id stringlengths 7 11 | source stringclasses 1
value | category stringclasses 11
values | title stringlengths 15 214 | text stringlengths 70 30.5k | url stringlengths 57 160 | tags stringlengths 3 113 | created_at int64 1.22B 1.79B |
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se_63127263 | stackoverflow | DATA_ENGINEERING | How to select all columns except 2 of them from a large table on pyspark sql? | How to select all columns except 2 of them from a large table on pyspark sql?
In joining two tables, I would like to select all columns except 2 of them from a large table with many columns on pyspark sql on databricks.
My pyspark sql:
%sql
set hive.support.quoted.identifiers=none;
select a.*, '?!(b.year|b.month)$)... | https://stackoverflow.com/questions/63127263/how-to-select-all-columns-except-2-of-them-from-a-large-table-on-pyspark-sql | python, sql, apache-spark, pyspark, hive | 1,595,912,061 |
se_79424580 | stackoverflow | DATA_ENGINEERING | How to gracefully decomission spark executors | How to gracefully decomission spark executors
I am using df.cache() to cachce a dataframe and using databricks autoscaling with Min instance as 1 and Max instance as 8. But cache don't work properly here because some executors dies in the middle of execution and cached data also got lost.
When I set the min and max in... | https://stackoverflow.com/questions/79424580/how-to-gracefully-decomission-spark-executors | dataframe, apache-spark, databricks, executor | 1,739,088,438 |
se_75048688 | stackoverflow | DATA_ENGINEERING | PicklingError: Could not serialize object: IndexError: tuple index out of range | PicklingError: Could not serialize object: IndexError: tuple index out of range
I initiated pyspark in cmd and performed below to sharpen my skills.
C:\Users\Administrator>SUCCESS: The process with PID 5328 (child process of PID 4476) has been terminated.
SUCCESS: The process with PID 4476 (child process of PID 1092) ... | https://stackoverflow.com/questions/75048688/picklingerror-could-not-serialize-object-indexerror-tuple-index-out-of-range | python, apache-spark, pyspark, rdd | 1,673,189,262 |
se_76328743 | stackoverflow | DATA_ENGINEERING | PySpark error: Append output mode not supported when there are streaming aggregations on streaming DataFrames without watermark | PySpark error: Append output mode not supported when there are streaming aggregations on streaming DataFrames without watermark
I have a kafka topic streaming some user data with each message of the following format:
message1 = {'username': 'user1', 'account_balance': 25.0}
message2 = {'username': 'user2', 'account_ba... | https://stackoverflow.com/questions/76328743/pyspark-error-append-output-mode-not-supported-when-there-are-streaming-aggrega | apache-spark, pyspark, cassandra | 1,684,985,365 |
se_79422491 | stackoverflow | DATA_ENGINEERING | Spark Connect SQL Parsing Exception - Spark 3.5.3 and 3.5.4 | Spark Connect SQL Parsing Exception - Spark 3.5.3 and 3.5.4
I'm running spark connect locally and I keep getting parsing exceptions any time I try to run a pure sql query, even on extremely basic queries.
Im running this on a fresh spark 3.5.4 install:
$SPARK_HOME/sbin/start-connect-server.sh --packages org.apache.spa... | https://stackoverflow.com/questions/79422491/spark-connect-sql-parsing-exception-spark-3-5-3-and-3-5-4 | apache-spark, apache-spark-sql | 1,738,978,123 |
se_72517346 | stackoverflow | DATA_ENGINEERING | Get timestamp in PySpark from GregorianCalendar | Get timestamp in PySpark from GregorianCalendar
The Spark Dataframe has a column where the value is GregorianCalendar as below:
java.util.GregorianCalendar[time=?,areFieldsSet=false,areAllFieldsSet=false,lenient=true,zone=sun.util.calendar.ZoneInfo[id="Etc/UTC",offset=0,dstSavings=0,useDaylight=false,transitions=0,las... | https://stackoverflow.com/questions/72517346/get-timestamp-in-pyspark-from-gregoriancalendar | apache-spark, pyspark, apache-spark-sql, timestamp, gregorian-calendar | 1,654,516,685 |
se_79419664 | stackoverflow | DATA_ENGINEERING | Does a Spark dataframe read from a delta table auto-refresh? | Does a Spark dataframe read from a delta table auto-refresh?
I've inherited some Spark code and am having trouble understanding "why does this even work". Short-short is that I load a DF with info from a delta table, and then join that to a streaming DF. I would expect that that first DF would never refresh itself, ... | https://stackoverflow.com/questions/79419664/does-a-spark-dataframe-read-from-a-delta-table-auto-refresh | scala, apache-spark, databricks, spark-streaming, azure-databricks | 1,738,886,270 |
se_79416930 | stackoverflow | DATA_ENGINEERING | Syntax error at or near CLUSTER when altering clustered column in delta table | Syntax error at or near CLUSTER when altering clustered column in delta table
I'm following delta lake liquid clustering document, and got an error [PARSE_SYNTAX_ERROR] Syntax error at or near 'CLUSTER'.. As I understood, the following code should work since it is supported by delta lake 3.3.
Versions
This is the pyt... | https://stackoverflow.com/questions/79416930/syntax-error-at-or-near-cluster-when-altering-clustered-column-in-delta-table | apache-spark, pyspark, delta-lake | 1,738,822,617 |
se_69041917 | stackoverflow | DATA_ENGINEERING | Apache Spark: "with as" vs "cache" | Apache Spark: "with as" vs "cache"
"With as" SQL clause, also referred as CTE, is known as a handy way to improve readability of the queries. As far as I understand in classic SQL CTE results are NOT cached, and each CTE is just replaced by relevant SQL, and not by resultset of relevant SQL.
So giv... | https://stackoverflow.com/questions/69041917/apache-spark-with-as-vs-cache | sql, apache-spark, hive, common-table-expression | 1,630,658,320 |
se_79420346 | stackoverflow | DATA_ENGINEERING | Syntax error at or near ':'(line 1, pos 2) - PARSE_SYNTAX_ERROR - == SQL == | Syntax error at or near ':'(line 1, pos 2) - PARSE_SYNTAX_ERROR - == SQL ==
I'm trying to read two JSON files at a time from AWS S3 bucket. getting error PARSE_SYNTAX_ERROR
but when i'm reading single file, it is working fine.
