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Hystrix | fault tolerance library designed to isolate points | Architecture library

 by   Netflix Java Version: v1.5.18 License: Apache-2.0

 by   Netflix Java Version: v1.5.18 License: Apache-2.0

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kandi X-RAY | Hystrix Summary

Hystrix is a Java library typically used in Architecture applications. Hystrix has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has medium support. You can download it from GitHub, Maven.
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.
Support
Support
Quality
Quality
Security
Security
License
License
Reuse
Reuse

kandi-support Support

  • Hystrix has a medium active ecosystem.
  • It has 21923 star(s) with 4457 fork(s). There are 1668 watchers for this library.
  • It had no major release in the last 12 months.
  • There are 339 open issues and 677 have been closed. On average issues are closed in 280 days. There are 48 open pull requests and 0 closed requests.
  • It has a neutral sentiment in the developer community.
  • The latest version of Hystrix is v1.5.18
Hystrix Support
Best in #Architecture
Average in #Architecture
Hystrix Support
Best in #Architecture
Average in #Architecture

quality kandi Quality

  • Hystrix has 0 bugs and 0 code smells.
Hystrix Quality
Best in #Architecture
Average in #Architecture
Hystrix Quality
Best in #Architecture
Average in #Architecture

securitySecurity

  • Hystrix has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
  • Hystrix code analysis shows 0 unresolved vulnerabilities.
  • There are 0 security hotspots that need review.
Hystrix Security
Best in #Architecture
Average in #Architecture
Hystrix Security
Best in #Architecture
Average in #Architecture

license License

  • Hystrix is licensed under the Apache-2.0 License. This license is Permissive.
  • Permissive licenses have the least restrictions, and you can use them in most projects.
Hystrix License
Best in #Architecture
Average in #Architecture
Hystrix License
Best in #Architecture
Average in #Architecture

buildReuse

  • Hystrix releases are available to install and integrate.
  • Deployable package is available in Maven.
  • Build file is available. You can build the component from source.
  • Installation instructions, examples and code snippets are available.
  • Hystrix saves you 43535 person hours of effort in developing the same functionality from scratch.
  • It has 51393 lines of code, 4306 functions and 439 files.
  • It has medium code complexity. Code complexity directly impacts maintainability of the code.
Hystrix Reuse
Best in #Architecture
Average in #Architecture
Hystrix Reuse
Best in #Architecture
Average in #Architecture
Top functions reviewed by kandi - BETA

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.

  • 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 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!

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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

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<dependency>
    <groupId>com.netflix.hystrix</groupId>
    <artifactId>hystrix-core</artifactId>
    <version>x.y.z</version>
</dependency>

Build

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$ git clone git@github.com:Netflix/Hystrix.git
$ cd Hystrix/
$ ./gradlew build

Run Demo

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$ 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

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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

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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

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        <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

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hystrix.command.default.execution.isolation.strategy=SEMAPHORE

How do you override the Hystrix configuration for OpenFeign?

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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

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<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

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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

copy iconCopydownload iconDownload
@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

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services.AddHystrixConfigStream(Configuration);

Jhipster Spring Boot 2 instances of a microservice on different databases

copy iconCopydownload iconDownload
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:}
...
...
...

Community Discussions

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Trending Discussions on Hystrix

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 10:13

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:

  1. Upgrade to Spring Boot 2.6 and Spring Cloud 3.1 while still using Ribbon and Hystrix
  2. 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 10:13

Answering 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.

Source https://stackoverflow.com/questions/71794854

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install Hystrix

Binaries and dependency information for Maven, Ivy, Gradle and others can be found at http://search.maven.org. Change history and version numbers => CHANGELOG.md.
Futher details on building can be found on the Getting Started page of the wiki.

Support

See the Wiki for full documentation, examples, operational details and other information. See the Javadoc for the API.

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