网飞丝带和Hystrix超时

Question

我们在项目中使用Spring cloud。我们有几个微服务，每个服务都有自己的。yml文件。

以下属性仅在zuul服务器中

hystrix.command.default.execution.isolation.thread.timeoutInMilliseconds: 60000

    ribbon: 
     ConnectTimeout: 3000
     ReadTimeout: 60000

@RequestMapping(value = "/accountholders/{cardHolderId}/accounts", produces = "application/json; charset=utf-8", method = RequestMethod.GET)
    @ResponseBody
    public AllAccountsVO getAccounts(@PathVariable("cardHolderId") final String cardHolderId,
            @RequestHeader("userContextId") final String userContextId,
            @RequestParam final MultiValueMap<String, String> allRequestParams, final HttpServletRequest request) {

        return iAccountService.getCardHolderAccountsInfo(cardHolderId, userContextId, request, allRequestParams,
                ApplicationConstants.ACCOUNTHOLDER);
    }

@RequestMapping(value = "/internal/userassociationstatus", produces = "application/json; charset=utf-8", consumes = "application/json", method = RequestMethod.GET)
    @ResponseBody
    public UserAssociationStatusVO getUserAssociationStatus(@RequestParam final Map<String, String> allRequestParams) {
        try {
            Thread.sleep(5000);
        } catch (InterruptedException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        return iUserAssociationsService.getUserAssociationStatus(allRequestParams);
    }

下面是我在关联服务中得到的错误

org.apache.catalina.connector.ClientAbortException: java.io.IOException: An established connection was aborted by the software in your host machine
at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:393) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:426) ~[tomcat-embed-core-8.0.30.jar:8.0.30]
at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:342) ~[tomcat-embed-core-8.0.30.jar:8.0.30]

以下是我在帐户服务中得到的错误

org.springframework.web.client.ResourceAccessException: I/O error on GET request for "http://USERASSOCIATIONS-V1/user/v1/internal/userassociationstatus?cardholderid=123&usercontextid=222&role=ACCOUNT": com.sun.jersey.api.client.ClientHandlerException: java.net.SocketTimeoutException: Read timed out; nested exception is java.io.IOException: com.sun.jersey.api.client.ClientHandlerException: java.net.SocketTimeoutException: Read timed out
    at org.springframework.web.client.RestTemplate.doExecute(RestTemplate.java:607) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.client.RestTemplate.execute(RestTemplate.java:557) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]
    at org.springframework.web.client.RestTemplate.exchange(RestTemplate.java:475) ~[spring-web-4.2.4.RELEASE.jar:4.2.4.RELEASE]

如果我保持睡眠时间为4500，它会给我响应，但如果是>=4800，它会抛出上面的异常。我想这与功能区超时无关，而是其他一些东西。任何特定原因导致上述异常后的某一点。

测试2

@RequestMapping(value = "/accountholders/{cardHolderId}/accounts", produces = "application/json; charset=utf-8", method = RequestMethod.GET)
    @ResponseBody
    public AllAccountsVO getAccounts(@PathVariable("cardHolderId") final String cardHolderId,
            @RequestHeader("userContextId") final String userContextId,
            @RequestParam final MultiValueMap<String, String> allRequestParams, final HttpServletRequest request) {

        try {
            Thread.sleep(75000);
        } catch (InterruptedException ex) {
            // TODO Auto-generated catch block
            ex.printStackTrace();
        }
        return iAccountService.getCardHolderAccountsInfo(cardHolderId, userContextId, request, allRequestParams,
                ApplicationConstants.ACCOUNTHOLDER);
    }

com.netflix.zuul.exception.ZuulException: Forwarding error
    at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.forward(RibbonRoutingFilter.java:134) ~[spring-cloud-netflix-core-1.1.0.M5.jar:1.1.0.M5]
    at org.springframework.cloud.netflix.zuul.filters.route.RibbonRoutingFilter.run(RibbonRoutingFilter.java:76) ~[spring-cloud-netflix-core-1.1.0.M5.jar:1.1.0.M5]
    at com.netflix.zuul.ZuulFilter.runFilter(ZuulFilter.java:112) ~[zuul-core-1.1.0.jar:1.1.0]
    at com.netflix.zuul.FilterProcessor.processZuulFilter(FilterProcessor.java:197) ~[zuul-core-1.1.0.jar:1.1.0]


Caused by: com.netflix.hystrix.exception.HystrixRuntimeException: useraccounts-v1RibbonCommand timed-out and no fallback available.
    at com.netflix.hystrix.AbstractCommand$16.call(AbstractCommand.java:806) ~[hystrix-core-1.4.23.jar:1.4.23]
    at com.netflix.hystrix.AbstractCommand$16.call(AbstractCommand.java:790) ~[hystrix-core-1.4.23.jar:1.4.23]
    at rx.internal.operators.OperatorOnErrorResumeNextViaFunction$1.onError(OperatorOnErrorResumeNextViaFunction.java:99) ~[rxjava-1.0.14.jar:1.0.14]
    at rx.internal.operators.OperatorDoOnEach$1.onError(OperatorDoOnEach.java:70) ~[rxjava-1.0.14.jar:1.0.14]

（这是一个很长的描述，但为了使它更清楚，我不得不写得更详细。）

Answer 1

功能区中的ConnectTimeout和ReadTimeout被传递到底层HTTP客户端。它们应用于HTTP连接（而不是建立连接后的HTTP请求）。我不知道为什么您需要像这样测试它，但对于一个健康的服务器来说，这将是很难的。例如，对于ConnectTimeout，您需要一个可以接受TCP连接但不能完成HTTP层连接的连接。对于readtimeout，您需要一个建立连接但不发送任何数据的连接。