Using AWS Glue for execution.
file_paths = [
"s3://test_bt/data/batch_date=20241... | https://stackoverflow.com/questions/79420346/syntax-error-at-or-near-line-1-pos-2-parse-syntax-error-sql | python, amazon-web-services, apache-spark, amazon-s3, pyspark | 1,738,920,294 |
se_65558687 | stackoverflow | DATA_ENGINEERING | DateTime datatype in BigQuery | DateTime datatype in BigQuery
I have a partitioned table where one of the column is of type DateTime and the table is partitioned on same column. According to spark-bigquery documentation, the corresponding Spark SQL type is of String type.
https://github.com/GoogleCloudDataproc/spark-bigquery-connector
I tried doing... | https://stackoverflow.com/questions/65558687/datetime-datatype-in-bigquery | apache-spark, google-bigquery | 1,609,743,013 |
se_79414317 | stackoverflow | DATA_ENGINEERING | Apache Spark and pyspark not working, simple python script causes exception | Apache Spark and pyspark not working, simple python script causes exception
I installed Apache Spark to the best of my knowledge;
however, it does not work :-(
To test my installation, I use the following python script:
from pyspark.sql import SparkSession
# Create a Spark session
spark = SparkSession... | https://stackoverflow.com/questions/79414317/apache-spark-and-pyspark-not-working-simple-python-script-causes-exception | apache-spark | 1,738,748,972 |
se_79414230 | stackoverflow | DATA_ENGINEERING | How to add or delete columns on liquid clustering enabled delta table? | How to add or delete columns on liquid clustering enabled delta table?
I have delta table enabled liquid clustering. I wonder is there any way to modify a column of the delta table with pyspark. I tried the following approach but didn't work.
DeltaTable.createOrReplace() \
.tableName("SAMPLE") \
.addColumn("NAME",... | https://stackoverflow.com/questions/79414230/how-to-add-or-delete-columns-on-liquid-clustering-enabled-delta-table | apache-spark, pyspark, delta-lake | 1,738,747,542 |
se_72466751 | stackoverflow | DATA_ENGINEERING | emr-dynamodb-connector control/throttle the writes to DDB (Throughput exceeds the current throughput limit for your account.) | emr-dynamodb-connector control/throttle the writes to DDB (Throughput exceeds the current throughput limit for your account.)
I am trying to write 1 TB / 30 million documents to DDB table.
DDB table is set for On-demand capacity.
For that i am using emr-dynamodb-connector by running spark job on EMR cluster. Code look... | https://stackoverflow.com/questions/72466751/emr-dynamodb-connector-control-throttle-the-writes-to-ddb-throughput-exceeds-th | amazon-web-services, apache-spark, apache-spark-sql, amazon-dynamodb, amazon-emr | 1,654,109,414 |
se_79415362 | stackoverflow | DATA_ENGINEERING | Spark + Spring + Validator class file for javax.validation.ValidatorFactory not found | Spark + Spring + Validator class file for javax.validation.ValidatorFactory not found
I trying to upgrade from:
Java 8
Spring 2.7
Spark 3.3
scala 2.12
To
Java 17
Spring 3.1.2
Spark 3.5.0
scala 2.12
Application running on k8s but my problem come when I try to do some local testing.
According to some use case seen and d... | https://stackoverflow.com/questions/79415362/spark-spring-validator-class-file-for-javax-validation-validatorfactory-not | spring, spring-boot, apache-spark, validation | 1,738,770,840 |
se_78087466 | stackoverflow | DATA_ENGINEERING | Replace dataframe with its alias in select in pyspark | Replace dataframe with its alias in select in pyspark
I am trying to learn about the dataframe alias command in pyspark. Here is what I observe.
Suppose I have a sample dataframe
t1_df = spark.createDataFrame([['a'], ['b']], 'c1: string')
print(t1_df.show())
+---+
| c1|
+---+
| a|
| b|
+---+
Now I have created its... | https://stackoverflow.com/questions/78087466/replace-dataframe-with-its-alias-in-select-in-pyspark | dataframe, apache-spark, alias | 1,709,293,096 |
se_70005490 | stackoverflow | DATA_ENGINEERING | Get difference between two version of delta lake table | Get difference between two version of delta lake table
how to find the difference between two last versions of a Delta Table ?
Here is as far as I went using dataframes :
val df1 = spark.read
.format("delta")
.option("versionAsOf", "0001")
.load("/path/to/my/table")
val df2 = spark.read
.format("delta")
.op... | https://stackoverflow.com/questions/70005490/get-difference-between-two-version-of-delta-lake-table | scala, apache-spark, delta-lake | 1,637,156,659 |
se_37927154 | stackoverflow | DATA_ENGINEERING | How to write a condition based on multiple values for a DataFrame in Spark | How to write a condition based on multiple values for a DataFrame in Spark
I'm working on a Spark Application (using Scala) and I have a List which contains multiple values. I'd like to use this list in order to write a where clause for my DataFrame and select only a subset on tuples. For example, my List contains 'va... | https://stackoverflow.com/questions/37927154/how-to-write-a-condition-based-on-multiple-values-for-a-dataframe-in-spark | scala, apache-spark | 1,466,438,998 |
se_79411961 | stackoverflow | DATA_ENGINEERING | Is 'E' character special in Spark SQL | Is 'E' character special in Spark SQL
I'm trying to concatenate three columns into one using Spark SQL and concat function.
One of the columns gets value 'E', and when concatenated together with other two columns, returns unexpected value.
Here is the example of what is happening:
select
concat('22','E','0... | https://stackoverflow.com/questions/79411961/is-e-character-special-in-spark-sql | apache-spark | 1,738,677,795 |
se_79369663 | stackoverflow | DATA_ENGINEERING | Unable to authenticate S3 with S3A pyspark config. I want to get the code to work in EMR hence, avoiding the temporal credentials for 1 hour | Unable to authenticate S3 with S3A pyspark config. I want to get the code to work in EMR hence, avoiding the temporal credentials for 1 hour
Error: org.apache.hadoop.fs.s3a.auth.NoAuthWithAWSException: No AWS Credentials provided by TemporaryAWSCredentialsProvider SimpleAWSCredentialsProvider EnvironmentVariableCreden... | https://stackoverflow.com/questions/79369663/unable-to-authenticate-s3-with-s3a-pyspark-config-i-want-to-get-the-code-to-wor | java, apache-spark, amazon-s3 | 1,737,316,461 |
se_38733928 | stackoverflow | DATA_ENGINEERING | Convert RDD of LabeledPoint to DataFrame toDF() Error | Convert RDD of LabeledPoint to DataFrame toDF() Error
I have a dataframe df which contains 13 values separated with comma. I want to get in df2 a dataFrame which contains labeledPoint. first value is label, twelve others are features. I use a split and select method to divide string with 13 value into an array of 13 v... | https://stackoverflow.com/questions/38733928/convert-rdd-of-labeledpoint-to-dataframe-todf-error | python, apache-spark, pyspark, rdd, apache-spark-sql | 1,470,195,303 |
se_46096524 | stackoverflow | DATA_ENGINEERING | Custom OrderBy in Spark SQL | Custom OrderBy in Spark SQL
I have two columns that need to be sorted in a custom way.
