wjones
5565dc3e05
- Add scripts and SQL for base and supplementary indexes (total 23) - Integrate index checks and auto-creation into Jellyfin startup - Update csproj to include SQL files in build/publish output - Add diagnostics, publish/copy scripts, and troubleshooting docs - Provide detailed guides for migration, verification, and merging - Ensures robust, automated, and well-documented index setup
80 lines
2.9 KiB
C#
80 lines
2.9 KiB
C#
// <copyright file="SupplementaryIndexChecker.cs" company="PlaceholderCompany">
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// Copyright (c) PlaceholderCompany. All rights reserved.
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// </copyright>
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namespace Jellyfin.Server.Implementations.Database;
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using System;
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using System.Threading;
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using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using Npgsql;
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/// <summary>
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/// Ensures supplementary performance indexes exist on database startup.
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/// </summary>
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public class SupplementaryIndexChecker
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{
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private readonly ILogger<SupplementaryIndexChecker> _logger;
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private readonly DbContext _context;
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/// <summary>
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/// Initializes a new instance of the <see cref="SupplementaryIndexChecker"/> class.
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/// </summary>
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/// <param name="logger">The logger.</param>
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/// <param name="context">The database context.</param>
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public SupplementaryIndexChecker(ILogger<SupplementaryIndexChecker> logger, DbContext context)
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{
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_logger = logger;
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_context = context;
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}
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/// <summary>
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/// Checks if supplementary indexes exist and logs warnings if they don't.
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/// </summary>
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/// <param name="cancellationToken">Cancellation token.</param>
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/// <returns>True if all indexes exist, false otherwise.</returns>
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public async Task<bool> CheckSupplementaryIndexesAsync(CancellationToken cancellationToken = default)
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{
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try
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{
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var connection = _context.Database.GetDbConnection();
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await connection.OpenAsync(cancellationToken).ConfigureAwait(false);
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var checkQuery = @"
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SELECT COUNT(*)
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FROM pg_indexes
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WHERE indexname IN (
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'idx_baseitems_type_isvirtualitem_topparentid',
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'idx_baseitems_topparentid_isfolder',
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'idx_baseitems_datecreated_filtered',
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'idx_itemvaluesmap_itemvalueid_itemid',
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'idx_activitylogs_userid_datecreated'
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)";
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await using var command = connection.CreateCommand();
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command.CommandText = checkQuery;
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var result = await command.ExecuteScalarAsync(cancellationToken).ConfigureAwait(false);
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var indexCount = Convert.ToInt32(result);
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if (indexCount < 5)
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{
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_logger.LogWarning(
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"Only {IndexCount}/5 supplementary performance indexes found. " +
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"Run 'sql/schema_init/10_create_supplementary_indexes.sql' to add missing indexes for better performance.",
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indexCount);
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return false;
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}
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_logger.LogInformation("All supplementary performance indexes are present ({IndexCount}/5).", indexCount);
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return true;
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}
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catch (Exception ex)
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{
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_logger.LogError(ex, "Failed to check supplementary indexes");
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return false;
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}
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}
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}
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