There may be duplicate data points when merging series from ingester and store-gateway

[wangzhao765]

This bug is caused by prometheus client and is reported in issue prometheus/prometheus#8558 .
I think we should upgrade the prometheus client to fix this issue.

[pstibrany]

Thank you for heads-up!

[alvinlin123]

This might be the root cause of #3920.

[bboreham]

This should be fixed by #3934, right?

[pracucci]

This might be the root cause of #3920.

The issue you're describing in #3920 looks to be caused by the query-frontend, so I think this issue is unrelated.

This should be fixed by #3934, right?

Yes.