For Eg:
Month Column it should be sorted in a way that Jan2015 to Dec(CurrentYear)
and Also suppose I have Column as Quarter and I want it to or Order by as Q1-2015,Q2-2015,... Q4-CurrentYear ..
in orderby of Spark Sql I'll b... | https://stackoverflow.com/questions/46096524/custom-orderby-in-spark-sql | apache-spark, apache-spark-sql | 1,504,787,700 |
se_77797606 | stackoverflow | DATA_ENGINEERING | Rowencoder.apply and rowencoder.encoderfor methods in spark catalyst package | Rowencoder.apply and rowencoder.encoderfor methods in spark catalyst package
I am trying to create a dataset and I have RDD and a schema of structtype. In spark 3.5.0 and above the Rowencoder.apply method is been removed and have introduced new method called Rowencoder.encoderfor which will return agnosticencoder inst... | https://stackoverflow.com/questions/77797606/rowencoder-apply-and-rowencoder-encoderfor-methods-in-spark-catalyst-package | apache-spark, apache-spark-encoders | 1,704,945,796 |
se_79409000 | stackoverflow | DATA_ENGINEERING | Issue: Hive Metastore Not Resolvable in Spark Cluster Mode | Issue: Hive Metastore Not Resolvable in Spark Cluster Mode
Apache Spark Cluster Mode Error: NoSuchFieldError: METASTOREURIS
I am running Apache Spark with Hive Metastore on YARN. The setup consists of:
One Edge Node (running inside containers, using --network host mode):
Hive Metastore
PostgreSQL (as the Hive Metast... | https://stackoverflow.com/questions/79409000/issue-hive-metastore-not-resolvable-in-spark-cluster-mode | docker, apache-spark, pyspark, hive, hadoop-yarn | 1,738,590,171 |
se_68585484 | stackoverflow | DATA_ENGINEERING | Databricks secret visible in cleartext | Databricks secret visible in cleartext
I have a requirement that I need a secret when starting a cluster in databricks. And I found following way of providing the secret to my init script. https://docs.databricks.com/security/secrets/secrets.html#store-the-path-to-a-secret-in-an-environment-variable .
Now this worked ... | https://stackoverflow.com/questions/68585484/databricks-secret-visible-in-cleartext | azure, apache-spark, databricks, azure-databricks, azure-keyvault | 1,627,619,758 |
se_27181737 | stackoverflow | DATA_ENGINEERING | How to deal with executor memory and driver memory in Spark? | How to deal with executor memory and driver memory in Spark?
I am confused about dealing with executor memory and driver memory in Spark.
My environment settings are as below:
Memory 128 G, 16 CPU for 9 VM
Centos
Hadoop 2.5.0-cdh5.2.0
Spark 1.1.0
Input data information:
3.5 GB data file from HDFS
For simple d... | https://stackoverflow.com/questions/27181737/how-to-deal-with-executor-memory-and-driver-memory-in-spark | memory-management, apache-spark | 1,417,147,620 |
se_78771358 | stackoverflow | DATA_ENGINEERING | How do you handle Big Datasets for training XGboost? | How do you handle Big Datasets for training XGboost?
I had a dataset which has 530 classes and it was heavily imbalanced so as I am new to handling such large datasets I undersampled the top 10 majority classes and then concatenated it with other data and oversampled the dataset which came up to be 5,000,000 rows and ... | https://stackoverflow.com/questions/78771358/how-do-you-handle-big-datasets-for-training-xgboost | apache-spark, dask, amazon-sagemaker, xgboost | 1,721,427,393 |
se_48221164 | stackoverflow | DATA_ENGINEERING | Could not read data from kafka using pyspark | Could not read data from kafka using pyspark
I've a streaming data in my kafka topic. I need to read this data from topic using pyspark inthe form of pyspark dataframe. But I'm continuously receiving error when I'm calling readStream function. The error is "py4j.protocol.Py4JJavaError: An error occurred while calling ... | https://stackoverflow.com/questions/48221164/could-not-read-data-from-kafka-using-pyspark | apache-spark, pyspark, apache-kafka, spark-structured-streaming | 1,515,740,571 |
se_40048919 | stackoverflow | DATA_ENGINEERING | What is the difference between rowsBetween and rangeBetween? | What is the difference between rowsBetween and rangeBetween?
From the PySpark docs rangeBetween:
rangeBetween(start, end)
Defines the frame boundaries, from start (inclusive) to end (inclusive).
Both start and end are relative from the current row. For example, “0” means “current row”, while “-1” means o... | https://stackoverflow.com/questions/40048919/what-is-the-difference-between-rowsbetween-and-rangebetween | sql, apache-spark, pyspark, apache-spark-sql, window-functions | 1,476,466,328 |
se_79403433 | stackoverflow | DATA_ENGINEERING | Spark on AKS spins up driver but not executors | Spark on AKS spins up driver but not executors
My set up is:
AKS in a subnet, managed control-plane.
Created namespace
created service account with token, role and
rolebinding
Pulled kubeconfig for service account
Trying to run a simple spark-submit with following command:
./bin/spark-submit
--master k8s://https://A... | https://stackoverflow.com/questions/79403433/spark-on-aks-spins-up-driver-but-not-executors | apache-spark, azure-aks | 1,738,342,206 |
se_78326548 | stackoverflow | DATA_ENGINEERING | Need way we can increase the size of ByteBuffer or option to read a file iterating byte by byte(not reading whole file at once) in spark / pyspark? | Need way we can increase the size of ByteBuffer or option to read a file iterating byte by byte(not reading whole file at once) in spark / pyspark?
