey(HystrixCommandKey.Factory.asKey(key)); this.commandProperties = HystrixCommandProperties.Setter(); this.commandProperties.withExecutionTimeoutInMilliseconds(executionTimeout); this.commandProperties.withCircuitBreakerSleepWindowInMilliseconds(sleepWindow); this.threadPoolProperties = HystrixThreadPoolProperties.Setter(); this.threadPoolProperties.withMaxQueueSize(maxThreadCount).withCoreSize(coreThreadCount).withMaxQueueSize(queueCount); this.config.andCommandPropertiesDefaults(commandProperties); this.config.andThreadPoolPropertiesDefaults(threadPoolProperties); }
@Bean @Primary @Order(value=Ordered.HIGHEST_PRECEDENCE) public HystrixCommandAspect hystrixAspect() { return new HystrixCommandAspect(); }
Trending Discussions on Hystrix
Trending Discussions on Hystrix
QUESTION
I 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:
- Upgrade to Spring Boot 2.6 and Spring Cloud 3.1 while still using Ribbon and Hystrix
- Make a way through a jungle of an old code and getting rid of Ribbon and Hystrix in smaller increments.
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.
QUESTION
I have this gradle configuration with the following dependencies:
plugins {
id 'org.springframework.boot' version '2.6.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
}
group = '......'
version = '0.0.1'
sourceCompatibility = '11'
ext {
set('springCloudVersion', "2021.0.1")
}
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter-web'
implementation 'org.springframework.cloud:spring-cloud-starter-openfeign'
implementation 'org.springframework.cloud:spring-cloud-starter-loadbalancer'
implementation 'org.codehaus.jettison:jettison:1.4.1'
implementation 'com.netflix.eureka:eureka-core'
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
implementation 'org.springframework.boot:spring-boot-starter-validation'
implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
implementation 'javax.validation:validation-api'
implementation 'org.hibernate.validator:hibernate-validator'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
implementation 'org.threeten:threetenbp:1.5.1'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
implementation 'joda-time:joda-time:2.10.13'
implementation 'org.springframework.security:spring-security-core'
implementation 'org.apache.commons:commons-lang3:3.8.1'
implementation 'org.apache.commons:commons-collections4:4.4'
implementation 'org.json:json:20211205'
implementation 'org.springframework.boot:spring-boot-starter-hateoas'
implementation 'com.fasterxml.jackson.datatype:jackson-datatype-joda:2.13.1'
implementation 'org.springframework.amqp:spring-amqp'
implementation 'org.springframework.amqp:spring-rabbit'
implementation 'io.jsonwebtoken:jjwt:0.9.1'
implementation 'org.parboiled:parboiled-core:1.4.0'
implementation 'commons-validator:commons-validator:1.7'
implementation 'com.google.code.gson:gson:2.9.0'
implementation 'org.springframework:spring-oxm'
implementation 'org.springframework.ws:spring-ws-core'
compileOnly 'org.projectlombok:lombok:1.18.22'
annotationProcessor 'org.projectlombok:lombok:1.18.22'
testCompileOnly 'org.projectlombok:lombok:1.18.22'
testAnnotationProcessor 'org.projectlombok:lombok:1.18.22'
runtimeOnly 'org.postgresql:postgresql'
implementation group: 'io.springfox', name: 'springfox-boot-starter', version: '3.0.0'
implementation 'org.liquibase:liquibase-core'
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
}
}
test {
useJUnitPlatform()
}
When I start the application I get this error:
Caused by: java.io.FileNotFoundException: class path resource [org/springframework/boot/autoconfigure/web/ServerPropertiesAutoConfiguration.class] cannot be opened because it does not exist
Do you know what dependency should be added or some dependency is missing?
P.S
The problem comes form this dependency:
implementation 'org.springframework.cloud:spring-cloud-starter-hystrix:1.4.7.RELEASE'
implementation group: 'com.netflix.hystrix', name: 'hystrix-core', version: '1.5.18'
Do you know how I can fix it?
