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74 lines
4.9 KiB
Markdown
74 lines
4.9 KiB
Markdown
## master / unreleased
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## 0.8.0
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- [BUGFIX] Calling `Close` more than once on a querier returns an error instead of a panic.
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- [BUGFIX] Don't panic and recover nicely when running out of disk space.
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- [BUGFIX] Correctly handle empty labels.
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- [BUGFIX] Don't crash on an unknown tombstone ref.
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- [ENHANCEMENT] Re-add FromData function to create a chunk from bytes. It is used by Cortex and Thanos.
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- [ENHANCEMENT] Simplify mergedPostings.Seek.
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- [FEATURE] Added `currentSegment` metric for the current WAL segment it is being written to.
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## 0.7.1
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- [ENHANCEMENT] Reduce memory usage in mergedPostings.Seek
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## 0.7.0
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- [CHANGE] tsdb now requires golang 1.12 or higher.
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- [REMOVED] `chunks.NewReader` is removed as it wasn't used anywhere.
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- [REMOVED] `FromData` is considered unused so was removed.
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- [FEATURE] Added option WALSegmentSize -1 to disable the WAL.
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- [BUGFIX] Bugfix in selectOverlappingDirs. Only return the first overlapping blocks.
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- [BUGFIX] Fsync the meta file to persist it on disk to avoid data loss in case of a host crash.
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- [BUGFIX] Fix fd and vm_area leak on error path in chunks.NewDirReader.
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- [BUGFIX] Fix fd and vm_area leak on error path in index.NewFileReader.
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- [BUGFIX] Force persisting the tombstone file to avoid data loss in case of a host crash.
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- [BUGFIX] Keep series that are still in WAL in checkpoints.
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- [ENHANCEMENT] Fast path for EmptyPostings cases in Merge, Intersect and Without.
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- [ENHANCEMENT] Be smarter in how we look at matchers.
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- [ENHANCEMENT] PostListings and NotMatcher now public.
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## 0.6.1
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- [BUGFIX] Update `last` after appending a non-overlapping chunk in `chunks.MergeOverlappingChunks`. [#539](https://github.com/prometheus/tsdb/pull/539)
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## 0.6.0
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- [CHANGE] `AllowOverlappingBlock` is now `AllowOverlappingBlocks`.
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## 0.5.0
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- [FEATURE] Time-ovelapping blocks are now allowed. [#370](https://github.com/prometheus/tsdb/pull/370)
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- Disabled by default and can be enabled via `AllowOverlappingBlock` option.
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- Added `MergeChunks` function in `chunkenc/xor.go` to merge 2 time-overlapping chunks.
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- Added `MergeOverlappingChunks` function in `chunks/chunks.go` to merge multiple time-overlapping Chunk Metas.
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- Added `MinTime` and `MaxTime` method for `BlockReader`.
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- [FEATURE] New `dump` command to tsdb tool to dump all samples.
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- [FEATURE] New `encoding` package for common binary encoding/decoding helpers.
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- Added to remove some code duplication.
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- [ENHANCEMENT] When closing the db any running compaction will be cancelled so it doesn't block.
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- `NewLeveledCompactor` takes a context.
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- [CHANGE] `prometheus_tsdb_storage_blocks_bytes_total` is now `prometheus_tsdb_storage_blocks_bytes`.
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- [BUGFIX] Improved Postings Merge performance. Fixes a regression from the the previous release.
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- [BUGFIX] LiveReader can get into an infinite loop on corrupt WALs.
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## 0.4.0
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- [CHANGE] New `WALSegmentSize` option to override the `DefaultOptions.WALSegmentSize`. Added to allow using smaller wal files. For example using tmpfs on a RPI to minimise the SD card wear out from the constant WAL writes. As part of this change the `DefaultOptions.WALSegmentSize` constant was also exposed.
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- [CHANGE] Empty blocks are not written during compaction [#374](https://github.com/prometheus/tsdb/pull/374)
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- [FEATURE] Size base retention through `Options.MaxBytes`. As part of this change:
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- Added new metrics - `prometheus_tsdb_storage_blocks_bytes_total`, `prometheus_tsdb_size_retentions_total`, `prometheus_tsdb_time_retentions_total`
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- New public interface `SizeReader: Size() int64`
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- `OpenBlock` signature changed to take a logger.
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- [REMOVED] `PrefixMatcher` is considered unused so was removed.
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- [CLEANUP] `Options.WALFlushInterval` is removed as it wasn't used anywhere.
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- [FEATURE] Add new `LiveReader` to WAL pacakge. Added to allow live tailing of a WAL segment, used by Prometheus Remote Write after refactor. The main difference between the new reader and the existing `Reader` is that for `LiveReader` a call to `Next()` that returns false does not mean that there will never be more data to read.
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## 0.3.1
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- [BUGFIX] Fixed most windows test and some actual bugs for unclosed file readers.
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## 0.3.0
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- [CHANGE] `LastCheckpoint()` used to return just the segment name and now it returns the full relative path.
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- [CHANGE] `NewSegmentsRangeReader()` can now read over miltiple wal ranges by using the new `SegmentRange{}` struct.
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- [CHANGE] `CorruptionErr{}` now also exposes the Segment `Dir` which is added when displaying any errors.
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- [CHANGE] `Head.Init()` is changed to `Head.Init(minValidTime int64)`
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- [CHANGE] `SymbolTable()` renamed to `SymbolTableSize()` to make the name consistent with the `Block{ symbolTableSize uint64 }` field.
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- [CHANGE] `wal.Reader{}` now exposes `Segment()` for the current segment being read and `Offset()` for the current offset.
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- [FEATURE] tsdbutil analyze subcomand to find churn, high cardinality, etc.
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