We are using Spark to read Abinitio written source data that is a binary Fixed length format files which are encoded. We need to read it byte by byte as few fields in data... | https://stackoverflow.com/questions/78326548/need-way-we-can-increase-the-size-of-bytebuffer-or-option-to-read-a-file-iterati | python, apache-spark, pyspark | 1,713,163,952 |
se_59511576 | stackoverflow | DATA_ENGINEERING | Chaining Delta Streams programmatically raising AnalysisException | Chaining Delta Streams programmatically raising AnalysisException
Situation : I am producing a delta folder with data from a previous Streaming Query A, and reading later from another DF, as shown here
DF_OUT.writeStream.format("delta").(...).start("path")
(...)
DF_IN = spark.readStream.format("delta").load("path)... | https://stackoverflow.com/questions/59511576/chaining-delta-streams-programmatically-raising-analysisexception | apache-spark, spark-structured-streaming, delta-lake | 1,577,541,749 |
se_46740670 | stackoverflow | DATA_ENGINEERING | No FileSystem for scheme: s3 with pyspark | No FileSystem for scheme: s3 with pyspark
I'm trying to read a txt file from S3 with Spark, but I'm getting thhis error:
No FileSystem for scheme: s3
This is my code:
from pyspark import SparkContext, SparkConf
conf = SparkConf().setAppName("first")
sc = SparkContext(conf=conf)
data = sc.textFile("s3://"+AWS_ACCES... | https://stackoverflow.com/questions/46740670/no-filesystem-for-scheme-s3-with-pyspark | python, python-2.7, apache-spark | 1,507,952,842 |
se_79388838 | stackoverflow | DATA_ENGINEERING | Configure pySpark join to handle bucketed datasets | Configure pySpark join to handle bucketed datasets
Apache Spark 3.2:
I have 2 bucketed datasets in parquet files, bucketed with the same column (visitor_id) and same amount of buckets (1024)
I would like to join them and my question is, how can i configure the join in such a way that Spark is aware of the bucketing an... | https://stackoverflow.com/questions/79388838/configure-pyspark-join-to-handle-bucketed-datasets | apache-spark, pyspark | 1,737,907,529 |
se_79362778 | stackoverflow | DATA_ENGINEERING | Understand Databricks Structured Streaming Spill to Disk Behavior | Understand Databricks Structured Streaming Spill to Disk Behavior
I am a running streaming pipeline on Databricks using Pyspark (128gb Memory Cluster with DBR 14.3, Spark 3.5.0). This stream is processing zipped json files and merging them into a delta table. For this Pipeline the data has about 20 columns, not conta... | https://stackoverflow.com/questions/79362778/understand-databricks-structured-streaming-spill-to-disk-behavior | apache-spark, pyspark, databricks, azure-databricks, spark-structured-streaming | 1,737,053,829 |
se_78178043 | stackoverflow | DATA_ENGINEERING | Spark job fails with "Python worker exited unexpectedly (crashed)" error | Spark job fails with "Python worker exited unexpectedly (crashed)" error
I'm encountering an issue while running a Spark job that processes data using Python. The job fails with the following error message:
org.apache.spark.SparkException: Python worker exited unexpectedly (crashed)
I'm submitting a Python s... | https://stackoverflow.com/questions/78178043/spark-job-fails-with-python-worker-exited-unexpectedly-crashed-error | python, apache-spark, pyspark, apache-spark-sql | 1,710,738,332 |
se_79402222 | stackoverflow | DATA_ENGINEERING | PySpark foreach() is not implemented | PySpark foreach() is not implemented
I have PySpark in my local environment:
pyspark[sql]==3.5.0
And SPARK_REMOTE pointing to Databricks:
SPARK_REMOTE=SPARK_REMOTE=sc://{dbx_workspace}:443/;x-databricks-cluster-id={dbx_cluster_id};token={pat}
If I call df.foreach(my_function) I get:
raise PySparkNotImplementedError(
p... | https://stackoverflow.com/questions/79402222/pyspark-foreach-is-not-implemented | apache-spark, pyspark, databricks, azure-databricks | 1,738,314,259 |
se_63703181 | stackoverflow | DATA_ENGINEERING | How to throw Exception in Databricks? | How to throw Exception in Databricks?
I want my Databricks notebook to fail if a certain condition is satisfied. Right now I am using dbutils.notebook.exit() but it does not cause the notebook to fail and I will get mail like notebook run is successful. How can I make my notebook fail? | https://stackoverflow.com/questions/63703181/how-to-throw-exception-in-databricks | apache-spark, pyspark, databricks, azure-databricks | 1,599,040,914 |
se_38867472 | stackoverflow | DATA_ENGINEERING | Spark - SELECT WHERE or filtering? | Spark - SELECT WHERE or filtering?
What's the difference between selecting with a where clause and filtering in Spark?
Are there any use cases in which one is more appropriate than the other one?
When do I use
DataFrame newdf = df.select(df.col("*")).where(df.col("somecol").leq(10))
and when is
DataFrame newdf... | https://stackoverflow.com/questions/38867472/spark-select-where-or-filtering | apache-spark, apache-spark-sql | 1,470,816,068 |
se_79399577 | stackoverflow | DATA_ENGINEERING | Are Spark checkpoints invalidated when source data is changed? | Are Spark checkpoints invalidated when source data is changed?
I'm trying to understand the behaviour of (py)Spark checkpointing. Let's say there is some source data (s3 or HDFS) A with intermediate RDDs checkpoints B and C:
If the source data changes (e.g. new data is added), will B and C be recalculated?
If not, is ... | https://stackoverflow.com/questions/79399577/are-spark-checkpoints-invalidated-when-source-data-is-changed | apache-spark, pyspark | 1,738,233,399 |
se_45321924 | stackoverflow | DATA_ENGINEERING | How to read the json file in spark using scala? | How to read the json file in spark using scala?
