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jellyfin/Emby.Server.Implementations/ScheduledTasks/Tasks/OptimizeDatabaseTask.cs

101 lines
3.7 KiB

using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using Jellyfin.Server.Implementations;
using MediaBrowser.Model.Globalization;
using MediaBrowser.Model.Tasks;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Logging;
namespace Emby.Server.Implementations.ScheduledTasks.Tasks
{
/// <summary>
/// Optimizes Jellyfin's database by issuing a VACUUM command.
/// </summary>
public class OptimizeDatabaseTask : IScheduledTask, IConfigurableScheduledTask
{
private readonly ILogger<OptimizeDatabaseTask> _logger;
private readonly ILocalizationManager _localization;
private readonly IDbContextFactory<JellyfinDbContext> _provider;
/// <summary>
/// Initializes a new instance of the <see cref="OptimizeDatabaseTask" /> class.
/// </summary>
/// <param name="logger">The logger.</param>
/// <param name="localization">The localization manager.</param>
/// <param name="provider">The jellyfin DB context provider.</param>
public OptimizeDatabaseTask(
ILogger<OptimizeDatabaseTask> logger,
ILocalizationManager localization,
IDbContextFactory<JellyfinDbContext> provider)
{
_logger = logger;
_localization = localization;
_provider = provider;
}
/// <inheritdoc />
public string Name => _localization.GetLocalizedString("TaskOptimizeDatabase");
/// <inheritdoc />
public string Description => _localization.GetLocalizedString("TaskOptimizeDatabaseDescription");
/// <inheritdoc />
public string Category => _localization.GetLocalizedString("TasksMaintenanceCategory");
/// <inheritdoc />
public string Key => "OptimizeDatabaseTask";
/// <inheritdoc />
public bool IsHidden => false;
/// <inheritdoc />
public bool IsEnabled => true;
/// <inheritdoc />
public bool IsLogged => true;
/// <summary>
/// Creates the triggers that define when the task will run.
/// </summary>
/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
public IEnumerable<TaskTriggerInfo> GetDefaultTriggers()
{
return new[]
{
// Every so often
new TaskTriggerInfo { Type = TaskTriggerInfo.TriggerInterval, IntervalTicks = TimeSpan.FromHours(24).Ticks }
};
}
/// <inheritdoc />
public async Task ExecuteAsync(IProgress<double> progress, CancellationToken cancellationToken)
{
_logger.LogInformation("Optimizing and vacuuming jellyfin.db...");
try
{
var context = await _provider.CreateDbContextAsync(cancellationToken).ConfigureAwait(false);
await using (context.ConfigureAwait(false))
{
if (context.Database.IsSqlite())
{
await context.Database.ExecuteSqlRawAsync("PRAGMA optimize", cancellationToken).ConfigureAwait(false);
await context.Database.ExecuteSqlRawAsync("VACUUM", cancellationToken).ConfigureAwait(false);
_logger.LogInformation("jellyfin.db optimized successfully!");
}
else
{
_logger.LogInformation("This database doesn't support optimization");
}
}
}
catch (Exception e)
{
_logger.LogError(e, "Error while optimizing jellyfin.db");
}
}
}
}