ANSWER
Answered 2022-Mar-13 at 15:12I think you question has been already answered; please, consider review this SO question.
You need to include the following dependency:
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix:2.2.10.RELEASE'
Because you are using Spring BOM maybe this will be enough:
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-hystrix'
QUESTION
I want to create one main Gradle project which hosts all project dependencies:
Main Gradle project:
plugins {
id 'org.springframework.boot' version '2.6.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
id 'maven-publish'
}
group = 'com.parent.dependencies'
version = '0.0.1'
sourceCompatibility = '11'
ext {
set('springCloudVersion', "2021.0.1")
artifactory_contextUrl = "http://192.168.1.112/repository"
}
repositories {
mavenCentral()
maven {
url "${artifactory_contextUrl}/plugins-release"
allowInsecureProtocol = true
}
}
dependencies {
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
implementation 'org.springframework.boot:spring-boot-starter-validation'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
implementation 'org.threeten:threetenbp:1.5.1'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
// Lombok
compileOnly 'org.projectlombok:lombok:1.18.22'
annotationProcessor 'org.projectlombok:lombok:1.18.22'
testCompileOnly 'org.projectlombok:lombok:1.18.22'
testAnnotationProcessor 'org.projectlombok:lombok:1.18.22'
// Swagger
implementation group: 'io.springfox', name: 'springfox-boot-starter', version: '3.0.0'
implementation 'org.springframework.boot:spring-boot-starter-hateoas:2.6.3'
implementation group: 'com.netflix.hystrix', name: 'hystrix-core', version: '1.5.18'
implementation group: 'org.springframework.security', name: 'spring-security-core', version: '5.6.1'
testImplementation 'org.junit.jupiter:junit-jupiter-api:5.8.2'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine:5.8.2'
}
dependencyManagement {
imports {
mavenBom "org.springframework.cloud:spring-cloud-dependencies:${springCloudVersion}"
}
resolutionStrategy {
cacheDynamicVersionsFor 0, "seconds"
cacheChangingModulesFor 0, "seconds"
}
}
bootJar {
enabled = false
}
publishing {
publications {
mavenJava(MavenPublication) {
from components.java
}
}
repositories {
mavenLocal()
}
}
test {
useJUnitPlatform()
}
Sub project which will read all dependencies versions from parent Gradle project:
plugins {
id 'org.springframework.boot' version '2.6.4'
id 'io.spring.dependency-management' version '1.0.11.RELEASE'
id 'java'
id 'maven-publish'
}
group = 'com.child'
version = '0.0.1'
sourceCompatibility = '11'
ext {
artifactory_contextUrl = "http://192.168.1.112/repository"
}
repositories {
mavenCentral()
maven {
url "${artifactory_contextUrl}/plugins-release"
allowInsecureProtocol = true
}
}
dependencies {
implementation 'org.springframework.cloud:spring-cloud-starter-netflix-eureka-client'
implementation 'org.springframework.boot:spring-boot-starter-validation'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
implementation 'org.threeten:threetenbp'
implementation 'org.springframework.boot:spring-boot-starter-actuator'
// Lombok
compileOnly 'org.projectlombok:lombok'
annotationProcessor 'org.projectlombok:lombok'
testCompileOnly 'org.projectlombok:lombok'
testAnnotationProcessor 'org.projectlombok:lombok'
// Swagger
implementation 'io.springfox:springfox-boot-starter'
implementation 'org.springframework.boot:spring-boot-starter-hateoas'
implementation 'com.netflix.hystrix:hystrix-core'
implementation 'org.springframework.security:spring-security-core'
testImplementation 'org.junit.jupiter:junit-jupiter-api'
testRuntimeOnly 'org.junit.jupiter:junit-jupiter-engine'
}
dependencyManagement {
imports {
mavenBom "com.parent:com-parent-dependencies:0.0.1"
}
}
bootJar {
enabled = false
}
publishing {
publications {
mavenJava(MavenPublication) {
from components.java
}
}
repositories {
mavenLocal()
}
}
test {
useJUnitPlatform()
}
When I try to compile the child project I get error:
Execution failed for task ':compileJava'.
