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alibaba / nacos

an easy-to-use dynamic service discovery, configuration and service management platform for building cloud native applications.
https://nacos.io
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the service checksum change frequently although all instances of the service have not changed healthy with heartbeat normal work. #3471

Closed meiliangdeng closed 4 years ago

meiliangdeng commented 4 years ago

Describe the bug the service checksum change frequently although all instances of the service have not changed healthy with heartbeat normal work. The following example is the information comparison of two change instances(instance info not change but the checksum value have change：'499925ce37e7aa744c154540072d8b27' to 'b96526021f21e2363ab2ee152f4b2d55'):

{"metadata":{},"dom":"mall-lgs-service","cacheMillis":3000,"useSpecifiedURL":false,"hosts":[{"valid":true,"marked":false,"metadata":{"nacosEnv":"grey","env":"pro"},"instanceId":"10.202.14.23#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.23","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.25#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.25","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.24#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.24","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true}],"name":"DEFAULT_GROUP@@mall-lgs-service","checksum":"499925ce37e7aa744c154540072d8b27","lastRefTime":1595969064691,"env":"","clusters":""}

{"metadata":{},"dom":"mall-lgs-service","cacheMillis":3000,"useSpecifiedURL":false,"hosts":[{"valid":true,"marked":false,"metadata":{"nacosEnv":"grey","env":"pro"},"instanceId":"10.202.14.23#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.23","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.25#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.25","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.24#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.24","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true}],"name":"DEFAULT_GROUP@@mall-lgs-service","checksum":"b96526021f21e2363ab2ee152f4b2d55","lastRefTime":1595969069723,"env":"","clusters":""}

Expected behavior if the service instance information does not change, it is expected that the checksum value will not be change

Acutally behavior the service checksum change frequently although all instances of the service have not changed healthy with heartbeat normal work.

How to Reproduce It only appears in some services , and there is no clear factor to reproduce it

Desktop (please complete the following information): OS: ubuntu 14.10 and mac and windows Version: [nacos-server 1.2.1, self custom php sdk with the Open-Api] Module: [naming feature] SDK: [self custom php sdk with the Open-Api]

KomachiSion commented 4 years ago

Please use issue template to describe your problem, otherwise it may be lark some important information.

KomachiSion commented 4 years ago

template:

Describe the bug A clear and concise description of what the bug is.

Expected behavior A clear and concise description of what you expected to happen.

Acutally behavior A clear and concise description of what you actually to happen.

How to Reproduce Steps to reproduce the behavior:

  1. Go to '...'
  2. Click on '....'
  3. Scroll down to '....'
  4. See error

Desktop (please complete the following information):

Additional context Add any other context about the problem here.

meiliangdeng commented 4 years ago

Describe the bug the service checksum change frequently although all instances of the service have not changed healthy with heartbeat normal work. The following example is the information comparison of two change instances(instance info not change but the checksum value have change：'499925ce37e7aa744c154540072d8b27' to 'b96526021f21e2363ab2ee152f4b2d55'):

{"metadata":{},"dom":"mall-lgs-service","cacheMillis":3000,"useSpecifiedURL":false,"hosts":[{"valid":true,"marked":false,"metadata":{"nacosEnv":"grey","env":"pro"},"instanceId":"10.202.14.23#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.23","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.25#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.25","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.24#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.24","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true}],"name":"DEFAULT_GROUP@@mall-lgs-service","checksum":"499925ce37e7aa744c154540072d8b27","lastRefTime":1595969064691,"env":"","clusters":""}

{"metadata":{},"dom":"mall-lgs-service","cacheMillis":3000,"useSpecifiedURL":false,"hosts":[{"valid":true,"marked":false,"metadata":{"nacosEnv":"grey","env":"pro"},"instanceId":"10.202.14.23#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.23","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.25#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.25","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true},{"valid":true,"marked":false,"metadata":{"nacosEnv":"default","env":"pro"},"instanceId":"10.202.14.24#19588#DEFAULT#DEFAULT_GROUP@@mall-lgs-service","port":19588,"healthy":true,"ip":"10.202.14.24","clusterName":"DEFAULT","weight":1.0,"ephemeral":true,"serviceName":"mall-lgs-service","enabled":true}],"name":"DEFAULT_GROUP@@mall-lgs-service","checksum":"b96526021f21e2363ab2ee152f4b2d55","lastRefTime":1595969069723,"env":"","clusters":""}

Expected behavior if the service instance information does not change, it is expected that the checksum value will not be change

Acutally behavior the service checksum change frequently although all instances of the service have not changed healthy with heartbeat normal work.

How to Reproduce It only appears in some services , and there is no clear factor to reproduce it

Desktop (please complete the following information): OS: ubuntu 14.10 and mac and windows Version: [nacos-server 1.2.1, self custom php sdk with the Open-Api] Module: [naming feature] SDK [self custom php sdk with the Open-Api] Additional context null