Bluemix node.js app sends 502 Bad Gateway responses during the push of a new app

Question

I am pushing a node.js app to IBM Bluemix by using the blue-to-green pattern.

Basically my Jenkins job is doing the following steps:

• upload the new app: cf push my-app-tmp -f cf/manifest-my-app.yml -n my-app-tmp
• add the app to the loadbalancer: cf map-route my-app-tmp mybluemix.net -n my-app
• delete the old app: cf delete my-app -f
• rename the new app to the old name: cf rename my-app-tmp my-app
• remove the old route: cf unmap-route my-app mybluemix.net -n my-app-tmp

During this process my app is sometimes returning 502 Bad Gateway. It seems to be a problem with the loadbalancer for me, any ideas?

Answer 1

再次检查模式： http://docs.pivotal.io/pivotalcf/devguide/deploy-apps/blue-green.html

删除时，您仍然可以找到正在运行的旧应用的地图。路由器可能会向它发送请求，直到它发现旧应用程序被销毁为止。删除允许参数删除映射，但只是为了确保：取消映射旧应用程序，然后将其删除。您甚至可以在删除它之前暂停一下，以允许它处理它正在做的任何事情。

但请记住：在云中期待失败！如果有意义，请重试。因此，即使502不应该对使用您的应用程序的某些内容产生影响，因为它会很快恢复。

HP