Is there any way to automatically start a Databricks cluster when an event occurs, such as the cluster terminating for some reason, and have the Databricks cluster restart automatically thereafter ? It should avoid manual start.
I am completely new to Databricks AWS and start working on it a week ago. Pls excuse me if I ask or did something silly.I created a workspace and a single node cluster for testing. A metastore was created from Databricks quickstart and it was automa...
I restarted the compute node and this problem went away.ErrorClass=METASTORE_DOES_NOT_EXIST] Metastore 'b11fb1a0-a462-4dfb-b91b-e0795fde10b0' does not exist.New question: I am testing Databricks with non-AWS S3 object storage. I can access the non-A...
Recently we are using structured streaming to ingest data. We want to use watermark to drop duplicated event. But We encountered some wired behavior and unexpected exception. Anyone can help me to explain what is the expected behavior and how should ...
I just started to read `zstd` compressed file in Databricks on Azure, Runtime 14.1 on Spark 3.5.0I've set PySpark commands as followspath = f"wasbs://{container}@{storageaccount}.blob.core.windows.net/test-zstd" schema = "some schema" df = spark.read...
The available compression types are format dependent.For json, zstd is not (yet) available, whereas for parquet it is.
I there a way to un-redact the logging of error message ?Alternatively would be nice to have access to the source code of involved classes like : com.databricks.backend.common.util.CommandLineHelper or com.databricks.util.UntrustedUtils I'm getting t...
Hi, I am deploying Databricks SQL alerts using REST API. But I can't seem to figure out how to schedule their refresh task.I went through the documentation it says "Alerts can be scheduled using the sql_task type of the Jobs API, e.g. Jobs/Create"How...
What they mention in the API docs is that you can create a job with sql_task of type Alert. To make it easier you can try creating the job first in the UI first and downloading the JSON config. Here is an example with the main parameters that should ...
Hello all,I'm in the process of optimizing my tables and I'm running into a confusing situation. I have a table named "trace_messages_fg_streaming_event". If I navigate to the Databricks catalog, it shows stats:Size: 6.7GB, Files: 464But when I look ...
I am running a notebook to get secret value from GCP Secret Manager. This is working well with Single user Access Mode, however it fail when i use a cluster with Shared Access mode. I have specified the same GCP service account on both of these clust...
Thanks for your response.I am using a cloud service account (same account that was used to create the workspace) on the cluster properties in case of both the single user cluster and on the shared user cluster. This service account has all the necess...
Hi, Im trying to find out what is bottleneck on cluster when running loading process.Scenario: Loading CDC changes from sql server to Raw zone and merge changes into Bronze zone and then merge Bronze to Silver. All is orchestrated in data factory as ...
stdout and stderr looks okay, do you have the log4j to share? You can make a doc out of it and share the doc here.
Hello team, I am using commons(commons-dbcp2) Datasource which supports default connection pooling in Spring Java application (rest services to fetch databricks data via JDBC template).Initially all works fine and can get the data from databricks via...
I am seeing the same issue with hikari. When a pooled connection is created then the databricks cluster is terminated (or restarted), the HikariDataSource retains a stale session handle.Why does connection.isValid() returns true then executing any qu...
I created a Catalog and ownership was assigned to meI created databricks account-group on UC, added my user to this account-group, Assigned ownership of the catalog to this account-group.I deleted the account-groupNow, the catalog ownership is showin...
Hi, In addition to the previous message, you can refer to https://docs.databricks.com/en/data-governance/unity-catalog/manage-privileges/index.html#assign-a-metastore-admin to get more information on metastore and etc.
Hi,I am having one CDC enabled Delta table. In 256th version, table is having 50 data files. I want all to merge and create a single file. How can I merge all 50 data file and when I query for 256th version, I should get 1 data file? Is there any com...
Hi, ae you talking about merging CSV files? https://community.databricks.com/t5/machine-learning/merge-12-csv-files-in-databricks/td-p/3551#:~:text=Use%20Union()%20method%20to,from%20the%20specified%20set%2Fs.
we are migrating out project from on-premise to azure , so on-premise database is the SQL server that we are using and azure data lake gen2 is the storage location where store data currently and so far we are currently validating record count of each...
Hi,I am trying to delete the data from the external partitioned table, it has around 3 years of data, and the partition is created on the date column.I am trying to delete each partition first and then the schema of the table, which takes around 8hrs...
from pyspark.sql import SparkSessionfrom pyspark.ml.regression import LinearRegressionfrom pyspark.ml.feature import VectorAssemblerfrom pyspark.ml.evaluation import RegressionEvaluatorfrom pyspark.ml import Pipelineimport numpy as np# Create a Spark...
