Added bigquery support (#16)

* Added BigQuery support

* Update bigquery.py

Author: lyowang

examples/bigquery/README.md

@@ -0,0 +1,22 @@
+## Schema
+
+See [schema.sql](schema.sql) for the example schema.
+
+## Usage
+
+Define BigQuery connection details via environment variables:
+
+```bash
+export BIGQUERY_PROJECT_ID=...
+export BIGQUERY_DATASET=...
+export BIGQUERY_VAULT_SECRET=...
+```
+or in `hunter.yaml`.
+
+Also configure the credentials. See [config_credentials.sh](config_credentials.sh) for an example.
+
+The following command shows results for a single test `aggregate_mem` and updates the database with newly found change points:
+
+```bash
+$ BRANCH=trunk HUNTER_CONFIG=hunter.yaml hunter analyze aggregate_mem --update-bigquery
+```

examples/bigquery/config_credentials.sh

@@ -0,0 +1,8 @@
+# Configure the GCP BigQuery key.
+touch bigquery_credentials.json
+export BIGQUERY_CREDENTIALS=$(readlink -f bigquery_credentials.json)
+echo "Loading ${BIGQUERY_CREDENTIALS} to export analysis summaries to BigQuery/Metabase."
+# ie: export BIGQUERY_VAULT_SECRET=v1/ci/kv/gcp/flink_sql_bigquery
+vault kv get -field=json "${BIGQUERY_VAULT_SECRET}" > "${BIGQUERY_CREDENTIALS}"
+# You may also copy your credential json directly to the bigquery_credentials.json for this to work.
+chmod 600 "${BIGQUERY_CREDENTIALS}"

examples/bigquery/hunter.yaml

@@ -0,0 +1,53 @@
+# External systems connectors configuration:
+bigquery:
+  project_id: ${BIGQUERY_PROJECT_ID}
+  dataset: ${BIGQUERY_DATASET}
+  credentials: ${BIGQUERY_CREDENTIALS}
+
+# Templates define common bits shared between test definitions:
+templates:
+  common:
+    type: bigquery
+    time_column: commit_ts
+    attributes: [experiment_id, config_id, commit]
+    # required for --update-bigquery to work
+    update_statement: |
+      UPDATE ${BIGQUERY_PROJECT_ID}.${BIGQUERY_DATASET}.results 
+        SET {metric}_rel_forward_change=%s, 
+            {metric}_rel_backward_change=%s, 
+            {metric}_p_value=%s
+      WHERE experiment_id = '{experiment_id}' AND config_id = {config_id}
+    metrics:
+      process_cumulative_rate_mean:
+        direction: 1
+        scale: 1
+      process_cumulative_rate_stderr:
+        direction: -1
+        scale: 1
+      process_cumulative_rate_diff:
+        direction: -1
+        scale: 1
+
+# Define your tests here:
+tests:
+  aggregate_mem:
+    inherit: [ common ] # avoids repeating metrics definitions and postgres-related config
+    query: |
+      SELECT e.commit, 
+             e.commit_ts, 
+             r.process_cumulative_rate_mean, 
+             r.process_cumulative_rate_stderr, 
+             r.process_cumulative_rate_diff, 
+             r.experiment_id, 
+             r.config_id
+      FROM ${BIGQUERY_PROJECT_ID}.${BIGQUERY_DATASET}.results r
+      INNER JOIN ${BIGQUERY_PROJECT_ID}.${BIGQUERY_DATASET}.configs c ON r.config_id = c.id
+      INNER JOIN ${BIGQUERY_PROJECT_ID}.${BIGQUERY_DATASET}.experiments e ON r.experiment_id = e.id
+      WHERE e.exclude_from_analysis = false AND
+            e.branch = 'test-branch' AND
+            e.username = 'ci' AND
+            c.store = 'test-store' AND
+            c.cache = true AND
+            c.benchmark = 'tpcds' AND
+            c.instance_type = 'test-instance'
+      ORDER BY e.commit_ts ASC;