I want to read the JSON file in the below format:-
{
"titlename": "periodic",
"atom": [
{
"usage": "neutron",
"dailydata": [
{
"utcacquisitiontime": "2017-03-27T22:00:00Z",
"datatimezone": "+02:00",
"intervalvalu... | https://stackoverflow.com/questions/45321924/how-to-read-the-json-file-in-spark-using-scala | json, scala, apache-spark | 1,501,058,984 |
se_79396113 | stackoverflow | DATA_ENGINEERING | Can we stop or pause already running optimize on delta table | Can we stop or pause already running optimize on delta table
Is there any way to stop or pause an already running optmize on delta table started using
val deltaTable = DeltaTable.forPath(spark, deltaTablePath)
deltaTable.optimize().executeCompaction() | https://stackoverflow.com/questions/79396113/can-we-stop-or-pause-already-running-optimize-on-delta-table | apache-spark, databricks, delta | 1,738,139,252 |
se_76329028 | stackoverflow | DATA_ENGINEERING | how to create a spark v2 table with spark sql? | how to create a spark v2 table with spark sql?
use spark.sql create a table in hive metastore
CREATE TABLE db_test.table_test (
name STRING,
status STRING,
field1 BIGINT,
field2 BIGINT,
data_dt STRING)
USING parquet
PARTITIONED BY (data_dt)
LOCATION 's3://somebucket/db_test.db/table_test';
then if i try to ... | https://stackoverflow.com/questions/76329028/how-to-create-a-spark-v2-table-with-spark-sql | apache-spark, apache-spark-sql | 1,684,990,291 |
se_79224196 | stackoverflow | DATA_ENGINEERING | Unable to start thrift-server due to class org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter is not a javax.servlet.Filter | Unable to start thrift-server due to class org.apache.hadoop.yarn.server.webproxy.amfilter.AmIpFilter is not a javax.servlet.Filter
On starting spark-thrift-server using
java 1.8,
spark-3.5.0-bin-hadoop3 and
hadoop-3.3.6...
spark-submit showing the job is submitted, running and completed within few seconds successfu... | https://stackoverflow.com/questions/79224196/unable-to-start-thrift-server-due-to-class-org-apache-hadoop-yarn-server-webprox | java, apache-spark, thrift, spark-thriftserver | 1,732,558,857 |
se_55461843 | stackoverflow | DATA_ENGINEERING | filter only not empty arrays dataframe spark | filter only not empty arrays dataframe spark
How can i filter only not empty arrays
import org.apache.spark.sql.types.ArrayType
val arrayFields = secondDF.schema.filter(st => st.dataType.isInstanceOf[ArrayType])
val names = arrayFields.map(_.name)
Or is this code
val DF1=DF.select(col("key"),explode(col("ob")).... | https://stackoverflow.com/questions/55461843/filter-only-not-empty-arrays-dataframe-spark | scala, apache-spark, apache-spark-sql | 1,554,145,178 |
se_79395053 | stackoverflow | DATA_ENGINEERING | Escape a single quote in plain Databricks SQL | Escape a single quote in plain Databricks SQL
I want to count rows dynamically from multiple tables in a schema in (preferably) plain Databricks SQL. I also want the tablename to be displayed before the number of rows.
Something like this:
table name
rowcount
sales_customers
134
sales_franchises
200
sales_s... | https://stackoverflow.com/questions/79395053/escape-a-single-quote-in-plain-databricks-sql | sql, apache-spark, apache-spark-sql, databricks | 1,738,094,780 |
se_31975457 | stackoverflow | DATA_ENGINEERING | Apache Calcite Data Federation Usecase | Apache Calcite Data Federation Usecase
Just want to check if the Apache Calcite can be used for the use case "Data Federation"(query with multiple databases).
The idea is I have a master query (5 tables) that has tables from one database (say Hive) and 3 tables from another database (say MySQL).
Can I execute ... | https://stackoverflow.com/questions/31975457/apache-calcite-data-federation-usecase | apache-spark, apache-calcite | 1,439,413,760 |
se_68196969 | stackoverflow | DATA_ENGINEERING | What are the _STARTED_, _COMMITTED_ , and _SUCCESS_ files in a Spark Parquet table? | What are the _STARTED_, _COMMITTED_ , and _SUCCESS_ files in a Spark Parquet table?
What are the STARTED, COMMITTED , and SUCCESS files that are created in the underlying storage folder when writing/creating a Spark Parquet table?
Can there be multiple of those file? If so, what does it mean to have more than one of t... | https://stackoverflow.com/questions/68196969/what-are-the-started-committed-and-success-files-in-a-spark-parquet-tab | apache-spark, parquet | 1,625,064,256 |
se_55430806 | stackoverflow | DATA_ENGINEERING | How can I get all names of the arrays on Dataframe | How can I get all names of the arrays on Dataframe
How can I get all names of the arrays on Dataframe ?
The problem is i am trying to explode ALL arrays.
import org.apache.spark.sql.{Column, DataFrame, SparkSession}
import org.apache.spark.sql.functions.col
import org.apache.spark.sql.types.{ArrayType, StructField, St... | https://stackoverflow.com/questions/55430806/how-can-i-get-all-names-of-the-arrays-on-dataframe | scala, apache-spark, apache-spark-sql | 1,553,944,080 |
se_55398372 | stackoverflow | DATA_ENGINEERING | create a Spark DataFrame from a nested array of struct element? | create a Spark DataFrame from a nested array of struct element?
I have read a JSON file into Spark. This file has the following structure:
root
|-- a: struct (nullable = true)
| |-- rt: array (nullable = true)
| | |-- element: struct (containsNull = true)
| | | |-- rb: struct... | https://stackoverflow.com/questions/55398372/create-a-spark-dataframe-from-a-nested-array-of-struct-element | scala, apache-spark, apache-spark-sql | 1,553,778,244 |
se_55123464 | stackoverflow | DATA_ENGINEERING | Executing multiple SQL queries on Spark - Table or view not found | Executing multiple SQL queries on Spark - Table or view not found
I trying to execute these spark statements but it is not working
spark.sql("CREATE OR REPLACE GLOBAL TEMPORARY VIEW VIEW_1
AS SELECT * from orc.`/apps/hive/warehouse/userdb.db/rb`")
spark.sql("CREATE OR REPLACE GLOBAL TEMPORARY VIEW VIEW_2 AS SELEC... | https://stackoverflow.com/questions/55123464/executing-multiple-sql-queries-on-spark-table-or-view-not-found | apache-spark, apache-spark-sql, spark-streaming | 1,552,399,656 |
se_58302262 | stackoverflow | DATA_ENGINEERING | spark UI - Understand metrics memory used | spark UI - Understand metrics memory used
Could you please help me understand the metrics on spark UI Memory: 10 MB Used (552.6 GB Total)
PartitionNumber.nbExecutors = conf.getInt("spark.executor.instances", 20)
PartitionNumber.nbPartitions = PartitionNumber.nbExecutors * conf.getInt("spark.executor.cores", 2) * 3
c... | https://stackoverflow.com/questions/58302262/spark-ui-understand-metrics-memory-used | scala, apache-spark, apache-spark-sql, spark-streaming | 1,570,617,451 |
se_47036486 | stackoverflow | DATA_ENGINEERING | What is prefer , bucket or repartition? | What is prefer , bucket or repartition?
