User telemetry

Performance data of certain user actions

Introduced in v3.4.0

The app collects performance data on certain user actions which is then aggregated each day and replicated to the server. This can be used to evaluate the performance of the code and configuration and to evaluate where improvements can be made.

The aggregate doc for the previous day is created when the first telemetry item is recorded each day. This is stored in the medic-user-<username>-meta database on the device and replicated to the server when an internet connection is available. This user specific server db is then replicated into the medic-users-meta database which holds all aggregate telemetry docs for all users.

The aggregate docs’ IDs follow the pattern telemetry-<year>-<month>-<day>-<username>-<uuid>.

Note

Versions prior to v3.12.0 do aggregate in a monthly basis instead of daily, and the aggregate docs’ IDs follow the pattern telemetry-<year>-<month>-<username>-<uuid>.

Performance data

Each aggregate data point has the following fields.

Field	Description
`sum`	A sum of all the recorded times in milliseconds.
`min`	The smallest time recorded in milliseconds.
`max`	The largest time recorded in milliseconds.
`count`	The number of times recorded.
`sumsqr`	The sum of squares of the times recorded in milliseconds.

The telemetry data gathered changes with different versions of the framework. Currently, the data points collected are:

Field	Description
`boot_time`	The overall boot time including loading the code, purging, and accessing the database.
`boot_time:1:to_first_code_execution`	The time between the page loading and the JavaScript starting to run.
`boot_time:2:to_bootstrap`	The time between JavaScript starting and the bootstrapping (purging, initial replication, etc) to complete.
`boot_time:2_1:to_replication`	The time it took to complete initial replication. If initial replication was interrupted and retried, this value will be incorrect. Added in 3.14.
`boot_time:2_2:to_purge`	The time it takes to complete the purge. Added in 3.14.
`boot_time:2_3:to_purge_meta`	The time it takes to complete the purge of local meta database. Added in 3.14.
`boot_time:3:to_angular_bootstrap`	The time between bootstrapping completing and the webapp being ready to use.
`boot_time:4:to_db_warmed`	The time between the webapp being ready to use and the database being ready to use.
`boot_time:purging:<boolean>`	`boot_time:purging:true` when purging ran successfully on device startup, `boot_time:purging:false` when purging did not run. Added in 3.14.
`boot_time:purging_failed`	The purging failed when running on device startup. Added in 3.14.
`boot_time:purging_meta:<boolean>`	`boot_time:purging_meta:true` when purging of the local meta database ran successfully, `boot_time:purging_meta:false` when it did not run. Added in 3.14.
`boot_time:purging_meta_failed`	The purging of the local meta database failed. Added in 3.14.
`enketo:reports:<form>:<action>:<component>`	The time taken to fill in Enketo forms. The `action` can either be “add” or “edit”. The `component` is one of: “render” covers getting the form and rendering it on screen; “user_edit_time” is the time the user took to fill in and submit the form; or “save” is about converting the form into a report and saving it.
`enketo:contacts:<form>:<action>:<component>`	As above but for Contact forms. The `action` can either be “add” or “edit”.
`enketo:tasks:<form>:<action>:<component>`	As above but for forms on the Tasks tab.
`search:contacts`	The time taken to list all contacts.
`search:contacts:<filter[:filter]>`	The time taken to search all contacts using the given filters.
`search:reports`	The time taken to list all reports.
`search:reports:<filter[:filter]>`	The time taken to search all reports using the given filters.
`sidebar_filter:reports:open`	Number of times the user opens the sidebar filter in Reports tab.
`client-date-offset`	The difference between the client datetime and the server datetime. Only recorded if the difference is large enough that it may cause issues.
`analytics:targets:load`	The time taken to load the targets page. Added in 3.9
`tasks:load`	The time taken to load the tasks page. Added in 3.9
`tasks:refresh`	The time taken to refresh tasks on the tasks page. Added in 3.9
`rules-engine:initialize`	The time taken to initialize the rules-engine . Added in 3.9
`rules-engine:update-emissions`	The time taken to update emissions in the rules-engine, when receiving a change. Added in 3.9
`rules-engine:tasks:all-contacts`	The time taken to fetch tasks for all contacts in rules-engine. Added in 3.9
