# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

# Adding a new metric? We have docs for that!
# https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/new_definitions_file.html

---
$schema: moz://mozilla.org/schemas/glean/metrics/2-0-0
$tags:
  - 'Core :: Storage: IndexedDB'

idb.maintenance:
  fallback_fullrestore_metadata:
    type: counter
    description: >
      Tracks the number of times we need to fallback to restore metadata object by reading
      metadata-v2 file on disk when performing idle-maintenance on IDB database.
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_sensitivity:
      - technical
    notification_emails:
      - storage-telemetry@mozilla.com
    expires: never

  metadata_restored:
    type: counter
    description: >
      Counts the number of times we failed to load metadata object and had to restore it
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_sensitivity:
      - technical
    notification_emails:
      - storage-telemetry@mozilla.com
    expires: never

  unknown_metadata:
    type: counter
    description: >
      Increments upon encountering an unknown metadata object when performing
      idle-maintenance on IDB database. During idle-maintenance, we iterate
      over idb directories/files and construct a metadata object by calling
      QuotaManager::GetOriginMetadata or LoadFullOriginMetadataWithRestore.
      It seems that in some cases, the metadata object we get here can be
      invalid and this metric is used to track those instances.
    bugs:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_reviews:
      - https://bugzilla.mozilla.org/show_bug.cgi?id=1980177
    data_sensitivity:
      - technical
    notification_emails:
      - storage-telemetry@mozilla.com
    expires: never