* feat(tsdb): allow appending to ST capable XOR chunk optionally
Only for float samples as of now. Supports for in-order and out-of-order
samples.
Make sure that on readout the ST capable chunks are returned automatically.
When the chunks are returned as is, this is trivially true.
When a chunk needs to be re-coded due to deletion (tombstone) markers,
we take the encoding of the original chunk.
When a chunk needs to be created from overlapping chunks, we observe
whether ST is zero or not and create the new chunk based on that.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
Replace polling loops (for range 100 { time.Sleep }) with explicit
db.Compact() calls after disabling background compaction, eliminating
CI flakiness on slow machines. Also fix incorrect overlap assertions
that were checking the wrong direction (LessOrEqual -> GreaterOrEqual).
Signed-off-by: Arve Knudsen <arve.knudsen@gmail.com>
Initial implementation of https://github.com/prometheus/prometheus/issues/17790.
Only implements ST-per-sample for Counters. Tests and benchmarks updated.
Note: This increases the size of the RefSample object for all users, whether st-per-sample is turned on or not.
Signed-off-by: Owen Williams <owen.williams@grafana.com>
find . -name "*.go" -type f -exec sed -E -i \
's/([^[:alpha:]]sample\{)([^,{:]+,[^,]+,[^,]+,[^,]+\})/\10, \2/g' {} +
I've omitted tsdb/ooo_head.go from the commit because I'm also adding todo
there.
Signed-off-by: György Krajcsovits <gyorgy.krajcsovits@grafana.com>