`rules-engine:tasks:some-contacts`	The time taken to fetch tasks for some specific contacts in rules-engine. Added in 3.9
`rules-engine:targets`	Time taken for the rules-engine to fetch targets. Added in 3.9
`rules-engine:targets:dirty-contacts`	Number of “dirty” contacts[1] when fetching targets in the rules-engine. Added in 3.9
`rules-engine:tasks:dirty-contacts`	Number of “dirty” contacts[1] when fetching tasks in the rules-engine. Added in 3.9
`rules-engine:ensureTaskFreshness:cancel`	The time taken to cancel the automated task freshness thread in the rules-engine. This event is only recorded when the thread is cancelled before executing the refresh. Added in 3.9
`rules-engine:ensureTargetFreshness:cancel`	The time taken to cancel the automated target freshness thread in the rules-engine. This event is only recorded when the thread is cancelled before executing the refresh. Added in 3.9
`rules-engine:tasks-breakdown:some-contacts`	The time taken to fetch the tasks breakdown by status for some contacts. Added in 3.13.
`replication:user-initiated`	Number of times the user clicked “Sync now”. Added in 3.12.
`replication:<database>:<direction>:success`	Time taken to replicate, when replication was successful. Added in 3.12.
`replication:<database>:<direction>:failure`	Time taken to replicate, when replication failed. Added in 3.12.
`replication:<database>:<direction>:failure:reason:offline:client`	Number of times replication failed because of connection errors, and the app detects the client is offline. Added in 3.12.
`replication:<database>:<direction>:failure:reason:offline:server`	Number of times replication failed because of connection errors, and the app detects the client is online. Added in 3.12.
`replication:<database>:<direction>:failure:reason:error`	Number of times replication failed because of errors other than connection errors. Added in 3.12.
`replication:<database>:<direction>:docs`	Number of replicated docs. For `medic` replication, stores number of “read” docs, for `meta` replication, stores sum of read docs for every direction. Added in 3.12.
`replication:medic:<direction>:ms-since-last-replicated-date`	Time between a replication attempt and the last successful replication. Only recorded for medic database, every time replication is attempted. Added in 3.12.
`replication:medic:<direction>:denied`	Number of times replication was denied[2]. Added in 3.12.
`tasks:group:all-tasks`	Total number of tasks for the household (includes all statuses), when displaying household tasks page. Added in 3.13.
`tasks:group:cancelled`	Number of cancelled tasks for the household, when displaying household tasks page. Added in 3.13.
`tasks:group:ready`	Number of tasks in “Ready” state for the household, when displaying household tasks page. Added in 3.13.
`tasks:group:ready:<task_title>`	Breakdown of “Ready” tasks by `task_title` for the household, when displaying household tasks page. Added in 3.13.
`tasks:group:modal:confirm`	Number times the user confirms navigation away from the household tasks page. Added in 3.13.
`tasks:group:modal:reject`	Number times the user rejects navigation away from the household tasks page. Added in 3.13.
`user_settings:language:<language_code>`	The selected language by the user, example: `user_settings:language:en`. Added in 3.14.
`enketo:<training-card>:add:render`	The time it took to render the training card. Added in 4.2.0
`enketo:<training-card>:add:user_edit_time`	The time the user took to complete the training card. Added in 4.2.0
`enketo:<training-card>:add:save`	The time it took to save the training card. Added in 4.2.0
`enketo:<training-card>:add:quit`	The time from when the training card was rendered to when the user quits the training. Added in 4.2.0
`geolocation:success`	A successful GPS response with the value showing the accuracy.
`geolocation:failure:<x>`	An unsuccessful GPS response. `x` is a constant matching the GeolocationPositionError or with one of the following values: `-1` unknown failure, `-2` timeout, or `-3` geolocation services unavailable.

[1] “Dirty” indicates that the contact’s task documents are not up to date. They will be refreshed before being used.
[2] Replication can be denied when the user doesn’t have permissions to create a doc (hierarchy permissions) or when a doc fails a validate_doc_update check.

Unless otherwise specified, database and direction placeholders stand for any combination of:

database	direction
`medic`	`from` or `to`
`meta`	`sync`

Metadata

When the aggregate doc is created the Telemetry service also includes a snapshot of some metadata.

