Joseph Doherty
24 lines
1.2 KiB
C#
24 lines
1.2 KiB
C#
namespace ZB.MOM.WW.LocalDb.Replication;
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/// <summary>
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/// Thrown by a live sync session when the oplog horizon has moved ABOVE the position that session
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/// is streaming from: a cap prune deleted deltas it had not yet sent, so every later delta it could
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/// ship would land on the far side of a hole the peer will never receive.
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/// </summary>
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/// <remarks>
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/// This is not a transport failure and not a data error — it is the session discovering that its own
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/// incremental position has become unsound. Nothing can repair it in-session (the deleted rows are
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/// gone), so the session tears itself down; the same prune set <c>needs_snapshot</c>, which makes the
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/// reconnect handshake serve a snapshot instead of deltas. Catching this and continuing would
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/// reintroduce exactly the silent divergence it exists to stop.
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/// </remarks>
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public sealed class LocalDbOplogGapException : Exception
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{
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/// <summary>Creates the exception with a message describing the gap.</summary>
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public LocalDbOplogGapException(string message) : base(message) { }
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/// <summary>Creates the exception with a message and the underlying cause.</summary>
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public LocalDbOplogGapException(string message, Exception innerException)
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: base(message, innerException) { }
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}
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