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9cc5089af8
* Moving mlog to corelibs * Regenerating app layers * Fix golangci-lint problem * Fixing golangci-lint errors * Renaming from corelibs to shared * Renaming from corelibs to shared * Fixing import * Fixing merge problems * Fixing build
112 lines
3.6 KiB
Go
112 lines
3.6 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package migrations
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import (
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"time"
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"github.com/mattermost/mattermost-server/v5/app"
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"github.com/mattermost/mattermost-server/v5/model"
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"github.com/mattermost/mattermost-server/v5/shared/mlog"
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)
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const (
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MigrationJobWedgedTimeoutMilliseconds = 3600000 // 1 hour
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)
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type Scheduler struct {
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srv *app.Server
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allMigrationsCompleted bool
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}
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func (m *MigrationsJobInterfaceImpl) MakeScheduler() model.Scheduler {
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return &Scheduler{m.srv, false}
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}
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func (scheduler *Scheduler) Name() string {
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return "MigrationsScheduler"
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}
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func (scheduler *Scheduler) JobType() string {
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return model.JOB_TYPE_MIGRATIONS
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}
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func (scheduler *Scheduler) Enabled(_ *model.Config) bool {
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return true
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}
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//nolint:unparam
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func (scheduler *Scheduler) NextScheduleTime(cfg *model.Config, now time.Time, pendingJobs bool, lastSuccessfulJob *model.Job) *time.Time {
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if scheduler.allMigrationsCompleted {
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return nil
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}
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nextTime := time.Now().Add(60 * time.Second)
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return &nextTime
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}
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//nolint:unparam
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func (scheduler *Scheduler) ScheduleJob(cfg *model.Config, pendingJobs bool, lastSuccessfulJob *model.Job) (*model.Job, *model.AppError) {
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mlog.Debug("Scheduling Job", mlog.String("scheduler", scheduler.Name()))
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// Work through the list of migrations in order. Schedule the first one that isn't done (assuming it isn't in progress already).
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for _, key := range MakeMigrationsList() {
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state, job, err := GetMigrationState(key, scheduler.srv.Store)
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if err != nil {
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mlog.Error("Failed to determine status of migration: ", mlog.String("scheduler", scheduler.Name()), mlog.String("migration_key", key), mlog.String("error", err.Error()))
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return nil, nil
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}
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if state == MigrationStateInProgress {
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// Check the migration job isn't wedged.
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if job != nil && job.LastActivityAt < model.GetMillis()-MigrationJobWedgedTimeoutMilliseconds && job.CreateAt < model.GetMillis()-MigrationJobWedgedTimeoutMilliseconds {
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mlog.Warn("Job appears to be wedged. Rescheduling another instance.", mlog.String("scheduler", scheduler.Name()), mlog.String("wedged_job_id", job.Id), mlog.String("migration_key", key))
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if err := scheduler.srv.Jobs.SetJobError(job, nil); err != nil {
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mlog.Error("Worker: Failed to set job error", mlog.String("scheduler", scheduler.Name()), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
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}
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return scheduler.createJob(key, job)
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}
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return nil, nil
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}
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if state == MigrationStateCompleted {
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// This migration is done. Continue to check the next.
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continue
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}
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if state == MigrationStateUnscheduled {
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mlog.Debug("Scheduling a new job for migration.", mlog.String("scheduler", scheduler.Name()), mlog.String("migration_key", key))
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return scheduler.createJob(key, job)
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}
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mlog.Error("Unknown migration state. Not doing anything.", mlog.String("migration_state", state))
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return nil, nil
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}
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// If we reached here, then there aren't any migrations left to run.
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scheduler.allMigrationsCompleted = true
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mlog.Debug("All migrations are complete.", mlog.String("scheduler", scheduler.Name()))
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return nil, nil
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}
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func (scheduler *Scheduler) createJob(migrationKey string, lastJob *model.Job) (*model.Job, *model.AppError) {
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var lastDone string
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if lastJob != nil {
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lastDone = lastJob.Data[JobDataKeyMigration_LAST_DONE]
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}
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data := map[string]string{
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JobDataKeyMigration: migrationKey,
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JobDataKeyMigration_LAST_DONE: lastDone,
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}
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job, err := scheduler.srv.Jobs.CreateJob(model.JOB_TYPE_MIGRATIONS, data)
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if err != nil {
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return nil, err
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}
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return job, nil
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}
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