I have 2 spark jobs one is pre-process and the second is the process.
Process job needs to calculate for each user in the data.
I want to avoid shuffle like groupBy so I think about to save the result of the pre-process as bucket by user in Parquet or to re-partition by user an... | https://stackoverflow.com/questions/47036486/what-is-prefer-bucket-or-repartition | apache-spark, hive, apache-spark-sql | 1,509,456,002 |
se_79391729 | stackoverflow | DATA_ENGINEERING | Read fixed length file with batches | Read fixed length file with batches
I have a text file with fixed length format like below -
K57 details 1234
K58 abcdefghijklmnopqrstuvwxyz 0123456789
K58 abcdefghijklmnopqrstuvwxyz 0123456789
K58 abcdefghijklmnopqrstuvwxyz 0123456789
K57 details 5678
K58 abcdefghijklmnopqrstuvwxyz 9876543210
K58 abcdefghijklmnop... | https://stackoverflow.com/questions/79391729/read-fixed-length-file-with-batches | python, apache-spark, pyspark, apache-spark-sql | 1,738,000,634 |
se_79388032 | stackoverflow | DATA_ENGINEERING | UDF method sim(String[] a, String[] b), where a and b come from two different datasets, receives the same value for both parameters | UDF method sim(String[] a, String[] b), where a and b come from two different datasets, receives the same value for both parameters
I have to calculate a similarity value between the competencies of a reference local authority in France:
C1010
C1015
C1020
C1025
C1030
C1502
C1505
C1507
C1510
C1515
C1520
C1525
C1528
... | https://stackoverflow.com/questions/79388032/udf-method-simstring-a-string-b-where-a-and-b-come-from-two-different-da | java, apache-spark | 1,737,870,873 |
se_79384191 | stackoverflow | DATA_ENGINEERING | Spark: asynchronously update the broadcast variable | Spark: asynchronously update the broadcast variable
So, I want to update a broadcast variable, here a token, based on its lifespan.
api_token = {"token": "initial_token"}
broadcast_token = None
keep_running = True
async def renew_api_token():
"""Simulates API token renewal asynchronously."""
global api_token,... | https://stackoverflow.com/questions/79384191/spark-asynchronously-update-the-broadcast-variable | multithreading, apache-spark, asynchronous, pyspark | 1,737,718,317 |
se_30964920 | stackoverflow | DATA_ENGINEERING | Spark: Trying to run spark-shell, but get 'cmd' is not recognized as an internal or | Spark: Trying to run spark-shell, but get 'cmd' is not recognized as an internal or
I'm trying to install Spark on my Windows desktop. Everything should work fine, but I get an error "'cmd' is not recognized as an internal or external command... "
I installed Scala, Java JDK and unzipped Spark tgz in C:\, but... | https://stackoverflow.com/questions/30964920/spark-trying-to-run-spark-shell-but-get-cmd-is-not-recognized-as-an-internal | apache-spark | 1,434,892,558 |
se_77548197 | stackoverflow | DATA_ENGINEERING | How can i speed up my data write process in s3 using pySpark | How can i speed up my data write process in s3 using pySpark
I have to write parquet files containing 700 000 rows each in s3 using PySpark. I am writing a data frame in a parquet file and saving it in the S3 using overwrite method.
For writing one data frame in one bucket, my code is taking 50 secs to complete, and I... | https://stackoverflow.com/questions/77548197/how-can-i-speed-up-my-data-write-process-in-s3-using-pyspark | scala, apache-spark, amazon-s3, pyspark, apache-spark-sql | 1,700,921,756 |
se_77156805 | stackoverflow | DATA_ENGINEERING | Wide and Narrow transformations in Spark | Wide and Narrow transformations in Spark
I have a question : Wide and Narrow transformations python Spark, are found both in RDDs and Structured APIs, right ?
I mean, I guess I got the difference between wide and narrow transformations. My point is, are they exclusive for one or the other python Spark API (whether it'... | https://stackoverflow.com/questions/77156805/wide-and-narrow-transformations-in-spark | python, apache-spark, pyspark, rdd | 1,695,378,348 |
se_78202957 | stackoverflow | DATA_ENGINEERING | How to point sbt to use locally installed protoc in my scala project | How to point sbt to use locally installed protoc in my scala project
noob here with scala/sbt in general. Long-story short: a project written in scala was dumped on my head and i am having trouble getting it running locally.
i am executing sbt runMain Project but it is throwing this error
[info] welcome to sbt 1.8.2 (... | https://stackoverflow.com/questions/78202957/how-to-point-sbt-to-use-locally-installed-protoc-in-my-scala-project | scala, apache-spark, sbt, protoc | 1,711,057,462 |
se_50551919 | stackoverflow | DATA_ENGINEERING | Remove list elements in a dataframe in scala | Remove list elements in a dataframe in scala
I am new to scala and struggling with these use case. How can I remove the elements part of a list from a column in a dataframe?
I have a list of names and I need to remove the names if it is present in the dataframe.
I have dataframe like
utid|description
12342|my name is ... | https://stackoverflow.com/questions/50551919/remove-list-elements-in-a-dataframe-in-scala | scala, apache-spark, apache-spark-sql | 1,527,422,475 |
se_50602256 | stackoverflow | DATA_ENGINEERING | Not able to Explode and select in the same expression in spark scala | Not able to Explode and select in the same expression in spark scala
Here is my schema:
root
|-- DataPartition: string (nullable = true)
|-- TimeStamp: string (nullable = true)
|-- TRFCoraxData_instrumentId: long (nullable = true)
|-- TRFCoraxData_organizationId: long (nullable = true)
|-- Dividends: array (nulla... | https://stackoverflow.com/questions/50602256/not-able-to-explode-and-select-in-the-same-expression-in-spark-scala | scala, apache-spark, apache-spark-sql | 1,527,675,778 |
se_79128216 | stackoverflow | DATA_ENGINEERING | How to connect to SPARK using SPARK Connect from a client computer | How to connect to SPARK using SPARK Connect from a client computer
I have installed Spark on a PI using the following docker compose scripts.
Everything runs fine however i am not able to connect to Spark from my laptop using pyspark and spark connect.
It seems it cannot connect to the spark server somehow, I am not ... | https://stackoverflow.com/questions/79128216/how-to-connect-to-spark-using-spark-connect-from-a-client-computer | apache-spark | 1,729,935,209 |
se_79371058 | stackoverflow | DATA_ENGINEERING | Why Stream to Stream inner join doesn't require watermark mandatorily | Why Stream to Stream inner join doesn't require watermark mandatorily
According to Spark Documentation of Spark Structured Streaming, if 2 tables are stream type, then inner join will work without any watermark however, left outer join requires watermark mandatorily.