Field	Description
`year`	The year the data was collected. Added in 3.4.0.
`month`	The month the data was collected. Initially the month was 0 indexed (eg: 0=Jan, 1=Feb, …), but from 3.8.0 this bug was fixed so it changed to 1 indexed (eg: 1=Jan, 2=Feb, …). Added in 3.4.0.
`day`	The day of the month the data was collected. Added in 3.12.0.
`user`	The username of the logged in user. Added in 3.4.0.
`deviceId`	A unique key for this device. Added in 3.4.0.
`versions.app`	The version of the webapp. Added in 3.5.0.
`versions.forms.<form>`	The version of each form. Added in 3.5.0.
`userAgent`	The userAgent string from the user’s browser. Added in 3.4.0.
`hardwareConcurrency`	The number of cores reported from the browser. Added in 3.4.0.
`screen.width`	The width of the screen in pixels. Added in 3.4.0.
`screen.height`	The height of the screen in pixels. Added in 3.4.0.
`deviceInfo.app.version`	The version name of the Android app. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.app.packageName`	The package name of the Android app. Only captured when running in the Android wrapper v0.9.0+. Added in 3.12.0.
`deviceInfo.app.versionCode`	The Internal version code of the Android app. Only captured when running in the Android wrapper v0.9.0+. Added in 3.12.0.
`deviceInfo.software.androidVersion`	The version of Android OS. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.software.osApiLevel`	The API of the Android OS. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.software.osVersion`	The version of Android OS (detailed). Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.hardware.device`	The Android device name. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.hardware.model`	The Android model name. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.hardware.manufacturer`	The Android device manufacturer. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.hardware.hardware`	The Android device hardware. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.hardware.cpuInfo`	The Android device CPU information. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.storage.free`	The available storage on the device. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.storage.total`	The total storage on the device. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.ram.free`	The available RAM on the device. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.ram.total`	The total RAM on the device. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.ram.threshold`	The level of RAM at which certain services will be killed by Android. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.network.downSpeed`	The reported download speed of the network. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`deviceInfo.network.upSpeed`	The reported upload speed of the network. Only captured when running in the Android wrapper v0.4.0+. Added in 3.8.0.
`dbInfo.doc_count`	The number of docs in the local database. Added in 3.4.0.
`dbInfo.update_seq`	The update sequence of the local database. Added in 3.4.0.
`dbInfo.idb_attachment_format`	The format of database attachments. Added in 3.4.0.
`dbInfo.db_name`	The name of the local database. Added in 3.4.0.
`dbInfo.auto_compaction`	Whether or not auto compaction is set. Added in 3.4.0.
`dbInfo.adapter`	The database adapter being used. Added in 3.4.0.

Export data to JSON

Note

Telemetry data can be viewed directly in your browser with Fauxton at https://{{CHT_INSTANCE_URL}}/_utils, and navigating the medic-users-meta database.

To export all telemetry in JSON for further analysis or visualization, first meet these prerequisites:

Ensure that both node and npm are installed and that the needed node libraries are installed: npm install inquirer pouchdb-core fs path minimist pouchdb-adapter-http
Get a current copy of the export script: curl -s -o get_users_meta_docs.js https://raw.githubusercontent.com/medic/cht-core/master/scripts/get_users_meta_docs.js

To export the data open a terminal in the folder where you want to save the export, and run this command:

node get_users_meta_docs.js --mode batch --type telemetry https://USERNAME:PASSWORD@COUCHDB_SERVER:COUCHDB_PORT/medic-users-meta > telemetry.json

For example, if your username is admin, your password is pass, your CouchDB server is localhost and your CouchDB port is 5984, you would run:

node get_users_meta_docs.js --mode batch --type telemetry https://admin:pass@localhost:5984/medic-users-meta > telemetry.json

This will save a file named telemetry.json containing all the telemetry data in the current directory.

