I upgraded to v0.88 about 3 weeks ago. I added the dual write for clickhousemetricswrite and the signozclickhousemetrics, at that time. I am not seeing any dot names in the metrics explorer, so I am not sure if it is working? Did I miss a step to dual write?

If you enabled dual writes to Old and New exporters, that meant you were trying to build up 3 weeks (or whatever your retention is) of data in the New exporter? ... as a transition without having to run a heavyweight historical migration. I would assume you held off on Step 4? which should've been delayed until you've accumulated enough data in the New format and ready to cut the UI over to using the New DB. This is probably what's keeping your Metrics Explorer from showing the new dot names.

@Hien Le Thanks...that was very helpful. I had ran signoz earlier with that environment variable and it had given me errors on loading the page. I tried again and it was loading as expected with the dot names. finished the migration. Thank you.

Sweet, I think at this point you can disable dual writes to save CPU and space. Forget if they had explicit instructions for dropping the old tables or if that just happens in a later release.