BadgerDB v2.0.2-rc1

Fixed

• Cast sz to uint32 to fix compilation on 32 bit. (#1175)
• Fix checkOverlap in compaction. (#1166)
• Avoid sync in inmemory mode. (#1190)
• Support disabling the cache completely. (#1185)
• Add support for caching bloomfilters. (#1204)
• Fix int overflow for 32bit. (#1216)
• Remove the 'this entry should've caught' log from value.go. (#1170)
• Rework concurrency semantics of valueLog.maxFid. (#1187)

Performance

• Use fastRand instead of locked-rand in skiplist. (#1173)
• Improve write stalling on level 0 and 1. (#1186)
• Disable compression and set ZSTD Compression Level to 1. (#1191)

BadgerDB v2.0.1

New APIs

• badger.Options

  • WithInMemory (f5b6321)
  • 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)

BadgerDB v2.0.1-rc1

New APIs

• badger.Options

  • WithInMemory (f5b6321)
  • 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)

BadgerDB v2.0.0

New features

The main new features are:

• Data cache: The data cache can be configured using the WithMaxCacheSize to specify how much data should be cached in memory.
• Data compression: Compression can be configured using the WithCompression option.
• Encryption at rest: Badger can be configured to encrypt data on disk using the WithEncryptionKey and WithEncryptionKeyRotationDuration options.

Others

There are various bug fixes, optimizations, and new options. See the CHANGELOG for details.

BadgerDB v1.6.0

BadgerDB has changed a lot over the latest year so we released a new version with a brand new API.

Read our CHANGELOG for more details on the exact changes, or the announcement post on our blog.

New features

The main new features are:

• The Stream framework has been migrated from Dgraph into BadgerDB.
• A new StreamWriter was added for concurrent writes for sorted streams.
• You can now subscribe to changes in a DB with the DB.Subscribe method.
• A new builder API has been added to reduce the boilerplate related to badger.Options.

Breaking API changes

The following changes might impact your code:

• badger.ManagedDB has been deprecated and merged into badger.DB. You can still use badger.OpenManaged.
• The badger.Options.DoNotCompact option has been removed.
• badger.DefaultOptions and badger.LSMOnlyOptions are now functions that receive a directory path as a parameter.
• All the methods on badger.Txn with name starting in SetWith have been deprecated and replaced with a builder API for type badger.Entry.
• badger.Item.Value now receives a function that returns an error.
• badger.Txn.Commit doesn't receive any params anymore.
• badger.DB.Tables now accepts a boolean to decide whether keys should be counted.

Others

Many new commands and flags have been added to the badger CLI tool, read the CHANGELOG for more details.

BadgerDB v2.0.0-rc1

BadgerDB has changed a lot over the latest year so we released a new version with a brand new API.

BadgerDB v2.0.0 corresponds to the current status of master as June 20th, so if you're using latest you should not have any issues upgrading.

Read our CHANGELOG for more details on the exact changes.

New features

The main new features are:

• The Stream framework has been migrated from Dgraph into BadgerDB.
• A new StreamWriter was added for concurrent writes for sorted streams.
• You can now subscribe to changes in a DB with the DB.Subscribe method.
• A new builder API has been added to reduce the boiler plate related to badger.Options.

Breaking API changes

The following changes might impact your code:

• badger.ManagedDB has been deprecated and merged into badger.DB. You can still use badger.OpenManaged.
• The badger.Options.DoNotCompact option has been removed.
• badger.DefaultOptions and badger.LSMOnlyOptions are now functions that receive a directory path as a parameter.
• All the methods on badger.Txn with name starting in SetWith have been deprecated and replaced with a builder API for type badger.Entry.
• badger.Item.Value now receives a function that returns an error.
• badger.Txn.Commit doesn't receive any params anymore.
• badger.DB.Tables now accepts a boolean to decide whether keys should be counted.

Others

Many new commands and flags have been added to the badger CLI tool, read the CHANGELOG for more details.

BadgerDB v1.5.5

Adding support for Go modules

This will probably be the last v1.x version released, as we're also releasing v2.0.0 very soon.

BadgerDB v1.5.3

Bug Fixes:

• Fix a panic caused due to item.vptr not copying over vs.Value, when looking
  for a move key.

BadgerDB v1.5.2

Bug Fixes:

• Fix the way move key gets generated.
• If a transaction has unclosed, or multiple iterators running simultaneously,
  throw a panic. Every iterator must be properly closed. At any point in time,
  only one iterator per transaction can be running. This is to avoid bugs using the
  transaction data structure which is thread unsafe.

Warning: This change might cause panics in user code. Fix is to properly
close your iterators, and only have one running at a time per transaction.

BadgerDB v1.5.1

Bug Fixes:

• Fix for infinite yieldItemValue recursion. #503
• Fix recursive addition of badgerMove prefix. 2e3a32f
• Use file size based window size for sampling, instead of fixing it to 10MB. #501

Cleanup:

• Clarify comments and documentation.
• Move badger tool one directory level up.