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# generals
Slackbot
09/07/2021, 4:59 PMThis message was deleted.
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Pranay
09/07/2021, 6:17 PM
@User should be able to help you on this
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Ankit Nayan
09/08/2021, 4:33 AM
@User We don't use TSDB (Time Series Database) of Prometheus but we use promQL and alerting from prometheus because they are very powerful.
Ankit Nayan
09/08/2021, 4:39 AM
So, the query service of signoz is exactly how Prometheus API is but it fetches data from ClickHouse rather than prometheus tsdb
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Yash Sharma
09/08/2021, 6:12 AMOkay, so it's more like, using Prom Engine but fetching data from Clickhouse. Do we use the same engine for storing traces as well?
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Ankit Nayan
09/08/2021, 6:57 AM
No..trace data has very different format for storage and querying. It is inspired from the discussions at https://github.com/jaegertracing/jaeger/issues/1438
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Ankit Nayan
09/08/2021, 6:58 AM
So, the tracing system at SigNoz is inspired from jaeger, metrics system from prometheus. We shall try to standardise all inspirations after we have logs also
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