Cannot connect to Kafka, reason: Timeout occurred

Lenses
1

Hello. I was configuring Lenses 5.4 and an error message appeared: “Cannot connect to Kaka, reason: Timeout occurred”. The strange thing is that the value of the “HTTP timeout in milliseconds” field is set to 200,000. What could this be?

2

This issue was fixed in Lenses 5.4.4. When you use the UI to configure the connection, there is a 20-second limit on API calls, including connection tests. To change this timeout, you can modify the “lenses.akka.http.server.request-timeout.ms” parameter. So you should update your Lenses to version 5.4.4 or higher and, if the test takes more than 20 seconds, adjust the “lenses.akka.http.server.request-timeout.ms” parameter. In order to set a timeout longer than twenty seconds in the UI, you need to adjust the “lenses.akka.http.server.request-timeout.ms” in the Lenses settings, as this parameter allows for a longer time to be configured via the UI.

  • To change this configuration in docker you need to pass environment variable:

    LENSES_APPEND_CONF="[lenses.akka.http.server.request-timeout.ms](http://lenses.akka.http.server.request-timeout.ms/) = 200000"

  • To change this configuration in Helm you need to use the lenses.append.conf:

    lenses:
  append:
    conf: |
      lenses.akka.http.server.request-timeout.ms = 200000

Cheers!