I don't understand why. If it is because of sta... | https://stackoverflow.com/questions/79371058/why-stream-to-stream-inner-join-doesnt-require-watermark-mandatorily | apache-spark, pyspark, spark-structured-streaming, spark-streaming-kafka | 1,737,370,574 |
se_79383880 | stackoverflow | DATA_ENGINEERING | Set field of java UDF instance in spark driver and use in executors | Set field of java UDF instance in spark driver and use in executors
Is it possible to set field on the UDF instance in driver and use it by the executors when call() is invoked?
public class SomeUDF implements UDF2<String, String, String> {
private String val = "foo";
public void init(String st){
val ... | https://stackoverflow.com/questions/79383880/set-field-of-java-udf-instance-in-spark-driver-and-use-in-executors | java, apache-spark, user-defined-functions | 1,737,711,939 |
se_79188217 | stackoverflow | DATA_ENGINEERING | Can't connect/write stream from spark container to table in cassandra container | Can't connect/write stream from spark container to table in cassandra container
I am composing these services in separate docker containers all on the same confluent network:
broker:
image: confluentinc/cp-server:7.4.0
hostname: broker
container_name: broker
depends_on:
zookeeper:
con... | https://stackoverflow.com/questions/79188217/cant-connect-write-stream-from-spark-container-to-table-in-cassandra-container | docker, apache-spark, cassandra, spark-cassandra-connector | 1,731,579,074 |
se_62555652 | stackoverflow | DATA_ENGINEERING | Fetching data from REST API to Spark Dataframe using Pyspark | Fetching data from REST API to Spark Dataframe using Pyspark
i am building a datapipeline which consume data from RESTApi in json format and pushed to Spark Dataframe. Spark Version: 2.4.4
but getting error as
df = SQLContext.jsonRDD(rdd)
AttributeError: type object 'SQLContext' has no attribute 'jsonRDD'
Code:
from... | https://stackoverflow.com/questions/62555652/fetching-data-from-rest-api-to-spark-dataframe-using-pyspark | apache-spark, pyspark | 1,593,003,607 |
se_79380760 | stackoverflow | DATA_ENGINEERING | Count entries for all possible categories | Count entries for all possible categories
I have data that looks like this
id | id_2 | ... | label |
-- | ----- | --- | ----- |
1 | x | ... | a |
1 | x | ... | a |
1 | x | ... | b |
1 | y | ... | a |
1 | z | ... | c |
1 | z | ... | b |
1 | z | ... | c |
2... | https://stackoverflow.com/questions/79380760/count-entries-for-all-possible-categories | apache-spark, pyspark | 1,737,630,259 |
se_60817234 | stackoverflow | DATA_ENGINEERING | Delta Lake without Databricks Runtime | Delta Lake without Databricks Runtime
Can one use Delta Lake and not being dependent on Databricks Runtime? (I mean, is it possible to use delta-lake with hdfs and spark on prem only?)
If no, could you elaborate why is that so from technical point of view? | https://stackoverflow.com/questions/60817234/delta-lake-without-databricks-runtime | apache-spark, hdfs, databricks, delta-lake | 1,584,979,542 |
se_71750833 | stackoverflow | DATA_ENGINEERING | Create column using Spark pandas_udf, with dynamic number of input columns | Create column using Spark pandas_udf, with dynamic number of input columns
I have this df:
df = spark.createDataFrame(
[('row_a', 5.0, 0.0, 11.0),
('row_b', 3394.0, 0.0, 4543.0),
('row_c', 136111.0, 0.0, 219255.0),
('row_d', 0.0, 0.0, 0.0),
('row_e', 0.0, 0.0, 0.0),
('row_f', 42.0, 0.0, 54... | https://stackoverflow.com/questions/71750833/create-column-using-spark-pandas-udf-with-dynamic-number-of-input-columns | apache-spark, pyspark, apache-spark-sql, user-defined-functions, pyspark-pandas | 1,649,157,550 |
se_79364491 | stackoverflow | DATA_ENGINEERING | Unable to access .env file from SparkSubmit | Unable to access .env file from SparkSubmit
I am using the SparkSubmitOperator on airflow to send a .env file to all nodes in the cluster using the files property.
SparkSubmitOperator(task_id=“spark”,
application=“…py”,
files=“path/to/.env”
)
When I use Sparkfile.get(“.env”), it give me the path where the env is uplo... | https://stackoverflow.com/questions/79364491/unable-to-access-env-file-from-sparksubmit | apache-spark, spark-submit | 1,737,110,549 |
se_79369556 | stackoverflow | DATA_ENGINEERING | Sorting a big HIVE table with sparksql, how to assign spark resource | Sorting a big HIVE table with sparksql, how to assign spark resource
I have a HIVE table with 3 billion rows. Want to assign a sequence ID base on decending order of the "amount" column. Logic is like below:
with table_of_3_billion_row(amount) as (
VALUES ( 10.01 ), ( 1.25 ), ( 9.35 ), ( 8.64 ), ( 2.87 ), ( 4.13 ), ... | https://stackoverflow.com/questions/79369556/sorting-a-big-hive-table-with-sparksql-how-to-assign-spark-resource | apache-spark, sorting, hive | 1,737,312,340 |
se_79993858 | stackoverflow | DATA_ENGINEERING | MWAA 2.11.0 - Testing locally | MWAA 2.11.0 - Testing locally
I'm trying to test MWAA 2.11 version locally. I have cloned the repository, built image and containers up and running.
The connections I added via UI and not being recognised by DAG.
[2026-08-13, 15:16:54 UTC] {logging_mixin.py:190} INFO - Error type: AirflowNotFoundException [2026-08-13... | https://stackoverflow.com/questions/79993858/mwaa-2-11-0-testing-locally | airflow, mwaa | 1,786,634,301 |
se_57188062 | stackoverflow | DATA_ENGINEERING | Airflow tasks with different schedules in the same dag | Airflow tasks with different schedules in the same dag
I would like to have some tasks running every day and others running every week inside the same DAG, is it possible or should I create a different DAG for different schedule tasks ?
