Files
greptimedb/tests-integration
shuiyisong fd74b9239e feat(otlp): store validated metric exemplars (#9923)
* feat(otlp): persist metric exemplars

OTLP metric conversion now emits exemplars through the shared storage contract. It validates timestamps, IDs, values and label budgets, and associates histogram exemplars only with emitted buckets that contain their values. Invalid observations are dropped and counted while valid points and siblings remain ingestible.

Frontend ingestion authorizes the emitted destinations and retains confirmed completions across metric and exemplar writes, including logical-table batching. Includes conversion and schema-failure isolation tests; tests that also query the new Prometheus endpoint land in the final layer.

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* feat(otlp): bind exemplars to source metric identities

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix(otlp): bound exemplar memory and preserve series

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix(otlp): skip exemplars without metric engine

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix(otlp): skip exemplars for ordinary tables

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* refactor(exemplar)!: prefix the shared table name

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

* fix(otlp): avoid waiting with body permits held

Signed-off-by: shuiyisong <xixing.sys@gmail.com>

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Signed-off-by: shuiyisong <xixing.sys@gmail.com>
2026-11-04 10:09:57 +00:00
..

Setup tests for multiple storage backend

To run the integration test, please copy .env.example to .env in the project root folder and change the values on need.

Take s3 for example. You need to set your S3 bucket, access key id and secret key:

# Settings for s3 test
GT_S3_BUCKET=S3 bucket
GT_S3_REGION=S3 region
GT_S3_ACCESS_KEY_ID=S3 access key id
GT_S3_ACCESS_KEY=S3 secret access key

Run

Execute the following command in the project root folder:

cargo test integration

Test s3 storage:

cargo test s3

Test oss storage:

cargo test oss

Test azblob storage:

cargo test azblob

Setup tests with Kafka wal

To run the integration test, please copy .env.example to .env in the project root folder and change the values on need.

GT_KAFKA_ENDPOINTS = localhost:9092

Setup kafka standalone

cd tests-integration/fixtures

docker compose -f docker-compose.yml up kafka

Setup tests with etcd TLS

This guide explains how to set up and test TLS-enabled etcd connections in GreptimeDB integration tests.

Quick Start

TLS certificates are already at tests-integration/fixtures/etcd-tls-certs/.

  1. Start TLS-enabled etcd:

    cd tests-integration/fixtures
    docker compose up etcd-tls -d
    
  2. Start all services (including etcd-tls):

    cd tests-integration/fixtures
    docker compose up -d --wait
    

Certificate Details

The checked-in certificates include:

  • ca.crt - Certificate Authority certificate
  • server.crt / server-key.pem - Server certificate for etcd-tls service
  • client.crt / client-key.pem - Client certificate for connecting to etcd-tls

The server certificate includes SANs for localhost, etcd-tls, 127.0.0.1, and ::1.

Regenerating Certificates (Optional)

If you need to regenerate the etcd certificates:

# Regenerate certificates (overwrites existing ones)
./scripts/generate-etcd-tls-certs.sh

# Or generate in custom location
./scripts/generate-etcd-tls-certs.sh /path/to/cert/directory

If you need to regenerate the mysql and postgres certificates:

# Regenerate certificates (overwrites existing ones)
./scripts/generate_certs.sh

# Or generate in custom location
./scripts/generate_certs.sh /path/to/cert/directory

Note: The checked-in certificates are for testing purposes only and should never be used in production.