Vytváření a správa clusterů

Databricks with the Python SDK

Avi Steinberg

Senior Software Engineer

Bezserverová vs. spravovaná infrastruktura

Bezserverová

  • Infrastruktura plně spravovaná Databricks
  • Soustředění na kód, nikoli na infrastrukturu
  • Platba za výpočetní výkon podle potřeby

Spravovaná

  • Větší kontrola nad konfigurací
  • Nižší náklady pro dlouhodobé nebo předvídatelné úlohy
Databricks with the Python SDK

Vytvoření Spark clusteru v Databricks

from databricks.sdk import WorkspaceClient

w = WorkspaceClient()
cluster = w.clusters.create(
    cluster_name="datacamp-cluster-name",

spark_version="latest",
autotermination_minutes=20,
num_workers=3, ).result()
1 https://databricks-sdk-py.readthedocs.io/en/latest/workspace/compute/clusters.html
Databricks with the Python SDK

Výpis clusterů

from databricks.sdk import WorkspaceClient
# Instantiate WorkspaceClient
w = WorkspaceClient()

# Print id of each cluster in workspace
clusters = w.clusters.list()
for cluster in clusters:
    print(f"ClusterId={cluster.cluster_id}")

Output:

ClusterId=0113-13328-woj98c32
1 https://databricks-sdk-py.readthedocs.io/en/latest/workspace/compute/clusters.html
Databricks with the Python SDK

Spuštění clusteru

from databricks.sdk import WorkspaceClient
import os

w = WorkspaceClient()
cluster_id=os.environ["DATABRICKS_CLUSTER_ID"]

# Start cluster with id stored in cluster_id variable
try:
  w.clusters.start(cluster_id=cluster_id).result()
except: 
  print(f"Cannot start cluster_id={cluster_id} because it is already running")
1 https://databricks-sdk-py.readthedocs.io/en/latest/workspace/compute/clusters.html
Databricks with the Python SDK

Zjištění stavu clusteru

from databricks.sdk import WorkspaceClient
import os

w = WorkspaceClient()

# Print state of cluster
cluster_info = w.clusters.get(cluster_id=os.environ["DATABRICKS_CLUSTER_ID"])
print(f"cluster state={cluster_info.state}")

Output:

cluster state=State.RUNNING
1 https://databricks-sdk-py.readthedocs.io/en/latest/workspace/compute/clusters.html
Databricks with the Python SDK

Smazání clusteru

from databricks.sdk import WorkspaceClient
import os

w = WorkspaceClient()
# Delete databricks cluster, with id stored in an environment variable
w.clusters.delete(cluster_id=os.environ["DATABRICKS_CLUSTER_ID"])

cluster_info = w.clusters.get(cluster_id=os.environ["DATABRICKS_CLUSTER_ID"]) print(f"cluster state={cluster_info.state}")
Output: 
cluster state=State.TERMINATED
Databricks with the Python SDK

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Databricks with the Python SDK

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