737a317a62 | ||
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.circleci | ||
configs | ||
docker | ||
docs/amplitude | ||
project | ||
src | ||
.gitignore | ||
.jvmopts | ||
CODE_OF_CONDUCT.md | ||
README.md | ||
build.sbt | ||
docker_setup.sh |
README.md
This repository is no longer in use at Mozilla! It was designed to be run on our AWS-based telemetry infrastructure
telemetry-streaming
Spark Streaming ETL jobs for Mozilla Telemetry
This service currently contains jobs that aggregate error data
on 5 minute intervals. It is responsible for generating the (internal only)
error_aggregates
and experiment_error_aggregates
parquet tables at
Mozilla.
Issue Tracking
Please file bugs related to the error aggregates streaming job in the Datasets: Error Aggregates component.
Deployment
The jobs defined in this repository are generally deployed as streaming jobs within our hosted Databricks account, but some are deployed as periodic batch jobs via Airflow using wrappers codified in telemetry-airflow that spin up EMR clusters whose configuration is governed by emr-bootstrap-spark. Changes in production behavior that don't seem to correspond to changes in this repository's code could be related to changes in those other projects.
Amplitude Event Configuration
Some of the jobs defined in telemetry-streaming
exist to transform telemetry events
and republish to Amplitude for further analysis.
Filtering and transforming events is accomplished via JSON configurations.
If you're creating or updating such a schema, see:
Development
The recommended workflow for running tests is to use your favorite editor for editing the source code and running the tests via sbt. Some common invocations for sbt:
sbt test # run the basic set of tests (good enough for most purposes)
sbt "testOnly *ErrorAgg*" # run the tests only for packages matching ErrorAgg
sbt "testOnly *ErrorAgg* -- -z version" # run the tests only for packages matching ErrorAgg, limited to test cases with "version" in them
sbt dockerComposeTest # run the docker compose tests (slow)
sbt "dockerComposeTest -tags:DockerComposeTag" # run only tests with DockerComposeTag (while using docker)
sbt scalastyle test:scalastyle # run linter
sbt ci # run the full set of continuous integration tests
Some tests need Kafka to run. If one prefers to run them via IDE, it's required to run the test cluster:
sbt dockerComposeUp
or via plain docker-compose:
export DOCKER_KAFKA_HOST=$(./docker_setup.sh)
docker-compose -f docker/docker-compose.yml up
It's also good to shut down the cluster afterwards:
sbt dockerComposeStop