> Could not resolve all files for configuration ':compileClasspath'.
> Could not find org.threeten:threetenbp:.
Required by:
project :
> Could not find io.springfox:springfox-boot-starter:.
Required by:
project :
> Could not find com.netflix.hystrix:hystrix-core:.
Required by:
project :
Do you know how I can define properly the parent Gradle project with all dependencies versions and use the child project without defining dependencies versions?
ANSWER
Answered 2022-Mar-06 at 15:36There’s a relatively new Gradle feature called “version catalogs”. With those you can centrally declare dependencies that you’d like to share between multiple projects of your build (or even between different builds).
In your concrete example, you’d add something like the following to your settings.gradle
file:
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')
}
}
}
Then, in both build.gradle
files, you’d replace your dependencies
blocks with the following:
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
}
As you’re using a Maven BOM for Spring, you’ll also have to use the following updated dependencyManagement
block in all projects:
dependencyManagement {
imports {
mavenBom libs.spring.cloud.bom.get().toString()
}
resolutionStrategy {
cacheDynamicVersionsFor 0, "seconds"
cacheChangingModulesFor 0, "seconds"
}
}
That should be it. I could successfully test your sample build configurations with my updates at least on Gradle 7.4.
QUESTION
I am developing a Microservice were I am trying to use the Zuul proxy to route through the services. But for some reason Zuul unable to route to the app registered in eureka. I have tried increasing hystrix and Zuul timeout but nothing working
Exception Thrown
com.netflix.zuul.exception.ZuulException: Forwarding error at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.handleException(RibbonRoutingFilter.java:198) ~[spring-cloud-netflix-zuul-2.2.10.RELEASE.jar:2.2.10.RELEASE]
Zuul application.yml
server:
port: 8082
spring:
application:
name: gateway
eureka:
client:
register-with-eureka: true
fetch-registry: true
serviceUrl:
defaultZone: ${EUREKA_URI:http://localhost:8761/eureka}
instance:
hostname: localhost
ribbon:
eureka:
enabled: true
zuul:
ignoredServices: "*"
host:
connect-timeout-millis: 5000000
socket-timeout-millis: 5000000
prefix: /api
routes:
game:
path: /game/**
serviceId: game
trend:
path: /trend/**
serviceId: trend
ANSWER
Answered 2022-Feb-20 at 18:48After Some research I found that Ribbon, Zuul are in maintenance mode and we won't get any new version and spring also came up with alternative for Ribbon, Zuul etc. Please refer this link for spring alternative for load balancing, proxy server etc
And for this issue I used spring cloud gateway instead of Zuul which is the alternative provided by spring
Required Dependency
org.springframework.cloud
spring-cloud-starter-gateway
3.1.0
Now the application yml of proxy server looks like
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
QUESTION
I am trying to understand the logs generated by SpringBoot before and after implementing Hysterix Circuit Breaker
Before Hystrix the logs looked like,
17:31:35.977 [http-nio-8080-exec-2] [TransID:bcc8a9e9-41b7-47c8-9eb1-0f8becb42f68] INFO c.f.e.common.logging.MethodLogging - Entered Class: class com.org.myapp.service.MyService, Method: getData, Arguments: 123456
After implementing Hystrix the logs looks like,
17:21:23.197 [hystrix-MyController-1] [TransID:] INFO c.f.e.common.logging.MethodLogging - Entered Class: class com.org.myapp.service.MyService, Method: getData, Arguments: 123456
So, how did http-nio-8080-exec-2
get replaced with hystrix-OrchestratorController-1
, and why it's not showing my TransactionId
when Hystrix got implemented. How did Hystrix take over the logging? What's the difference between both? Is there any way to revert back to my old logging format? I tried hystrix.command.default.requestLog.enabled=false
in my application.properties, but no luck.
