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Some api endpoints stop responding after a while

See original GitHub issue

After updating to the latest dataflow and skipper version, the left panel of dataflow stopped working, the about call returned 404 error, this was described in: https://github.com/spring-cloud/spring-cloud-dataflow/issues/3924

After debugging the issue a little bit I saw that the pod with skipper running did indeed returned 404 after some time running.

This is the response when invoking Skipper api with curl after it gets in a wrong state: curl -i http://skipper.somenamespace.svc.cluster.local/api

{
  "_links" : {
    "about" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/about"
    },
    "release" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/release"
    },
    "package" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/package"
    },
    "profile" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/profile"
    }
  }
}

If I restart the skipper pod the response becomes:

{
  "_links" : {
    "deployers" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/deployers{?page,size,sort}",
      "templated" : true
    },
    "repositories" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/repositories{?page,size,sort}",
      "templated" : true
    },
    "packageMetadata" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/packageMetadata{?page,size,sort,projection}",
      "templated" : true
    },
    "releases" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/releases{?page,size,sort}",
      "templated" : true
    },
    "about" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/about"
    },
    "release" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/release"
    },
    "package" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/package"
    },
    "profile" : {
      "href" : "http://skipper.somenamespace.svc.cluster.local/api/profile"
    }
  }
}

Issue Analytics

State:
Created 3 years ago
Comments:11 (8 by maintainers)

Top GitHub Comments

1reaction

jvalkealcommented, May 14, 2020

Most likely this issue is caused by https://jira.spring.io/browse/DATAREST-1502. It’s kinda hit and miss to reproduce as it’s jvm evicting references.

We’ll get needed fixes when we do a new release with Spring Boot 2.2.7. We’ll probably release latest on Monday.

0reactions

sabbyanandancommented, May 19, 2020

@rstpv: Thank you for testing it and the confirmation. Appreciate it.