Spring Boot中使用Feign调用时Hystrix提示异常:"could not be queued for execution and no fallback available."以及"Rejected command because thread-pool queueSize is at rejection threshold"
2017-12-22 11:20
1406 查看
说明:
1、我还没有真正理解Spring Cloud的精髓,现只停留在使用阶段,可能存在分析不到位的问题。
1、这个是由于线程池的最大数量导致的,官方说随着线程池的数量越大,资源开销也就越大,所以调整时要慎重。
2、Hystrix默认是10个线程,超过就会报这个异常。
解决方法:
说明:以上是YAML写法
参考:
http://blog.csdn.net/gisam/article/details/78028080
http://blog.csdn.net/u011742484/article/details/59524361
http://blog.csdn.net/chenpeng19910926/article/details/78295720?locationNum=2&fps=1
http://blog.csdn.net/w_x_z_/article/details/72222550
http://ju.outofmemory.cn/entry/68192
https://segmentfault.com/a/1190000009939815
http://tietang.wang/2016/02/25/hystrix/Hystrix%E5%8F%82%E6%95%B0%E8%AF%A6%E8%A7%A3/
https://github.com/Netflix/Hystrix/issues/1428
https://github.com/Netflix/Hystrix/wiki/Configuration#allowmaximumsizetodivergefromcoresize
1、我还没有真正理解Spring Cloud的精髓,现只停留在使用阶段,可能存在分析不到位的问题。
1、这个是由于线程池的最大数量导致的,官方说随着线程池的数量越大,资源开销也就越大,所以调整时要慎重。
2、Hystrix默认是10个线程,超过就会报这个异常。
解决方法:
hystrix: threadpool: default: coreSize: 200 ##并发执行的最大线程数,默认10 maxQueueSize: 200 ##BlockingQueue的最大队列数 queueSizeRejectionThreshold: 50 ##即使maxQueueSize没有达到,达到queueSizeRejectionThreshold该值后,请求也会被拒绝 default: execution: timeout: enabled: true isolation: strategy: THREAD semaphore: maxConcurrentRequests: 1000 thread: timeoutInMilliseconds: 30000
说明:以上是YAML写法
参考:
http://blog.csdn.net/gisam/article/details/78028080
http://blog.csdn.net/u011742484/article/details/59524361
http://blog.csdn.net/chenpeng19910926/article/details/78295720?locationNum=2&fps=1
http://blog.csdn.net/w_x_z_/article/details/72222550
http://ju.outofmemory.cn/entry/68192
https://segmentfault.com/a/1190000009939815
http://tietang.wang/2016/02/25/hystrix/Hystrix%E5%8F%82%E6%95%B0%E8%AF%A6%E8%A7%A3/
https://github.com/Netflix/Hystrix/issues/1428
https://github.com/Netflix/Hystrix/wiki/Configuration#allowmaximumsizetodivergefromcoresize
相关文章推荐
- 高并发下hystrix熔断超时及concurrent.RejectedExecutionException: Rejected command because thread-pool queueSize is at rejection threshold问题
- Spring Boot使用Feign客户端调用远程服务时出现:timed-out and no fallback available,failed and no fallback available的问题解决
- Spring @Validate 报 :"No validator could be found for type: java.lang.Long" 异常
- 严重: Could not find action or result There is no Action mapped for namespace / and action name login.
- Log4j使用教程 log4:WARN No appenders could be found for logger (org.springframework.web.context.ContextLoader).
- "Error: ANDROID_HOME is not set and "android" command not in your PATH. You must fulfill at least one of these conditions.".
- for pooled tables,cluster tables,and projection views,join is not allowed:"KONV"
- SharePoint 2013 搜索报错"Unable to retrieve topology component health. This may be because the admin component is not up and running"
- fix errors 1088: “Failed to execute request because the App-Domain could not be created. Error: 0x80070005 Access is denied” and 1334: “Exception: System.IO.FileLoadException”
- dhl:The request for security token could not be satisfied because authentication failed. 调用方未由服务进行身份验证。
- 使用用sudo时提示"### is not in the sudoers file. This incident will be reported.
- Solution For "could not be located or a different control is assigned to the same ID after postback"
- Visual Studio使用"go to definition"出现"A definition for the symbol '<symbolName>' could not be located
- spring解决"log4j:WARN No appenders could be found for logger"
- Struts2学习之package name="struts2"对应谁--There is no Action mapped for namespace / and action name 异常
- DomainU Fails to boot with "Error: Device 0 (vif) could not be connected. Could not find bridge, and none was specified"
- The operation could not be performedbecause OLE DB provider "SQLNCLI" for linked serve
- PowerShell: 如何解决File **.ps1 cannot be loaded because the execution of scripts is disabled on this system. Please see "get- help about_sig" for more de
- The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 010
- C++ - "No source available for "__chkstk_ms() at 0x401f0b"" 异常