Main class
@SpringBootApplication
@EnableCircuitBreaker
class MyApp{
}
RestController
@GetMapping("...")
@HystrixCommand(commandKey="data")
public Object getData(){
}
application.properties
hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds=5000
ANSWER
Answered 2021-Dec-10 at 15:21Hystrix is using its own thread instead of the local thread. That's the reason your log looks different.
Add this property in your application.properties
hystrix.command.default.execution.isolation.strategy=SEMAPHORE
Now hystrix will use your local thread.
QUESTION
I am using HBase client Hbase client 1.4.13 (the issue was there in 1.4.10 as well). One host randomly starts misbehaving and does not return data from hbase. I took the thread dump and many threads are stuck in
stackTrace:
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.waitUntilDone(AsyncProcess.java:1767)
- locked <0x000000043b004280> (a java.util.concurrent.atomic.AtomicLong)
at org.apache.hadoop.hbase.client.AsyncProcess$AsyncRequestFutureImpl.waitUntilDone(AsyncProcess.java:1733)
at org.apache.hadoop.hbase.client.HTable.batch(HTable.java:906)
at org.apache.hadoop.hbase.client.HTable.existsAll(HTable.java:1440)
at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:302)
at com.netflix.hystrix.HystrixCommand$2.call(HystrixCommand.java:298)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:46)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10151)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:51)
at rx.internal.operators.OnSubscribeDefer.call(OnSubscribeDefer.java:35)
at rx.Observable.unsafeSubscribe(Observable.java:10151)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:41)
at rx.internal.operators.OnSubscribeDoOnEach.call(OnSubscribeDoOnEach.java:30)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:48)
at rx.internal.operators.OnSubscribeLift.call(OnSubscribeLift.java:30)
at rx.Observable.unsafeSubscribe(Observable.java:10151)
at rx.internal.operators.OperatorSubscribeOn$1.call(OperatorSubscribeOn.java:94)
at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction$1.call(HystrixContexSchedulerAction.java:56)
at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction$1.call(HystrixContexSchedulerAction.java:47)
at com.netflix.hystrix.strategy.concurrency.HystrixContexSchedulerAction.call(HystrixContexSchedulerAction.java:69)
at rx.internal.schedulers.ScheduledAction.run(ScheduledAction.java:55)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
I check connection stats using netstat, all the hbase connections were in ESTABLISHED state. The source code is available here. Hbase server is 2.X
ANSWER
Answered 2021-Nov-18 at 06:10we were not setting HBASE_CLIENT_IPC_POOL_SIZE, by default it was 1.
After setting it to 3, we did not see the issue anymore.
QUESTION
I'm trying to build a microservice application which will be using Hystrix and some distributed tracing from Spring Cloud. When i tried using Spring Cloud version '2021.0.0-M3' for the Spring boot version '2.5.5' I get below error while startup:
***Your project setup is incompatible with our requirements due to following reasons:
- Spring Boot [2.5.5] is not compatible with this Spring Cloud release train***
Is there a compatibility matrix between spring boot and Spring Cloud.
ANSWER
Answered 2021-Nov-01 at 14:02Spring Cloud Release mapping with Spring Boot compatibility:
- 2020.0.x aka Ilford ----> Spring Boot 2.4.x, 2.5.x (Starting with 2020.0.3)
- Hoxton ----> Spring Boot 2.2.x, 2.3.x (Starting with SR5)
- Greenwich ----> Spring Boot 2.1.x
- Finchley ----> Spring Boot 2.0.x
- Edgware ----> Spring Boot 1.5.x
- Dalston ----> Spring Boot 1.5.x
Source: documentation link
QUESTION
How do you override the Hystrix default configuration for OpenFeign? Most of the documentation out there is for SpringBoot + OpenFeign, which has its own Spring-specific configuration override system.
