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fix(localdb): telemetry review fixes — meter naming, snapshot status, session-count Connected

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Claude-Session: https://claude.ai/code/session_01BL2Vu1ESDQ9SCN4gVKkdts
This commit is contained in:
Joseph Doherty
2026-07-18 00:14:57 -04:00
parent be4ca76f5f
commit eb40cd8f29
9 changed files with 130 additions and 40 deletions
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ZB.MOM.WW.LocalDb/src/ZB.MOM.WW.LocalDb.Replication/DependencyInjection/ReplicationServiceCollectionExtensions.cs
+9 -9
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@@ -35,24 +35,24 @@ public static class ReplicationServiceCollectionExtensions
// Telemetry is optional but always registered here; the sessions/adapters hold nullable
// references and null-guard every call, so a consumer that never collects metrics is
// unaffected. The oplog-depth / lag / backlog observers poll a cheap synchronous store SELECT.
services.TryAddSingleton<SyncStatus>(sp =>
// unaffected. One OplogStore instance backs both the status backlog and the depth gauge
// (it is stateless over the db, so sharing is free); its observers poll a cheap
// synchronous SELECT.
services.TryAddSingleton(sp =>
{
var db = SyncSessionFactory.RequireSqlite(sp.GetRequiredService<ILocalDb>(), nameof(SyncStatus));
var db = SyncSessionFactory.RequireSqlite(sp.GetRequiredService<ILocalDb>(), nameof(OplogStore));
var options = sp.GetRequiredService<IOptions<ReplicationOptions>>().Value;
var store = new OplogStore(db, options);
return new SyncStatus { OplogBacklogProvider = store.GetOplogDepthSync };
return new OplogStore(db, options);
});
services.TryAddSingleton<SyncStatus>(sp =>
new SyncStatus { OplogBacklogProvider = sp.GetRequiredService<OplogStore>().GetOplogDepthSync });
services.TryAddSingleton<ISyncStatus>(sp => sp.GetRequiredService<SyncStatus>());
services.TryAddSingleton<LocalDbMetrics>(sp =>
{
var db = SyncSessionFactory.RequireSqlite(sp.GetRequiredService<ILocalDb>(), nameof(LocalDbMetrics));
var options = sp.GetRequiredService<IOptions<ReplicationOptions>>().Value;
var store = new OplogStore(db, options);
var status = sp.GetRequiredService<SyncStatus>();
return new LocalDbMetrics
{
OplogDepthProvider = store.GetOplogDepthSync,
OplogDepthProvider = sp.GetRequiredService<OplogStore>().GetOplogDepthSync,
LastSyncUtcProvider = () => status.LastSyncUtc,
};
});