3 Commits (main)

Author	SHA1	Message	Date
Owen Diehl	c405db4317	Format + Library for building bloom filter "blocks" from chunks (#10780) ... This PR introduces both a binary format for bloom filter "blocks" and a library for building/querying them. Each "block" consists of two files: 1) `Index`. This is a list of individually compressed pages of stream+chunk information sorted in ascending fingerprint order. Each series lists both the chunks indexed in the bloom filters as well as the relevant offsets for said series in the bloom file. 2) `Blooms`. This is a list of individually compressed pages of bloom filters for each series, again sorted in ascending fingerprint order. There is still more work to do, but I'm opening this PR as an initial pass.	2 years ago
Owen Diehl	dbbadafca2	Tsdb/v3 (#9070) ... brief: adds page support for chunks within a series. This lets us do a few optimizations, most notably skipping chunk ranges that don't overlap with our query bounds. It also allows us to use aggregated stats for pages when computing `Stats` calls that completely overlap all chunks in a page. teaser: ``` pkg: github.com/grafana/loki/pkg/storage/stores/tsdb/index BenchmarkChunkStats/version_2/2_chunks-10 10121240 109.4 ns/op 24 B/op 1 allocs/op BenchmarkChunkStats/version_3/2_chunks-10 27591069 43.51 ns/op 0 B/op 0 allocs/op BenchmarkChunkStats/version_2/4_chunks-10 9410245 128.7 ns/op 24 B/op 1 allocs/op BenchmarkChunkStats/version_3/4_chunks-10 21808070 54.44 ns/op 0 B/op 0 allocs/op BenchmarkChunkStats/version_2/10_chunks-10 6048235 201.3 ns/op 24 B/op 1 allocs/op BenchmarkChunkStats/version_3/10_chunks-10 9517605 125.1 ns/op 0 B/op 0 allocs/op BenchmarkChunkStats/version_2/100_chunks-10 1000000 1081 ns/op 24 B/op 1 allocs/op BenchmarkChunkStats/version_3/100_chunks-10 1669972 715.4 ns/op 528 B/op 3 allocs/op BenchmarkChunkStats/version_2/1000_chunks-10 118125 10165 ns/op 24 B/op 1 allocs/op BenchmarkChunkStats/version_3/1000_chunks-10 570576 2125 ns/op 4816 B/op 6 allocs/op BenchmarkChunkStats/version_2/10000_chunks-10 10000 117447 ns/op 123014 B/op 3 allocs/op BenchmarkChunkStats/version_3/10000_chunks-10 74524 16225 ns/op 48601 B/op 9 allocs/op BenchmarkChunkStats/version_2/100000_chunks-10 842 1240380 ns/op 3211679 B/op 13 allocs/op BenchmarkChunkStats/version_3/100000_chunks-10 8494 141169 ns/op 516530 B/op 13 allocs/op ``` ``` pkg: github.com/grafana/loki/pkg/storage/stores/tsdb/index BenchmarkReadChunks/version_2/2_chunks-10 13673050 80.52 ns/op 172 B/op 0 allocs/op BenchmarkReadChunks/version_3/2_chunks-10 25713412 64.06 ns/op 201 B/op 0 allocs/op BenchmarkReadChunks/version_2/4_chunks-10 12302040 96.56 ns/op 373 B/op 0 allocs/op BenchmarkReadChunks/version_3/4_chunks-10 20512030 84.93 ns/op 346 B/op 0 allocs/op BenchmarkReadChunks/version_2/10_chunks-10 6974947 168.7 ns/op 490 B/op 0 allocs/op BenchmarkReadChunks/version_3/10_chunks-10 7436360 161.0 ns/op 632 B/op 0 allocs/op BenchmarkReadChunks/version_2/50_chunks-10 2038724 599.3 ns/op 2034 B/op 0 allocs/op BenchmarkReadChunks/version_3/50_chunks-10 2251822 619.8 ns/op 1926 B/op 0 allocs/op BenchmarkReadChunks/version_2/100_chunks-10 946430 1092 ns/op 4132 B/op 0 allocs/op BenchmarkReadChunks/version_3/100_chunks-10 1467297 1000 ns/op 3308 B/op 1 allocs/op BenchmarkReadChunks/version_2/150_chunks-10 674575 1721 ns/op 5767 B/op 0 allocs/op BenchmarkReadChunks/version_3/150_chunks-10 1000000 1373 ns/op 6171 B/op 1 allocs/op BenchmarkReadChunks/version_2/1000_chunks-10 109153 10554 ns/op 33063 B/op 0 allocs/op BenchmarkReadChunks/version_3/1000_chunks-10 158086 6963 ns/op 32829 B/op 1 allocs/op BenchmarkReadChunks/version_2/10000_chunks-10 9043 114121 ns/op 345258 B/op 0 allocs/op BenchmarkReadChunks/version_3/10000_chunks-10 22083 79896 ns/op 435493 B/op 1 allocs/op BenchmarkReadChunks/version_2/100000_chunks-10 1039 1103621 ns/op 3479873 B/op 0 allocs/op BenchmarkReadChunks/version_3/100000_chunks-10 2101 1155419 ns/op 4680266 B/op 1 allocs/op ``` --------- Signed-off-by: Owen Diehl <ow.diehl@gmail.com>	3 years ago
Owen Diehl	1837c9e0b2	Experimental TSDB index (#5376) ... * moves encoding to own pkg * decwrap impl * forks tsdb index * renames tsdb_enc * wraps all tsdb decbufs * use loki encbuf * custom chunk meta replacing ref-id for uint32 checksum * handle overlapping chunks in tsdb encoding * tsdb builder impl * tsdb querier beginnings to use modified tsdb * fixes nonexistent reference * lint/remove unused * adds tsdb testware * lint	4 years ago