Ideally it would be possible to configure the Hystrix core size for the client and configure and timeouts on a per endpoint basis.
ANSWER
Answered 2021-Sep-15 at 20:40Hystrix OpenFeign has a setterFactory()
method on the builder that allows you to pass in a SetterFactory lambda function that is executed when setting up each target endpoint:
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))
The above example uses boilerplate from the OpenFeign documentation to properly name Hystrix keys based on the target endpoint function. It then goes further by also configuring the default thread pool property core size and maximum core size as a default for all of the target functions.
However, since this factory is called for each target endpoint, we can actually override the Hystrix configuration on a per endpoint basis. A use good case for this is Hystrix timeouts: sometimes there are endpoints that take longer than others and we need to account for that.
The easiest way would be to first create an annotation and place it on the target endpoints that need to be overridden:
/**
* 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 queryMap);
@RequestLine("GET /rest/{storeCode}/V1/products/{sku}")
Product getProduct(@Param("storeCode") String storeCode, @Param("sku") String sku);
}
In the above example, the search API might take a little longer to load so we have an override for that.
Just putting the override annotation on the target endpoint function is not enough though. We need to go back to our factory and update it to use the data in the annotations:
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);;
};
The above checks that an override annotation exists and then uses the data in that annotation to configure the execution timeout for that target endpoint. If the override is not present, the default for the HystrixOverride endpoint will be used instead. The resulting hystrixCommandProperties
variable is then plugged in to the overall HystrixCommand.Setter
at the end.
QUESTION
I have
@FeignClient(name="verbservice", fallback = VerbClientFallback.class)
public interface VerbClient {
@GetMapping
public String getVerbWord();
}
and
@Component
public class VerbClientFallback implements VerbClient {
@Override
public String getVerbWord() {
return "fallback";
}
}
App
@SpringBootApplication
@EnableDiscoveryClient
@EnableFeignClients
@EnableHystrix
public class SentenceAppApplication {
...}
Controller
@Autowired
private VerbClient verbClient;
....
return verbClient.getVerbWord() + ....other;
application.properties
feign.hystrix.enabled=true
Versions
Spring boot 2.5.4
11
2020.0.3
Goal: stop the verb service and see if fallback is invoked or not.
Problem:
nested exception is feign.RetryableException: Connection refused: no further information executing GET http://verbservice] with root cause
I tried steps in this link...but it is not working Feign Hystrix fallback not working
ANSWER
Answered 2021-Sep-11 at 13:49It seems the property
feign.hystrix.enabled=true
is changed to
feign.circuitbreaker.enabled=true
QUESTION
I created a spring boot
microservice, that is a Eureka Client
, this client has a discovery server. When I start the Discovery server application and then start this application, I get the following error:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@579bb367]
Pasting the trace and pom.xml below, please help me find the resolution.
Error starting ApplicationContext. To display the conditions report re-run your application with 'debug' enabled.
