64 lines
2.3 KiB
C#
64 lines
2.3 KiB
C#
using System.Diagnostics;
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using Catalogger.Backend.Cache.InMemoryCache;
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using Catalogger.Backend.Database;
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using Humanizer;
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using Microsoft.EntityFrameworkCore;
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using Prometheus;
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namespace Catalogger.Backend.Services;
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public class MetricsCollectionService(
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ILogger logger,
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GuildCache guildCache,
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ChannelCache channelCache,
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UserCache userCache,
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IServiceProvider services
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)
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{
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private readonly ILogger _logger = logger.ForContext<MetricsCollectionService>();
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public async Task CollectMetricsAsync(CancellationToken ct = default)
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{
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var timer = CataloggerMetrics.MetricsCollectionTime.NewTimer();
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await using var scope = services.CreateAsyncScope();
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await using var db = scope.ServiceProvider.GetRequiredService<DatabaseContext>();
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var messageCount = await db.Messages.CountAsync(ct);
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CataloggerMetrics.GuildsCached.Set(guildCache.Size);
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CataloggerMetrics.ChannelsCached.Set(channelCache.Size);
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CataloggerMetrics.UsersCached.Set(userCache.Size);
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CataloggerMetrics.MessagesStored.Set(messageCount);
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CataloggerMetrics.MessageRateMinute = messageCount - CataloggerMetrics.MessageRateMinute;
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var process = Process.GetCurrentProcess();
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CataloggerMetrics.ProcessPhysicalMemory.Set(process.WorkingSet64);
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CataloggerMetrics.ProcessVirtualMemory.Set(process.VirtualMemorySize64);
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CataloggerMetrics.ProcessPrivateMemory.Set(process.PrivateMemorySize64);
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CataloggerMetrics.ProcessThreads.Set(process.Threads.Count);
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CataloggerMetrics.ProcessHandles.Set(process.HandleCount);
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_logger.Information("Collected metrics in {Duration}", timer.ObserveDuration());
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}
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}
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public class BackgroundMetricsCollectionService(
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ILogger logger,
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MetricsCollectionService innerService
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) : BackgroundService
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{
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private readonly ILogger _logger = logger.ForContext<BackgroundMetricsCollectionService>();
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protected override async Task ExecuteAsync(CancellationToken ct)
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{
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_logger.Information("Metrics are disabled, periodically collecting metrics manually");
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using var timer = new PeriodicTimer(1.Minutes());
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while (await timer.WaitForNextTickAsync(ct))
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{
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_logger.Debug("Collecting metrics");
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await innerService.CollectMetricsAsync(ct);
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}
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}
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}
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