Slow and failing Agent chart data responses

For completeness, the affected versions are v1.35.0-84-nightly and v1.35.0-96-nightly. Latest, corrected version is v1.35.0-104-nightly.

The new nightly version of the Netdata Agent has been published and installed by a large portion of the agents that auto-update. We are monitoring the results.

We have identified part of the cause of failing responses for alarm values. In yesterday's nightly build of the Agent, we enabled the use of the newer MQTT5 library by default. We will create another build to revert that. In the meanwhile, you can explicitly disable this library using the mqtt5 setting in your configuration as described here: https://github.com/netdata/cloud-backend/issues/178.

Additionally the other latencies appear to be another instance of a known issue that causes responses with a small payload to be delayed. We are working on resolving this issue.

Users with nightly versions of the Netdata Agent are experiencing slow responses between Cloud and Agent, resulting in failing or slow charts in their Cloud dashboards. We are investigating the issue.