Code Samples

Logged in from the browser

{
  "_id": "telemetry-2020-5-medic-016304ab-7167-4c97-93bb-a6626ef6128d",
  "_rev": "1-90a94d76eb30ac47e2f498b80cf54cd1",
  "type": "telemetry",
  "metrics": {
    "boot_time": {
      "sum": 3879.43500012625,
      "min": 308.0550000304356,
      "max": 1110.6599999475293,
      "count": 7,
      "sumsqr": 2616858.529000253
    },
    "boot_time:1:to_first_code_execution": {
      "sum": 2096.309999935329,
      "min": 141.66500000283122,
      "max": 558.6599999805912,
      "count": 8,
      "sumsqr": 672987.1618553334
    },
    "boot_time:2:to_bootstrap": {
      "sum": 628.5150001058355,
      "min": 70.50499995239079,
      "max": 129.88000002223998,
      "count": 7,
      "sumsqr": 58704.48214660012
    },
    "boot_time:3:to_angular_bootstrap": {
      "sum": 1415.5550000723451,
      "min": 45.25000008288771,
      "max": 787.9549999488518,
      "count": 7,
      "sumsqr": 732805.5498113176
    },
    "search:contacts:types": {
      "sum": 3728.9899999741465,
      "min": 96.60000004805624,
      "max": 1134.1099999845028,
      "count": 8,
      "sumsqr": 2939824.639961114
    },
    "search:reports:subjectIds": {
      "sum": 3825.224999745842,
      "min": 27.304999995976686,
      "max": 982.2900000144728,
      "count": 25,
      "sumsqr": 1461182.0137715642
    }
  },
  "metadata": {
    "year": 2020,
    "month": 5,
    "day": 20,
    "user": "medic",
    "deviceId": "016304ab-7167-4c97-93bb-a6626ef6128d",
    "versions": {
      "app": "master",
      "forms": {
        "client_review": "2-51ad4bd1c86c18ea768196da8264147e",
        "contact:clinic:create": "16-8dbb4dde6f8f9067e9cbed5b44ce5fd0",
        "contact:clinic:edit": "2-c1c955042db963a95470bdf891bcef6f",
        "contact:district_hospital:create": "2-42b8b579b38ca6c2978c238e7d9c78fe",
        "contact:district_hospital:edit": "2-4360bb0eb6f6ff863849a07adac7e851",
        "contact:health_center:create": "2-c9b86820479f211c8e505eba150c5203",
        "contact:health_center:edit": "2-19b3da5f9f146be07ec1854a372e374b",
        "contact:person:create": "2-230d39c41682da720b83e4909b138c9b",
        "contact:person:edit": "6-75781492122157beb7c2451861970ece",
        "death_report": "2-97cfa3cc24ee743dfea03c019d644bec",
        "delivery": "2-adf37c0da7d5e58c8e4d27fc940f70e6",
        "enroll": "10-13322d437e301f3c436e3b989a3fd384",
        "no_contact": "4-0901afd126ec6c87fe952ca3c3a652ed",
        "pnc_danger_sign_follow_up_baby": "2-12e8989f6774828bb10aa4b675bc43ff",
        "pnc_danger_sign_follow_up_mother": "2-62f58b6e0ade10d70f15df73ddb6a025",
        "pregnancy": "2-4fa3db96cae638c4cb041125c9970496",
        "pregnancy_danger_sign": "2-49758bfd894fb5db6e719bff864f9da9",
        "pregnancy_danger_sign_follow_up": "2-a9a2b6800d6f93e151a3a63359620976",
        "pregnancy_facility_visit_reminder": "2-0e3deaf22966166d05bcf803615499c8",
        "pregnancy_home_visit": "2-283eb323e61a7fc756bda61f9d9be382",
        "referral_for_care": "2-627c6c21bd54e482133acc8188a71f8d",
        "undo_death_report": "2-3a4ca8d678f0338d7044cb1bc35d103d"
      }
    }
  },
  "device": {
    "userAgent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.106 Safari/537.36",
    "hardwareConcurrency": 4,
    "screen": {
      "width": 1920,
      "height": 1080
    },
    "deviceInfo": {}
  },
  "dbInfo": {
    "db_name": "medic",
    "purge_seq": "0-g1AAAAEzeJzLYWBg4MhgTmHgzcvPy09JdcjLz8gvLskBCjPlsQBJhgNA6v____ezEhnwqnsAUfefkLoFEHX7CalrgKibj1tdkgKQTLLHa2dSAkhNPX41DiA18XjVJDIkyUMUZAEAuYBi9g",
    "update_seq": "1456-g1AAAAE2eJzLYWBg4MhgTmHgzcvPy09JdcjLz8gvLskBCjMlMiTJ____PytxAg4FSQpAMskerGYhLjUOIDXxYDVTcKlJAKmpB6tZhENNHguQZGgAUkBl87MSl-JVtwCibn9WYjtedQcg6u7jdj9E3QOIuv9ZSQwMjDVZAFZfZ6g",
    "sizes": {
      "file": 67196510,
      "external": 65800620,
      "active": 65357308
    },
    "other": {
      "data_size": 65800620
    },
    "doc_del_count": 41,
    "doc_count": 497,
    "disk_size": 67196510,
    "disk_format_version": 7,
    "data_size": 65357308,
    "compact_running": false,
    "cluster": {
      "q": 8,
      "n": 1,
      "w": 1,
      "r": 1
    },
    "instance_start_time": "0",
    "host": "http://localhost:5988/medic/",
    "auto_compaction": false,
    "adapter": "http"
  }
}