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[backend/queue] Refactor queue job count functions into DatabaseContext

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Laura Hausmann 2024-06-28 18:20:59 +02:00
parent 6ba374a681
commit ca8ce9137d
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GPG key ID: D044E84C5BE01605
2 changed files with 30 additions and 22 deletions
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31
Iceshrimp.Backend/Core/Database/DatabaseContext.cs
View file

@ -1251,10 +1251,10 @@ public class DatabaseContext(DbContextOptions<DatabaseContext> options)
public IQueryable<Note> Conversations(User user)
=> FromExpression(() => Conversations(user.Id));
public IQueryable<Job> GetJobs(string queue, string? workerId) =>
workerId == null ? GetJobs(queue) : GetWorkerJobs(queue, workerId);
public IQueryable<Job> GetJob(string queue, string? workerId) =>
workerId == null ? GetJob(queue) : GetWorkerJob(queue, workerId);
private IQueryable<Job> GetJobs(string queue)
private IQueryable<Job> GetJob(string queue)
=> Database.SqlQuery<Job>($"""
UPDATE "jobs" SET "status" = 'running', "started_at" = now()
WHERE "id" = (
@ -1266,7 +1266,7 @@ public class DatabaseContext(DbContextOptions<DatabaseContext> options)
RETURNING "jobs".*;
""");
private IQueryable<Job> GetWorkerJobs(string queue, string workerId)
private IQueryable<Job> GetWorkerJob(string queue, string workerId)
=> Database.SqlQuery<Job>($"""
UPDATE "jobs" SET "status" = 'running', "started_at" = now(), "worker_id" = {workerId}::varchar
WHERE "id" = (
@ -1284,6 +1284,29 @@ public class DatabaseContext(DbContextOptions<DatabaseContext> options)
RETURNING "jobs".*;
""");
public Task<int> GetJobRunningCount(string queue, string? workerId, CancellationToken token) =>
workerId == null ? GetJobRunningCount(queue, token) : GetWorkerJobRunningCount(queue, workerId, token);
private Task<int> GetJobRunningCount(string queue, CancellationToken token) =>
Jobs.CountAsync(p => p.Queue == queue && p.Status == Job.JobStatus.Running, token);
private Task<int> GetWorkerJobRunningCount(string queue, string workerId, CancellationToken token) =>
Jobs.CountAsync(p => p.Queue == queue && p.Status == Job.JobStatus.Running && p.WorkerId == workerId, token);
public Task<int> GetJobQueuedCount(string queue, string? workerId, CancellationToken token) =>
workerId == null ? GetJobQueuedCount(queue, token) : GetWorkerJobQueuedCount(queue, token);
private Task<int> GetJobQueuedCount(string queue, CancellationToken token) =>
Jobs.CountAsync(p => p.Queue == queue && p.Status == Job.JobStatus.Queued, token);
private Task<int> GetWorkerJobQueuedCount(string queue, CancellationToken token) =>
Jobs.CountAsync(p => p.Queue == queue &&
(p.Status == Job.JobStatus.Queued ||
(p.Status == Job.JobStatus.Running &&
p.WorkerId != null &&
!Workers.Any(w => w.Id == p.WorkerId &&
w.Heartbeat > DateTime.UtcNow - TimeSpan.FromSeconds(90)))), token);
public async Task<bool> IsDatabaseEmpty()
=> !await Database.SqlQuery<object>($"""
select s.nspname from pg_class c

21
Iceshrimp.Backend/Core/Services/QueueService.cs
View file

@ -311,23 +311,8 @@ public class PostgresJobQueue<T>(
await using var scope = GetScope();
await using var db = GetDbContext(scope);
var runningCount = _workerId == null
? await db.Jobs.CountAsync(p => p.Queue == name && p.Status == Job.JobStatus.Running, token)
: await db.Jobs.CountAsync(p => p.Queue == name &&
p.Status == Job.JobStatus.Running &&
p.WorkerId != null &&
p.WorkerId == _workerId, token);
var queuedCount = _workerId == null
? await db.Jobs.CountAsync(p => p.Queue == name && p.Status == Job.JobStatus.Queued, token)
: await
db.Jobs.CountAsync(p => p.Queue == name &&
(p.Status == Job.JobStatus.Queued ||
(p.Status == Job.JobStatus.Running &&
p.WorkerId != null &&
!db.Workers.Any(w => w.Id == p.WorkerId &&
w.Heartbeat >
DateTime.UtcNow - TimeSpan.FromSeconds(90)))),
token);
var runningCount = await db.GetJobRunningCount(name, _workerId, token);
var queuedCount = await db.GetJobQueuedCount(name, _workerId, token);
var actualParallelism = Math.Min(parallelism - runningCount, queuedCount);
if (actualParallelism <= 0)
@ -497,7 +482,7 @@ public class PostgresJobQueue<T>(
{
await using var db = GetDbContext(processorScope);
if (await db.GetJobs(name, _workerId).ToListAsync(token) is not [{ } job])
if (await db.GetJob(name, _workerId).ToListAsync(token) is not [{ } job])
return;
_logger.LogTrace("Processing {queue} job {id}", name, job.Id);