Class WriteAheadLogOptions

Write Ahead Log Options. The options will be used for creation of new Write Ahead Logs. Existing WALs will be created with their existing options.

Inheritance
object
WriteAheadLogOptions
Inherited Members
Namespace: Tenray.ZoneTree.Options
Assembly: ZoneTree.dll
Syntax
public sealed class WriteAheadLogOptions

Properties

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AsyncCompressedModeOptions

Options for async-compressed mode.

Declaration
public AsyncCompressedModeOptions AsyncCompressedModeOptions { get; set; }
Property Value
Type Description
AsyncCompressedModeOptions
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CompressionBlockSize

WAL compressin block size. New WALs will be created based on this setting. Default value = 256 KB

Declaration
public int CompressionBlockSize { get; set; }
Property Value
Type Description
int
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CompressionLevel

The compression level of the selected compression method. Default is LZ4Fastest.

Declaration
public int CompressionLevel { get; set; }
Property Value
Type Description
int
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CompressionMethod

The compression method for the WALs with compression enabled. Default is LZ4.

Declaration
public CompressionMethod CompressionMethod { get; set; }
Property Value
Type Description
CompressionMethod
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CustomOptions

The custom options are reserved to be used by custom write ahead log providers.

Declaration
public object CustomOptions { get; set; }
Property Value
Type Description
object
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EnableIncrementalBackup

Incremental backup is a WAL feature which moves all WAL data to another incremental log file when it is compacted. It is required to compact WAL in memory without data loss in persistent device. Used by Optimistic Transactional ZoneTree for transaction log compaction. Enabling backup will make transactions slower. Default value is false.

Declaration
public bool EnableIncrementalBackup { get; set; }
Property Value
Type Description
bool
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SyncCompressedModeOptions

Options for sync-compressed mode.

Declaration
public SyncCompressedModeOptions SyncCompressedModeOptions { get; set; }
Property Value
Type Description
SyncCompressedModeOptions
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WriteAheadLogMode

The default write ahead log mode. New WALs will be created based on this setting. Default value is AsyncCompressed.

Declaration
public WriteAheadLogMode WriteAheadLogMode { get; set; }
Property Value
Type Description
WriteAheadLogMode