Error migrating Kong OSS from 2.8.3 to 3.1.1.

[mayankmurari]

I am trying to migrate Kong from 2.8.3 to 3.1.1. Kong 3.1.1 pods are not coming up and below error is present in the logs.
Current Kong version is 2.8.3 with KIC 2.8.2 and Postgres DB.

 [emerg] 1#0: bind() to unix:/kong_prefix/worker_events.sock failed (98: Address in use)
 [notice] 1#0: try again to bind() after 500ms```

[chronolaw]

Kong 3.x introduced a new events library called lua-resty-events, the blog is here.

Since it is a new library there are some bugs about it. I suggest you upgrade to the latest kong, like Kong 3.4, which may fix this issue.

[mayankmurari]

@chronolaw Thanks for your input.