2019-03-18 12:44:58 +00:00
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# TSDB
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2017-04-10 11:29:46 +00:00
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2019-10-24 10:05:47 +00:00
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[](https://godoc.org/github.com/prometheus/prometheus/tsdb)
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2018-05-07 09:10:31 +00:00
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2020-10-19 11:47:10 +00:00
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This directory contains the Prometheus storage layer that is used in its 2.x releases.
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2017-04-10 11:29:46 +00:00
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A writeup of its design can be found [here](https://fabxc.org/blog/2017-04-10-writing-a-tsdb/).
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2018-01-09 15:40:05 +00:00
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2018-10-23 10:43:06 +00:00
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Based on the Gorilla TSDB [white papers](http://www.vldb.org/pvldb/vol8/p1816-teller.pdf).
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2018-06-04 12:41:43 +00:00
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Video: [Storing 16 Bytes at Scale](https://youtu.be/b_pEevMAC3I) from [PromCon 2017](https://promcon.io/2017-munich/).
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2018-01-09 15:40:05 +00:00
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See also the [format documentation](docs/format/README.md).
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2020-10-19 11:47:10 +00:00
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A series of blog posts explaining different components of TSDB:
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* [The Head Block](https://ganeshvernekar.com/blog/prometheus-tsdb-the-head-block/)
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* [WAL and Checkpoint](https://ganeshvernekar.com/blog/prometheus-tsdb-wal-and-checkpoint/)
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* [Memory Mapping of Head Chunks from Disk](https://ganeshvernekar.com/blog/prometheus-tsdb-mmapping-head-chunks-from-disk/)
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2021-01-21 11:44:40 +00:00
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* [Persistent Block and its Index](https://ganeshvernekar.com/blog/prometheus-tsdb-persistent-block-and-its-index/)
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* [Queries](https://ganeshvernekar.com/blog/prometheus-tsdb-queries/)
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