diff options
Diffstat (limited to 'toolkit/components/telemetry/docs/data/sync-ping.rst')
| -rw-r--r-- | toolkit/components/telemetry/docs/data/sync-ping.rst | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/toolkit/components/telemetry/docs/data/sync-ping.rst b/toolkit/components/telemetry/docs/data/sync-ping.rst new file mode 100644 index 000000000..775ab008a --- /dev/null +++ b/toolkit/components/telemetry/docs/data/sync-ping.rst @@ -0,0 +1,182 @@ + +"sync" ping +=========== + +This is an aggregated format that contains information about each sync that occurred during a timeframe. It is submitted every 12 hours, and on browser shutdown, but only if the syncs property would not be empty. The ping does not contain the enviroment block, nor the clientId. + +Each item in the syncs property is generated after a sync is completed, for both successful and failed syncs, and contains measurements pertaining to sync performance and error information. + +A JSON-schema document describing the exact format of the ping's payload property can be found at `services/sync/tests/unit/sync\_ping\_schema.json <https://dxr.mozilla.org/mozilla-central/source/services/sync/tests/unit/sync_ping_schema.json>`_. + +Structure: + +.. code-block:: js + + { + version: 4, + type: "sync", + ... common ping data + payload: { + version: 1, + discarded: <integer count> // Number of syncs discarded -- left out if zero. + why: <string>, // Why did we submit the ping? Either "shutdown" or "schedule". + // Array of recorded syncs. The ping is not submitted if this would be empty + syncs: [{ + when: <integer milliseconds since epoch>, + took: <integer duration in milliseconds>, + uid: <string>, // Hashed FxA unique ID, or string of 32 zeros. + deviceID: <string>, // Hashed FxA Device ID, hex string of 64 characters, not included if the user is not logged in. + didLogin: <bool>, // Optional, is this the first sync after login? Excluded if we don't know. + why: <string>, // Optional, why the sync occured, excluded if we don't know. + + // Optional, excluded if there was no error. + failureReason: { + name: <string>, // "httperror", "networkerror", "shutdownerror", etc. + code: <integer>, // Only present for "httperror" and "networkerror". + error: <string>, // Only present for "othererror" and "unexpectederror". + from: <string>, // Optional, and only present for "autherror". + }, + + // Optional, excluded if we couldn't get a valid uid or local device id + devices: [{ + os: <string>, // OS string as reported by Services.appinfo.OS, + version: <string>, // Firefox version, as reported by Services.appinfo.version + id: <string>, // Hashed FxA device id for device + }], + + // Internal sync status information. Omitted if it would be empty. + status: { + sync: <string>, // The value of the Status.sync property, unless it indicates success. + service: <string>, // The value of the Status.service property, unless it indicates success. + }, + // Information about each engine's sync. + engines: [ + { + name: <string>, // "bookmarks", "tabs", etc. + took: <integer duration in milliseconds>, // Optional, values of 0 are omitted. + + status: <string>, // The value of Status.engines, if it holds a non-success value. + + // Optional, excluded if all items would be 0. A missing item indicates a value of 0. + incoming: { + applied: <integer>, // Number of records applied + succeeded: <integer>, // Number of records that applied without error + failed: <integer>, // Number of records that failed to apply + newFailed: <integer>, // Number of records that failed for the first time this sync + reconciled: <integer>, // Number of records that were reconciled + }, + + // Optional, excluded if it would be empty. Records that would be + // empty (e.g. 0 sent and 0 failed) are omitted. + outgoing: [ + { + sent: <integer>, // Number of outgoing records sent. Zero values are omitted. + failed: <integer>, // Number that failed to send. Zero values are omitted. + } + ], + // Optional, excluded if there were no errors + failureReason: { ... }, // Same as above. + + // Optional, excluded if it would be empty or if the engine cannot + // or did not run validation on itself. + validation: { + // Optional validator version, default of 0. + version: <integer>, + checked: <integer>, + took: <non-monotonic integer duration in milliseconds>, + // Entries with a count of 0 are excluded, the array is excluded if no problems are found. + problems: [ + { + name: <string>, // The problem identified. + count: <integer>, // Number of times it occurred. + } + ], + // Format is same as above, this