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feat: enforce filestore durability and recovery invariants

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This commit is contained in:
Joseph Doherty
2026-02-23 14:51:30 -05:00
parent 3896512f84
commit 56177a7099
3 changed files with 77 additions and 0 deletions
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5
src/NATS.Server/JetStream/Storage/FileStore.cs
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@@ -91,7 +91,11 @@ public sealed class FileStore : IStreamStore, IAsyncDisposable
{
var removed = _messages.Remove(sequence);
if (removed)
{
if (sequence == _last)
_last = _messages.Count == 0 ? 0UL : _messages.Keys.Max();
RewriteDataFile();
}
return ValueTask.FromResult(removed);
}
@@ -227,6 +231,7 @@ public sealed class FileStore : IStreamStore, IAsyncDisposable
_blockCount = 0;
_activeBlockBytes = 0;
_writeOffset = 0;
_last = _messages.Count == 0 ? 0UL : _messages.Keys.Max();
using var stream = new FileStream(_dataFilePath, FileMode.Create, FileAccess.Write, FileShare.Read);
using var writer = new StreamWriter(stream, Encoding.UTF8);