Hm Anybody have any idea what an error like ` handshake unex

Question

Hm Anybody have any idea what an error like ` handshake unexpected packet 72 from server` from the clickhouse exporters might indicate logs threaded

ELLIOTTCABLE · Answer

```Oct 09 21 11 25 durian000 signoz otel collector 1086820 2023 10 09T21 11 25 743Z info service telemetry go 104 Setting up own telemetry Oct 09 21 11 25 durian000 signoz otel collector 1086820 2023 10 09T21 11 25 743Z info service telemetry go 127 Serving Prometheus metrics address 127 0 0 1 8888 level Basic Oct 09 21 11 25 durian000 signoz otel collector 1086820 2023 10 09T21 11 25 743Z info exporter v0 79 0 exporter go 275 Stability level of component is undefined kind exporter data type traces name clickhousetraces Oct 09 21 11 25 durian000 signoz otel collector 1086820 Error failed to build pipelines failed to create clickhousetraces exporter for data type traces error connecting to primary db handshake unexpected packet 72 from server Oct 09 21 11 25 durian000 signoz otel collector 1086820 2023 10 09 21 11 25 application run finished with error failed to build pipelines failed to create clickhousetraces exporter for data type traces error connecting to primary db handshake unexpected packet 72 from server Oct 09 21 11 25 durian000 systemd 1 signoz otel collector service Main process exited code=exited status=1 FAILURE```

ELLIOTTCABLE · Answer

This is a relatively custom install on bare metal no Docker or anything like that Still figuring out all of the config and whatnot it s probably some really basic user error

Srikanth Chekuri · Answer

What is the DSN configured The clickhouse exporters in SigNoz only support tcp It s probably an issue because of mis configuration

ELLIOTTCABLE · Answer

Ah figured out that Clickhouse s HTTP protocol isn t implemented shortly after I posted the above oof I hate trying to use multiple Slacks tell tale `unexpected packet 72 ` since ASCII 72 is `H` in `HTTP 1 ` etc Is HTTP protocol support for Clickhouse on the radar Or alternatively can I configure multiple host port combinations and distribute across them Talking to only a single server is something of a non starter for us HTTP allows us to use our usual NginX tunneling balancing infrastructure for this which is preferable A custom streaming Clickhouse protocol balancer would be a significant amount of engineering effort Hrm x