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Posted to commits@servicecomb.apache.org by GitBox <gi...@apache.org> on 2021/08/25 07:40:04 UTC
[GitHub] [servicecomb-java-chassis] diwenzheng opened a new issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
diwenzheng opened a new issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529
2021-08-25 08:23:22.473 - [ERROR] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.client.http.RestUtils] - [RestUtils.java:95] - GET /v4/default/registry/instances?rev=098714c3c29a8fde9ff7f36aa69045799053b65a&appId=redtea-es&global=true&serviceName=Alarm&env=development&version=0.0.0%2B fail, endpoint is 10.0.1.156:30100, message: Connection was closed
2021-08-25 08:23:22.474 - [WARN] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.c.h.ServiceRegistryClientImpl] - [ServiceRegistryClientImpl.java:110] - invoke service [/v4/default/registry/instances] failed, retry.
2021-08-25 08:27:22.474 - [ERROR] - [registry-vert.x-eventloop-thread-0] - [io.vertx.core.net.impl.ConnectionBase] - [ConnectionBase.java:216] - Connection reset by peer
2021-08-25 08:27:22.475 - [ERROR] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.client.http.RestUtils] - [RestUtils.java:95] - GET /v4/default/registry/instances?rev=098714c3c29a8fde9ff7f36aa69045799053b65a&appId=redtea-es&global=true&serviceName=Alarm&env=development&version=0.0.0%2B fail, endpoint is 10.0.1.47:30100, message: Connection reset by peer
2021-08-25 08:27:22.475 - [WARN] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.c.h.ServiceRegistryClientImpl] - [ServiceRegistryClientImpl.java:110] - invoke service [/v4/default/registry/instances] failed, retry.
2021-08-25 08:27:22.476 - [ERROR] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.client.http.RestUtils] - [RestUtils.java:95] - GET /v4/default/registry/instances?rev=098714c3c29a8fde9ff7f36aa69045799053b65a&appId=redtea-es&global=true&serviceName=Alarm&env=development&version=0.0.0%2B fail, endpoint is 10.0.1.47:30100, message: Connection was closed
2021-08-25 08:27:22.476 - [WARN] - [registry-vert.x-eventloop-thread-0] - [o.a.s.s.c.h.ServiceRegistryClientImpl] - [ServiceRegistryClientImpl.java:110] - invoke service [/v4/default/registry/instances] failed, retry.
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906021284
这是注册中心的日志 看着好像是 客户端连接断开? 默认心跳的 超时时间 是多少
2021-08-26T02:13:31.259Z INFO logutil/logger.go:48 transport: loopyWriter.run returning. connection error: desc = "transport is closing"
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rules/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/tags/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/schema-sum/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/pact-version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rule-indexes/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/verification/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/inst/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 wat
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-905264839
这种必定是可靠性隐患,考虑的后续实例数平滑扩容,注册中心是否会有性能瓶颈,有没有关于注册中心性能瓶颈的用例?又或者如何能优化这样的现象,还是说我们指定的注册中心ip,必须是像官方那样提供的配置多个注册中心的IP.
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906021284
这是注册中心的日志 看着好像是 客户端连接断开? 默认心跳的 超时时间 是多少
2021-08-26T02:13:31.259Z INFO logutil/logger.go:48 transport: loopyWriter.run returning. connection error: desc = "transport is closing"
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rules/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/tags/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/schema-sum/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/pact-version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rule-indexes/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/verification/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/inst/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 wat
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906025665
从官方配置文档中看到 默认读超时时间是 3000毫秒,所以有这样的日志 我可以理解为 心跳超时时间在3S的时候,注册中心会有读超时的可能,所以客户端中断连接,这个对吗？
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906037538
还有个疑问在service-center那边一直没人回复,https://github.com/apache/servicecomb-service-center/issues/1065,这个能麻烦帮忙解答下吗.
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906059688
> 建议你到 service-center 提一个问题咨询下， 我没法解答这块的技术问题。
好的感谢
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[GitHub] [servicecomb-java-chassis] diwenzheng closed issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng closed issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-905262409
微服务测配置的是60s,错误次数是6次,注册中心有三个副本,每个副本采用一个etcd,因部署方式是swarm的,所以我们在指定注册中心地址的地方指定的是对内的集群IP,目前实例数不是很多,大概20多个的微服务实例,发现不是很频发的打印这些日志
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906056682
目前是这样指定的。
etcd的部署方案
etcd 采用的是集群方案部署的.
