Merge tag 'v2.0.1-rc1' into release/v2.0

.deepsource.toml

@@ -0,0 +1,18 @@
+version = 1
+
+test_patterns = [
+  'integration/testgc/**',
+  '**/*_test.go'
+]
+
+exclude_patterns = [
+
+]
+
+[[analyzers]]
+name = 'go'
+enabled = true
+
+
+  [analyzers.meta]
+  import_path = 'github.com/dgraph-io/badger'

.github/CODEOWNERS

@@ -1,4 +1,4 @@
 # CODEOWNERS info: https://help.github.com/en/articles/about-code-owners
 # Owners are automatically requested for review for PRs that changes code
 # that they own.
-* @manishrjain @ashish-goswami @dgraph-io/team
+* @manishrjain @ashish-goswami @jarifibrahim @dgraph-io/team

.github/stale.yml

@@ -3,7 +3,9 @@ daysUntilStale: 30
 # Number of days of inactivity before a stale issue is closed
 daysUntilClose: 7
 # Issues with these labels will never be considered stale
-# exemptLabels:
+exemptLabels:
+  - skip/stale
+  - status/accepted
 # Label to use when marking an issue as stale
 staleLabel: status/stale
 # Comment to post when marking an issue as stale. Set to `false` to disable

.travis.yml

@@ -3,10 +3,15 @@ language: go
 go:
     - "1.11"
     - "1.12"
+    - "1.13"
+    - tip
+os:
+    - osx
+
+jobs:
+  allow_failures:
+    - go: tip
 
-matrix:
-  include:
-    - os: osx
 notifications:
   email: false
   slack:

CHANGELOG.md

@@ -2,14 +2,116 @@
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
-and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
+and this project adheres to [Serialization Versioning](VERSIONING.md).
 
 ## [Unreleased]
 
-## [2.0.0] - unreleased
+### New APIs
+
+- badger.Options
+  - WithInMemory (5b6321)
+  - WithZSTDCompressionLevel (3eb4e72)
+
+- Badger.TableInfo
+  - EstimatedSz (f46f8ea)
+
+### Features
+
+- Introduce in-memory mode in badger. (#1113)
+
+### Fixed
+
+- Limit manifest's change set size. (#1119)
+- Cast idx to uint32 to fix compilation on i386. (#1118)
+- Fix request increment ref bug. (#1121)
+- Fix windows dataloss issue. (#1134)
+- Fix VerifyValueChecksum checks. (#1138)
+- Fix encryption in stream writer. (#1146)
+- Fix segmentation fault in vlog.Read. (header.Decode) (#1150) 
+- Fix merge iterator duplicates issue. (#1157)
+
+### Performance
+
+- Set level 15 as default compression level in Zstd. (#1111) 
+- Optimize createTable in stream_writer.go. (#1132)
+
+## [2.0.0] - 2019-11-12
+
+### New APIs
+
+- badger.DB
+  - NewWriteBatchAt (7f43769)
+  - CacheMetrics (b9056f1)
+
+- badger.Options
+  - WithMaxCacheSize (b9056f1)
+  - WithEventLogging (75c6a44)
+  - WithBlockSize (1439463)
+  - WithBloomFalsePositive (1439463)
+  - WithKeepL0InMemory (ee70ff2)
+  - WithVerifyValueChecksum (ee70ff2)
+  - WithCompression (5f3b061)
+  - WithEncryptionKey (a425b0e)
+  - WithEncryptionKeyRotationDuration (a425b0e)
+  - WithChecksumVerificationMode (7b4083d)
+
+### Features
+
+- Data cache to speed up lookups and iterations. (#1066)
+- Data compression. (#1013)
+- Data encryption-at-rest. (#1042)
+
+### Fixed
+
+- Fix deadlock when flushing discard stats. (#976)
+- Set move key's expiresAt for keys with TTL. (#1006)
+- Fix unsafe usage in Decode. (#1097)
+- Fix race condition on db.orc.nextTxnTs. (#1101)
+- Fix level 0 GC dataloss bug. (#1090)
+- Fix deadlock in discard stats. (#1070)
+- Support checksum verification for values read from vlog. (#1052)
+- Store entire L0 in memory. (#963)
+- Fix table.Smallest/Biggest and iterator Prefix bug. (#997)
+- Use standard proto functions for Marshal/Unmarshal and Size. (#994)
+- Fix boundaries on GC batch size. (#987)
+- VlogSize to store correct directory name to expvar.Map. (#956)
+- Fix transaction too big issue in restore.  (#957)
+- Fix race condition in updateDiscardStats. (#973)
+- Cast results of len to uint32 to fix compilation in i386 arch. (#961)
+- Making the stream writer APIs goroutine-safe. (#959)
+- Fix prefix bug in key iterator and allow all versions. (#950)
+- Drop discard stats if we can't unmarshal it. (#936)
+- Fix race condition in flushDiscardStats function. (#921)
+- Ensure rewrite in vlog is within transactional limits. (#911)
+- Fix discard stats moved by GC bug. (#929)
+- Fix busy-wait loop in Watermark. (#920)
+
+### Performance
+
+- Introduce fast merge iterator. (#1080)
+- Binary search based table picker. (#983)
+- Flush vlog buffer if it grows beyond threshold. (#1067)
+- Introduce StreamDone in Stream Writer. (#1061)
+- Performance Improvements to block iterator. (#977)
+- Prevent unnecessary safecopy in iterator parseKV. (#971)
+- Use pointers instead of binary encoding. (#965)
+- Reuse block iterator inside table iterator. (#972)
+- [breaking/format] Remove vlen from entry header. (#945)
+- Replace FarmHash with AESHash for Oracle conflicts. (#952)
+- [breaking/format] Optimize Bloom filters. (#940)
+- [breaking/format] Use varint for header encoding (without header length). (#935)
+- Change file picking strategy in compaction. (#894)
+- [breaking/format] Block level changes. (#880)
+- [breaking/format] Add key-offset index to the end of SST table. (#881)
+
+
+## [1.6.0] - 2019-07-01
 
 This is a release including almost 200 commits, so expect many changes - some of them
-not backwards compatible.
+not backward compatible.
+
+Regarding backward compatibility in Badger versions, you might be interested on reading
+[VERSIONING.md](VERSIONING.md).
 
 _Note_: The hashes in parentheses correspond to the commits that impacted the given feature.
 
@@ -172,8 +274,9 @@ Bug fix:
 ## [1.0.1] - 2017-11-06
 * Fix an uint16 overflow when resizing key slice
 
-[Unreleased]: https://github.com/dgraph-io/badger/compare/v2.0-rc1...HEAD
-[2.0-rc1]: https://github.com/dgraph-io/badger/compare/v1.5.5...v2.0-rc1
+[Unreleased]: https://github.com/dgraph-io/badger/compare/v2.0.0...HEAD
+[2.0.0]: https://github.com/dgraph-io/badger/compare/v1.6.0...v2.0.0
+[1.6.0]: https://github.com/dgraph-io/badger/compare/v1.5.5...v1.6.0
 [1.5.5]: https://github.com/dgraph-io/badger/compare/v1.5.3...v1.5.5
 [1.5.3]: https://github.com/dgraph-io/badger/compare/v1.5.2...v1.5.3
 [1.5.2]: https://github.com/dgraph-io/badger/compare/v1.5.1...v1.5.2