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# Enum WalMode

Write Ahead Log mode.

###### Namespace: Apache.Ignite.Core.PersistentStore

###### Assembly: Apache.Ignite.Core.dll

##### Syntax

    [Obsolete("Use Apache.Ignite.Core.Data.WalMode")]
    public enum WalMode

### Fields

Name | Description
--- | ---
Background | Background mode. Does not force application buffer flush. Data may be lost in case of process crash.
Default | Default mode: full-sync disk writes. These writes survive power loss scenarios.
LogOnly | Log only mode: flushes application buffers. These writes survive process crash.
None | WAL disabled.