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906056682
目前是这样指定的。
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906025665
从官方配置文档中看到 默认读超时时间是 3000毫秒,所以有这样的日志 我可以理解为 心跳超时时间在3S的时候,注册中心会有读超时的可能,所以客户端中断连接,这个对吗？
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906051188
还有这种日志 切换了注册中心了
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906056682
目前是这样指定的。
etcd的部署方案
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-905264839
这种必定是隐患,考虑的后续实例数平滑扩容,注册中心是否承载不住,有没有关于注册中心性能瓶颈的用例?又或者如何能优化
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906054642
目前我首先更改了,关于心跳的超时时间为12000,即12秒,至此来回观察服务,老的服务会间断性打印上述的连接失败拒绝等日志,更改心跳时间的至少目前我尚未看到,所以我个人建议是否可以考虑将默认参数的时间调高.
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[GitHub] [servicecomb-java-chassis] diwenzheng closed issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng closed issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906056222
所以是因为etcd连接不稳定导致的心跳时间到达客户端设置3秒,从而客户端断联？
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906051188
还有这种日志 切换了注册中心了.这种可以理解为vip的问题?。官方推荐的的部署注册中心的形态是什么样的.是否是1个注册中心对应一个etcd,然后总共部署三个这样的,随后在注册中心地址的地方,配上这三个注册中心的地址?我这样的vip形态是否推荐.
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[GitHub] [servicecomb-java-chassis] diwenzheng closed issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng closed issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906037538
还有个疑问在service-center那边一直没人回复, https://github.com/apache/servicecomb-service-center/issues/1065 ,这个能麻烦帮忙解答下吗.
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906059495
建议你到 service-center 提一个问题咨询下， 我没法解答这块的技术问题。
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-917783042
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906055021
看你上面提供的信息，更像是 service-center 和 ETCD 之间的连接问题导致的。
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[GitHub] [servicecomb-java-chassis] liubao68 commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
liubao68 commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906003804
单纯从日志内容判断， “Connection reset by peer” 一般表示的是服务端主动关闭连接，通常和网络、性能有关系。 由于你提供的信息有限，无法给出详细的建议。
从经验来说， service-center在实际系统中支撑过10000+的实例管理，所以你的管理规模是非常小的。尽管如此， 你们是自行组网和安装， 影响因素是不确定的。
service-center提供了REST API，如果你需要做性能测试，可以挑选其中的REST API进行测试。运行过程中， 包括你反馈的日志，只是发送心跳， 会调用心跳接口。
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906021284
2021-08-26T02:13:31.259Z INFO logutil/logger.go:48 transport: loopyWriter.run returning. connection error: desc = "transport is closing"
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rules/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/tags/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/schema-sum/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/pact-version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/version/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/rule-indexes/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-pact/verification/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/inst/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 watch prefix /cse-sr/ms/files/ failed, start rev: 231226+1->231226->0 {"error": "rpc error: code = Canceled desc = grpc: the client connection is closing"}
2021-08-26T02:13:31.259Z ERROR etcd/listwatch_inner.go:76 wat
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906011368
10000+那应该肯定没问题啊,可是这个日志 会周期性 在各个服务 打印,是否是我哪个参数设置不合理.还需要我提供什么相关信息.目前没想到有关的.
liubao68 ***@***.***> 于2021年8月26日周四 上午9:30写道：
> 单纯从日志内容判断， “Connection reset by peer” 一般表示的是服务端主动关闭连接，通常和网络、性能有关系。
> 由于你提供的信息有限，无法给出详细的建议。
>
> 从经验来说， service-center在实际系统中支撑过10000+的实例管理，所以你的管理规模是非常小的。尽管如此， 你们是自行组网和安装，
> 影响因素是不确定的。
>
> service-center提供了REST API，如果你需要做性能测试，可以挑选其中的REST API进行测试。运行过程中，
> 包括你反馈的日志，只是发送心跳， 会调用心跳接口。
>
> —
> You are receiving this because you authored the thread.
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-905270481
@liubao68
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[GitHub] [servicecomb-java-chassis] diwenzheng edited a comment on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng edited a comment on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-905262409
微服务测配置的是60s,错误次数是6次,注册中心有三个副本,每个副本采用一个etcd,因部署方式是swarm的,所以我们在指定注册中心地址的地方指定的是对内的集群VIP,可以理解成有三个注册中心然后外面有个nginx,服务内部配置的是nginx的ip.
目前实例数不是很多,大概20多个的微服务实例,发现不是很频发的打印这些日志.
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[GitHub] [servicecomb-java-chassis] diwenzheng commented on issue #2529: 关于微服务内部频繁打印与注册中心心跳错误的日志
Posted by GitBox <gi...@apache.org>.
diwenzheng commented on issue #2529:
URL: https://github.com/apache/servicecomb-java-chassis/issues/2529#issuecomment-906025665
![Uploading image.png…]()
从官方配置文档中看到 默认读超时时间是 3000毫秒,所以有这样的日志 我可以理解为 心跳超时时间在3S的时候,注册中心会有读超时的可能,所以客户端中断连接,这个对吗？
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