18 Commits (main)

Author	SHA1	Message	Date
Ivan Kalita	827292d8ed	chore(metastore): add columnar indexpointers reader (#20068) ... Similar to https://github.com/grafana/loki/pull/20053 and https://github.com/grafana/loki/pull/19992 I add a columnar reader for index pointers sections.	3 weeks ago
Christian Haudum	4c81ebc7c3	chore(dataobj): Add option to set target row limit for pages (#19128) ... This PR introduces an option for the column builder to limit the number of rows in a page. It can be set for logs object and index objects separately using `-dataobj-consumer.max-page-rows` and `-dataobj-index-builder.max-page-rows` respectively. Signed-off-by: Christian Haudum <christian.haudum@gmail.com>	4 months ago
Robert Fratto	f6091a67d1	chore(engine): move to toggleable section prefetching (#19142) ... dataset.readerDownloader was originally introduced in #16429, an attempt to balance peak memory usage of reading a section with read times by downloading a configurable size of pages in advance. In practice, each roundtrip to object storage adds too much of a latency hit, and we've started to set the cache limit high enough to ensure that each reader only needs a single prefetch. Given what we've found, it no longer makes sense to control peak memory usage via the prefetch size. Other options, such as downloading directly to disk, may be explored in the future. In the meantime, this PR removes the ability to specify a cache size. All non-pruned pages will be bulk requested using the range reader (#19067) on the first read call. Pages which have left the potential read window will continue to be eagerly removed for garbage collection. However, we don't want to prefetch when the dataset is entirely in memory, which is the case when the logs section builder is performing k-way merge over in-memory sections. To lower the memory usage of builders, prefetching is configurable. For this initial PR, prefetching is only disabled for the logs section builder; all other reads force prefetching. Signed-off-by: Robert Fratto <robertfratto@gmail.com>	4 months ago
benclive	0b9b4c1ee5	chore: Support multi-tenancy in indexobj builder (#18880)	4 months ago
Robert Fratto	595715146f	chore(dataobj)!: introduce new centralized dataset encoding format (#18871) ... Signed-off-by: Robert Fratto <robertfratto@gmail.com>	4 months ago
benclive	19d90ef023	chore: Add sorting & tenant info to remaining section types (#18861)	5 months ago
Robert Fratto	642d826a00	chore(dataobj): make section tenancy a global construct (#18857) ... Signed-off-by: Robert Fratto <robertfratto@gmail.com> Co-authored-by: George Robinson <george.robinson@grafana.com>	5 months ago
Ashwanth	5203a0c9ad	chore(dataobj): add reader stats (#18694)	5 months ago
Robert Fratto	100e259a8d	chore(dataobj): introduce the concept of section info "extensions" (#18832)	5 months ago
Robert Fratto	2ca8e58b0e	chore(dataobj): add ability to buffer pending sections to disk (#18780) ... Signed-off-by: Robert Fratto <robertfratto@gmail.com>	5 months ago
Robert Fratto	40057f5ce2	chore(dataobj): permit reading subset of section metadata (#18815) ... Signed-off-by: Robert Fratto <robertfratto@gmail.com>	5 months ago
Robert Fratto	d4b027ae0c	chore(dataobj): return Object on Builder.Flush (#18622)	5 months ago
Robert Fratto	061d1c1d22	chore(dataobj): make copy of pages from downloaded window (#18566)	5 months ago
Ashwanth	da4e59f8c6	chore(dataobj): store sort order information in section metadata (#18499)	5 months ago
benclive	f075da4f94	chore: Use correct TimeRange predicate for indexpointers (#18529)	5 months ago
benclive	d0a3cd86a7	chore: Remove lookback from stats in unsupported sections (#18489)	5 months ago
Periklis Tsirakidis	bcf24e4cfb	chore(dataobj): Use indexpointer sections in metastore reads and writes (#18448)	6 months ago
Periklis Tsirakidis	6eedcaaded	chore(dataobj): Add new index pointers section type (#18441)	6 months ago