is only included if we tried and failed + // to run validation, and if it's present, all other fields in this object are optional. + failureReason: { ... }, + } + } + ] + }] + } + } + +info +---- + +discarded +~~~~~~~~~ + +The ping may only contain a certain number of entries in the ``"syncs"`` array, currently 500 (it is determined by the ``"services.sync.telemetry.maxPayloadCount"`` preference). Entries beyond this are discarded, and recorded in the discarded count. + +syncs.took +~~~~~~~~~~ + +These values should be monotonic. If we can't get a monotonic timestamp, -1 will be reported on the payload, and the values will be omitted from the engines. Additionally, the value will be omitted from an engine if it would be 0 (either due to timer inaccuracy or finishing instantaneously). + +syncs.uid +~~~~~~~~~ + +This property containing a hash of the FxA account identifier, which is a 32 character hexidecimal string. In the case that we are unable to authenticate with FxA and have never authenticated in the past, it will be a placeholder string consisting of 32 repeated ``0`` characters. + +syncs.why +~~~~~~~~~ + +One of the following values: + +- ``startup``: This is the first sync triggered after browser startup. +- ``schedule``: This is a sync triggered because it has been too long since the last sync. +- ``score``: This sync is triggered by a high score value one of sync's trackers, indicating that many changes have occurred since the last sync. +- ``user``: The user manually triggered the sync. +- ``tabs``: The user opened the synced tabs sidebar, which triggers a sync. + +syncs.status +~~~~~~~~~~~~ + +The ``engine.status``, ``payload.status.sync``, and ``payload.status.service`` properties are sync error codes, which are listed in `services/sync/modules/constants.js <https://dxr.mozilla.org/mozilla-central/source/services/sync/modules/constants.js>`_, and success values are not reported. + +syncs.failureReason +~~~~~~~~~~~~~~~~~~~ + +Stores error information, if any is present. Always contains the "name" property, which identifies the type of error it is. The types can be. + +- ``httperror``: Indicates that we recieved an HTTP error response code, but are unable to be more specific about the error. Contains the following properties: + + - ``code``: Integer HTTP status code. + +- ``nserror``: Indicates that an exception with the provided error code caused sync to fail. + + - ``code``: The nsresult error code (integer). + +- ``shutdownerror``: Indicates that the sync failed because we shut down before completion. + +- ``autherror``: Indicates an unrecoverable authentication error. + + - ``from``: Where the authentication error occurred, one of the following values: ``tokenserver``, ``fxaccounts``, or ``hawkclient``. + +- ``othererror``: Indicates that it is a sync error code that we are unable to give more specific information on. As with the ``syncStatus`` property, it is a sync error code, which are listed in `services/sync/modules/constants.js <https://dxr.mozilla.org/mozilla-central/source/services/sync/modules/constants.js>`_. + + - ``error``: String identifying which error was present. + +- ``unexpectederror``: Indicates that some other error caused sync to fail, typically an uncaught exception. + + - ``error``: The message provided by the error. + +- ``sqlerror``: Indicates that we recieved a ``mozIStorageError`` from a database query. + + - ``code``: Value of the ``error.result`` property, one of the constants listed `here <https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/MozIStorageError#Constants>`_. + +syncs.engine.name +~~~~~~~~~~~~~~~~~ + +Third-party engines are not reported, so only the following values are allowed: ``addons``, ``bookmarks``, ``clients``, ``forms``, ``history``, ``passwords``, ``prefs``, and ``tabs``. + +syncs.engine.validation.problems +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +For engines that can run validation on themselves, an array of objects describing validation errors that have occurred. Items that would have a count of 0 are excluded. Each engine will have its own set of items that it might put in the ``name`` field, but there are a finite number. See ``BookmarkProblemData.getSummary`` in `services/sync/modules/bookmark\_validator.js <https://dxr.mozilla.org/mozilla-central/source/services/sync/modules/bookmark_validator.js>`_ for an example. + +syncs.devices +~~~~~~~~~~~~~ + +The list of remote devices associated with this account, as reported by the clients collection. The ID of each device is hashed using the same algorithm as the local id. |