2021-08-07 22:13:19.311 ERROR 1620 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@579bb367]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:579) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63) ~[spring-boot-2.5.0.jar:2.5.0]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:373) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:331) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325) ~[spring-boot-2.5.0.jar:2.5.0]
at com.example.moviecatalogservice.MovieCatalogServiceApplication.main(MovieCatalogServiceApplication.java:28) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.0.jar:2.5.0]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@579bb367]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.7.jar:5.3.7]
at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:232) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:210) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:149) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:294) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1098) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576) ~[spring-beans-5.3.7.jar:5.3.7]
... 35 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3334) ~[na:na]
at java.base/java.lang.Class.getDeclaredMethods(Class.java:2446) ~[na:na]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.7.jar:5.3.7]
... 42 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[na:na]
... 46 common frames omitted
2021-08-07 22:13:19.314 ERROR 1620 --- [ restartedMain] o.s.boot.SpringApplication : Application run failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'configurationPropertiesBeans' defined in class path resource [org/springframework/cloud/autoconfigure/ConfigurationPropertiesRebinderAutoConfiguration.class]: Post-processing of merged bean definition failed; nested exception is java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@579bb367]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:579) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:524) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:213) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.support.PostProcessorRegistrationDelegate.registerBeanPostProcessors(PostProcessorRegistrationDelegate.java:270) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.registerBeanPostProcessors(AbstractApplicationContext.java:762) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:567) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:758) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:438) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.builder.SpringApplicationBuilder.run(SpringApplicationBuilder.java:144) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.bootstrapServiceContext(BootstrapApplicationListener.java:212) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:117) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.cloud.bootstrap.BootstrapApplicationListener.onApplicationEvent(BootstrapApplicationListener.java:74) ~[spring-cloud-context-2.2.9.RELEASE.jar:2.2.9.RELEASE]
at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:176) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:169) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:143) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:131) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:82) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:63) ~[spring-boot-2.5.0.jar:2.5.0]
at java.base/java.util.ArrayList.forEach(ArrayList.java:1511) ~[na:na]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:117) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:111) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:62) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:373) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:331) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1336) ~[spring-boot-2.5.0.jar:2.5.0]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:1325) ~[spring-boot-2.5.0.jar:2.5.0]
at com.example.moviecatalogservice.MovieCatalogServiceApplication.main(MovieCatalogServiceApplication.java:28) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:78) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:567) ~[na:na]
at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) ~[spring-boot-devtools-2.5.0.jar:2.5.0]
Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.cloud.context.properties.ConfigurationPropertiesBeans] from ClassLoader [jdk.internal.loader.ClassLoaders$AppClassLoader@579bb367]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:481) ~[spring-core-5.3.7.jar:5.3.7]
at org.springframework.util.ReflectionUtils.doWithLocalMethods(ReflectionUtils.java:321) ~[spring-core-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.buildLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:232) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.findLifecycleMetadata(InitDestroyAnnotationBeanPostProcessor.java:210) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.annotation.InitDestroyAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(InitDestroyAnnotationBeanPostProcessor.java:149) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.context.annotation.CommonAnnotationBeanPostProcessor.postProcessMergedBeanDefinition(CommonAnnotationBeanPostProcessor.java:294) ~[spring-context-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyMergedBeanDefinitionPostProcessors(AbstractAutowireCapableBeanFactory.java:1098) ~[spring-beans-5.3.7.jar:5.3.7]
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:576) ~[spring-beans-5.3.7.jar:5.3.7]
... 35 common frames omitted
Caused by: java.lang.NoClassDefFoundError: org/springframework/boot/context/properties/ConfigurationBeanFactoryMetadata
at java.base/java.lang.Class.getDeclaredMethods0(Native Method) ~[na:na]
at java.base/java.lang.Class.privateGetDeclaredMethods(Class.java:3334) ~[na:na]
at java.base/java.lang.Class.getDeclaredMethods(Class.java:2446) ~[na:na]
at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:463) ~[spring-core-5.3.7.jar:5.3.7]
... 42 common frames omitted
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.context.properties.ConfigurationBeanFactoryMetadata
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636) ~[na:na]
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182) ~[na:na]
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519) ~[na:na]
... 46 common frames omitted
POM.XML
11
Greenwich.RELEASE
org.springframework.boot
spring-boot-starter-web
org.springframework.boot
spring-boot-devtools
org.springframework.boot
spring-boot-starter-test
test
org.springframework.cloud
spring-cloud-starter-netflix-hystrix
2.2.9.RELEASE
org.springframework.cloud
spring-cloud-starter-netflix-eureka-client
3.0.2
org.springframework.boot
spring-boot-maven-plugin
spring-milestones
Spring Milestones
https://repo.spring.io/milestone
ANSWER
Answered 2021-Aug-07 at 20:05Try adding this dependency to resolve it and pick the right version of it.
org.springframework.cloud
spring-cloud-starter-bootstrap
3.0.1
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Hystrix
Futher details on building can be found on the Getting Started page of the wiki.
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