Hello Signoz Team, I recently upgraded to from v0.76.2 to v0.89.0. I'm using standalone Docker setup when running migration-job for clickhouse metrics, I don't get any logs from the container. The container only exits with error code 0.

Did you have alerts and dashboards?

Hello, Signoz SQLite migration was succesful, and provided output as mentioned in the guide. But the step before that which is for Clickhouse data migration did not provide any log output

That should be okay if the exit code is 0.

Alright. But after starting Signoz 0.89.0 and checking dashboards I cannot find older metrics data.

Have you set

DOT_METRICS_ENABLED

flag?

yes

And were you running both the exporters for as long as your metrics retention period?

No I did not. I asked about this yesterday and developer said this upgrade procedure is ok. Before upgrading to 0.89.0 I was running 0.76.2 which only used the old clickhouse exporter. I upgraded to 0.89.0 and switched to use only the newer one

Hey @Miko Ruotsalainen, we mentioned keeping both exporters running in our pre-requisite for running migrations. We're really sorry that you're unable to access the older metrics data. We have updated the guide with callouts so this doesn't happen again

Hello Nagesh, It's alright, I misunderstood. No permanent damage was done, this was done on a testing setup.