blackbird/magento2-index-monitoring

Magento 2 module for monitoring indexers and mview states with email alerts

1.0.0 2026-03-03 09:42 UTC

Requires

• php: ^8.1|^8.2|^8.3
• magento/framework: ^103.0
• magento/module-backend: ^102.0
• magento/module-email: ^101.1
• magento/module-indexer: ^100.4
• magento/module-variable: ^100.4

MIT

README

Blackbird Index Monitoring (Magento 2.4.6 / PHP 8.3)

Magento index and mview state monitoring module.

Features:

• Email alert if an indexer remains in "working" status beyond a threshold (configurable, 60 minutes by default).
• Email alert if a mview_state is in "suspended" or (if used by a third-party module) "error" status.
• Email alert if a mview_state remains in "working" status beyond the same threshold.
• Cron job every 5 minutes (can be enabled/disabled via configuration).
• Anti-spam: only one email per incident sequence (resent only if the list of incidents changes or becomes empty then errors again).
• Dedicated log file: var/log/blackbird_index_monitoring.log (ERROR level).
• Admin action to bulk reset mview states (System > Index Management > Mview States).
• Console command to check indexer status on demand.

Installation:

Via Composer

composer require blackbird/magento2-index-monitoring
bin/magento module:enable Blackbird_IndexMonitoring
bin/magento setup:upgrade
bin/magento cache:flush

Configuration (Admin):

• Stores > Configuration > Advanced > Blackbird - Index Monitoring
  • Enable monitoring (Yes/No)
  • Stuck threshold (minutes)
  • Email recipients (comma-separated email addresses)

Admin Actions:

• System > Index Management > Mview States
  • View all mview states with their status and updated time
  • Mass action to reset mview states to "idle" status

Console Commands:

• bin/magento blackbird:indexer:check-status
  • Manually check indexer and mview status
  • Returns exit code 1 if issues are detected (useful for CI/CD pipelines)

Technical Details:

• Cron: etc/crontab.xml (*/5 * * * *), class: Blackbird\IndexMonitoring\Model\Cron\MonitorJob
• Detection:
  • Indexers: Magento\Indexer\Model\Indexer\Collection, "working" status + updated field (epoch) > threshold
  • Mview: Magento\Framework\Mview\View\State\CollectionInterface, "suspended" or "error" statuses, or "working" too long
• Notification: email template etc/email_templates.xml, file view/frontend/email/index_alert.html, sender: "General" identity
• Deduplication: persistent digest in database via Custom Variable (variable/variable_value tables), code: blackbird_index_monitoring_last_digest (Global scope / store_id=0)
• Dedicated log: var/log/blackbird_index_monitoring.log

Notes:

• The "error" mview status is not standard in Magento (idle/working/suspended). The module interprets it if set by a third party.
• Email is sent only if at least one valid recipient is configured.

Troubleshooting:

• Check Magento cron (system.cron) and server cron jobs.
• Review var/log/blackbird_index_monitoring.log for alert records.
• Useful commands:
  • bin/magento indexer:status
  • bin/magento indexer:show-mode
  • bin/magento indexer:reset <indexer_id>
  • bin/magento indexer:reindex <indexer_id>
  • bin/magento blackbird:indexer:check-status