examples/bigquery/schema.sql

@@ -0,0 +1,43 @@
+CREATE TABLE IF NOT EXISTS configs (
+    id BIGINT PRIMARY KEY NOT ENFORCED,
+    benchmark STRING NOT NULL,
+    scenario STRING NOT NULL,
+    store STRING NOT NULL,
+    instance_type STRING NOT NULL,
+    cache BOOLEAN NOT NULL
+);
+
+CREATE TABLE IF NOT EXISTS experiments (
+    id BIGINT PRIMARY KEY NOT ENFORCED,
+    ts TIMESTAMP NOT NULL,
+    branch STRING NOT NULL,
+    commit STRING NOT NULL,
+    commit_ts TIMESTAMP NOT NULL,
+    username STRING NOT NULL,
+    details_url STRING NOT NULL,
+    exclude_from_analysis BOOLEAN DEFAULT false NOT NULL,
+    exclude_reason STRING
+);
+
+CREATE TABLE IF NOT EXISTS results (
+    experiment_id BIGINT NOT NULL REFERENCES flink_sql.experiments(id) NOT ENFORCED,
+    config_id BIGINT NOT NULL REFERENCES flink_sql.configs(id) NOT ENFORCED,
+
+    process_cumulative_rate_mean BIGINT NOT NULL,
+    process_cumulative_rate_stderr BIGINT NOT NULL,
+    process_cumulative_rate_diff BIGINT NOT NULL,
+
+    process_cumulative_rate_mean_rel_forward_change FLOAT64,
+    process_cumulative_rate_mean_rel_backward_change FLOAT64,
+    process_cumulative_rate_mean_p_value DECIMAL,
+
+    process_cumulative_rate_stderr_rel_forward_change FLOAT64,
+    process_cumulative_rate_stderr_rel_backward_change FLOAT64,
+    process_cumulative_rate_stderr_p_value DECIMAL,
+
+    process_cumulative_rate_diff_rel_forward_change FLOAT64,
+    process_cumulative_rate_diff_rel_backward_change FLOAT64,
+    process_cumulative_rate_diff_p_value DECIMAL,
+
+    PRIMARY KEY (experiment_id, config_id) NOT ENFORCED
+);

hunter/bigquery.py

@@ -0,0 +1,68 @@
+from dataclasses import dataclass
+from datetime import datetime
+from typing import Dict
+
+from google.cloud import bigquery
+from google.oauth2 import service_account
+
+from hunter.analysis import ChangePoint
+from hunter.test_config import BigQueryTestConfig
+
+
+@dataclass
+class BigQueryConfig:
+    project_id: str
+    dataset: str
+    credentials: str
+
+
+@dataclass
+class BigQueryError(Exception):
+    message: str
+
+
+class BigQuery:
+    __client = None
+    __config = None
+
+    def __init__(self, config: BigQueryConfig):
+        self.__config = config
+
+    @property
+    def client(self) -> bigquery.Client:
+        if self.__client is None:
+            credentials = service_account.Credentials.from_service_account_file(
+                self.__config.credentials,
+                scopes=["https://www.googleapis.com/auth/cloud-platform"],
+            )
+            self.__client = bigquery.Client(credentials=credentials, project=credentials.project_id)
+        return self.__client
+
+    def fetch_data(self, query: str):
+        query_job = self.client.query(query)  # API request
+        results = query_job.result()
+        columns = [field.name for field in results.schema]
+        return (columns, results)
+
+    def insert_change_point(
+        self,
+        test: BigQueryTestConfig,
+        metric_name: str,
+        attributes: Dict,
+        change_point: ChangePoint,
+    ):
+        kwargs = {**attributes, **{test.time_column: datetime.utcfromtimestamp(change_point.time)}}
+        update_stmt = test.update_stmt.format(
+            metric=metric_name,
+            forward_change_percent=change_point.forward_change_percent(),
+            backward_change_percent=change_point.backward_change_percent(),
+            p_value=change_point.stats.pvalue,
+            **kwargs
+        )
+        query_job = self.client.query(update_stmt)
+
+        # Wait for the query to finish
+        query_job.result()
+
+        # Output the number of rows affected
+        print("Affected rows: {}".format(query_job.num_dml_affected_rows))

hunter/config.py

@@ -6,6 +6,7 @@
 from expandvars import expandvars
 from ruamel.yaml import YAML
 
+from hunter.bigquery import BigQueryConfig
 from hunter.grafana import GrafanaConfig
 from hunter.graphite import GraphiteConfig
 from hunter.postgres import PostgresConfig
@@ -22,6 +23,7 @@ class Config:
     test_groups: Dict[str, List[TestConfig]]
     slack: SlackConfig
     postgres: PostgresConfig
+    bigquery: BigQueryConfig
 
 
 @dataclass
@@ -133,6 +135,14 @@ def load_config_from(config_file: Path) -> Config:
                 database=config["postgres"]["database"],
             )
 
+        bigquery_config = None
+        if config.get("bigquery") is not None:
+            bigquery_config = BigQueryConfig(
+                project_id=config["bigquery"]["project_id"],
+                dataset=config["bigquery"]["dataset"],
+                credentials=config["bigquery"]["credentials"],
+            )
+
         templates = load_templates(config)
         tests = load_tests(config, templates)
         groups = load_test_groups(config, tests)
@@ -142,6 +152,7 @@ def load_config_from(config_file: Path) -> Config:
             grafana=grafana_config,
             slack=slack_config,
             postgres=postgres_config,
+            bigquery=bigquery_config,
             tests=tests,
             test_groups=groups,
         )