8 Commits (7026e6b4e46a3eb3a152cec6a1d3f6637e5bb7f9)

Author	SHA1	Message	Date
Ganesh Vernekar	7026e6b4e4	Fix tests in histo_test.go (#9163) ... Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Ganesh Vernekar	4fefd7520e	Skip the failing TestHistoChunkSameBuckets (#9089) ... Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Dieter Plaetinck	99ae04bb6f	add SHS chunk recoding and head cutting to head block (no tests yet) ... Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Dieter Plaetinck	6c13375ac8	sparsehistogram recoding upon detection that new buckets have appeared (#9030) ... * bucketIterator which returns all valid bucket indices for a []span Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * support for comparing []spans and generating interjections Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * add license header Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * assert order fix Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * handle pathological 0-length span case more gracefully Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * stale todo Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * decode-recode histograms when new buckets appear Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * factor out recoding and also add it to the fallback case Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * make linter happy Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Dieter Plaetinck	4d27816ea5	Sparsehistogram: improve dod encoding, testing, encode chunk metadata (#9015) ... * factor out different varbit schemes and include Beorn's "optimum" for buckets Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * use more compact dod encoding scheme for SHS chunk columns Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * remove FB VB and xor dod encoding because we won't use it Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * HistoChunk metadata encoding Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * add SparseHistogram.Copy() Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * histogram test: test appending a few histograms Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * add license headers Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Ganesh Vernekar	04ad56d9b8	Append sparse histograms into the Head block (#9013) ... * Append sparse histograms into the Head block Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com> * Add AtHistogram() to Iterator interface. Make HistoChunk conform to Chunk interface. Signed-off-by: Ganesh Vernekar <ganeshvern@gmail.com>	3 years ago
Dieter Plaetinck	58917d1b76	sparsehistogram: integer types and timestamp separation (#9014) ... * integer types and timestamp separation 1) unify types to int64. as suggested by beorn. we want to support counters going down (resets) even if we plan to create new chunks for now, in that case 2) histogram type doesn't know its own timestamp. include it separately in appending and iteration Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * correction: count and zeroCount to remain unsigned to make api more resilient and that's what we use in protobuf anyway Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * temp hack. Ganesh will fix Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago
Dieter Plaetinck	fd11a339a7	Sparsehistogram chunk implementation (#9009) ... * histogram chunk Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * xorAppender.AppendHistogram non-method Signed-off-by: Dieter Plaetinck <dieter@grafana.com> * basic histogram chunk test Signed-off-by: Dieter Plaetinck <dieter@grafana.com>	3 years ago