I have seen the solution of using ShortCircuitOperator or AirflowSkipException an... | https://stackoverflow.com/questions/57188062/airflow-tasks-with-different-schedules-in-the-same-dag | airflow | 1,563,988,168 |
se_67777041 | stackoverflow | DATA_ENGINEERING | Changing the auto-generated task names in dynamic tasks | Changing the auto-generated task names in dynamic tasks
I'm trying to make a dynamic workflow but want to change the tasks names which airflow auto-generating it and assign to the tasks inside the list. I tried to access the context and manually change the taskid but this also not worked during the pipeline rendering ... | https://stackoverflow.com/questions/67777041/changing-the-auto-generated-task-names-in-dynamic-tasks | python, airflow | 1,622,476,828 |
se_79982279 | stackoverflow | DATA_ENGINEERING | Apache Airflow (2.10.3) - Airflow Scheduler crashes on XCom deserialization of custom str subclass | Apache Airflow (2.10.3) - Airflow Scheduler crashes on XCom deserialization of custom str subclass
I'm encountering a critical issue with Apache Airflow XComs when using a custom class that inherits from str.
A simplified version of my custom class:
class MyString(str):
def __init__(self, value):
self.valu... | https://stackoverflow.com/questions/79982279/apache-airflow-2-10-3-airflow-scheduler-crashes-on-xcom-deserialization-of-c | python, airflow | 1,784,561,066 |
se_42059393 | stackoverflow | DATA_ENGINEERING | How to run a task if a previous one fails in Apache Airflow | How to run a task if a previous one fails in Apache Airflow
I need to do the following:
Check if a server is up, if so I check if the Spark cluster in that server is up, case it's down I try to start it up, case it's already up I move forward to run my Spark job.
I though about creating a task to check if the Spark ... | https://stackoverflow.com/questions/42059393/how-to-run-a-task-if-a-previous-one-fails-in-apache-airflow | python, triggers, controls, airflow | 1,486,346,134 |
se_79983563 | stackoverflow | DATA_ENGINEERING | Why shouldn't Airflow's standalone mode be used for production purposes? | Why shouldn't Airflow's standalone mode be used for production purposes?
The documentation for installing Apache Airflow mentions a standalone mode that can be used to "try Apache Airflow without all production complexity".
pipx run apache-airflow standalone
However, it also says:
Note that the standalone mo... | https://stackoverflow.com/questions/79983563/why-shouldnt-airflows-standalone-mode-be-used-for-production-purposes | best-practices, airflow | 1,784,643,109 |
se_44429487 | stackoverflow | DATA_ENGINEERING | user unbound variable on docker run | user unbound variable on docker run
While running docker image, I am receiving the following error:
/entrypoint.sh: line 7: USER: unbound variable
Code of entrypoint.sh.
#!/bin/bash
set -euo pipefail
export SPARK_DIST_CLASSPATH=$(hadoop classpath)
POSTGRES_TIMEOUT=60
echo "Running as: ${USER}"
if [ "${USER}" != "r... | https://stackoverflow.com/questions/44429487/user-unbound-variable-on-docker-run | docker, docker-compose, airflow | 1,496,907,504 |
se_79972288 | stackoverflow | DATA_ENGINEERING | How to Insert datas from a dataframe into a database? | How to Insert datas from a dataframe into a database?
I have a DAG with three tasks in my project. The three tasks call three function which are in differents files. I'm using the ELT/ETL process. Everything seems fine until the injection of the datas. I don't know why I can't insert it in my database.
I checked that ... | https://stackoverflow.com/questions/79972288/how-to-insert-datas-from-a-dataframe-into-a-database | python, pandas, sqlalchemy, airflow | 1,782,928,885 |
se_79960724 | stackoverflow | DATA_ENGINEERING | Does the airflow-db-cleanup.py DAG need any import modifications when using SparkKubernetesOperator? | Does the airflow-db-cleanup.py DAG need any import modifications when using SparkKubernetesOperator?
I need to set up a metadata cleanup DAG for our Airflow environment, which uses the SparkKubernetesOperator (from apache-airflow-providers-cncf-kubernetes) to run Spark jobs on Kubernetes.
I'm planning to use this wide... | https://stackoverflow.com/questions/79960724/does-the-airflow-db-cleanup-py-dag-need-any-import-modifications-when-using-spar | apache-spark, airflow, kubernetes-operator | 1,781,623,394 |
se_79956748 | stackoverflow | DATA_ENGINEERING | Forked errors in a task | Forked errors in a task
I just started using airflow to schedule data pulls from a few sources to save them to a postgresql database on my laptop for further processing.
Everything was running relatively smoothly until I tried to add a task to my dag that sends data to a google sheet so the rest of my company can view... | https://stackoverflow.com/questions/79956748/forked-errors-in-a-task | airflow, pygsheets | 1,781,205,663 |
se_72186232 | stackoverflow | DATA_ENGINEERING | Airflow 2.1.0 - DAG 'XXXXXXXX' not found in serialized_dag table | Airflow 2.1.0 - DAG 'XXXXXXXX' not found in serialized_dag table
We recently upgraded from Airflow 1.10.12 to Airflow 2.1.0 and are getting issues errors like this in the UI for each of our dags.
We have upgraded the version from 1.10.12 to 1.10.15 and it was successful. Then from 1.10.15 we have upgraded to 2... | https://stackoverflow.com/questions/72186232/airflow-2-1-0-dag-xxxxxxxx-not-found-in-serialized-dag-table | airflow, airflow-scheduler, airflow-2.x, airflow-webserver | 1,652,185,291 |
se_74642215 | stackoverflow | DATA_ENGINEERING | Airflow SLA on DAG level | Airflow SLA on DAG level
Do you know the solution how to implement SLA on DAG level? I mean, the SLA within the whole DAG needs to be marked as success. Adding SLA parameter to default_args does not help here, because despite the fact this is a global parameter, it is evaluated on task level.
# Default settings applie... | https://stackoverflow.com/questions/74642215/airflow-sla-on-dag-level | airflow | 1,669,899,362 |
se_50790965 | stackoverflow | DATA_ENGINEERING | Airflow BashOperator OSError: [Errno 2] No such file or directory | Airflow BashOperator OSError: [Errno 2] No such file or directory
I keep getting the same error from a scheduled BashOperator that is currently back-filling (it's over a month "behind").
[2018-06-10 22:06:33,558] {base_task_runner.py:115} INFO - Running: ['bash', '-c', u'airflow run dag_name task_name 2018-03-14T00:... | https://stackoverflow.com/questions/50790965/airflow-bashoperator-oserror-errno-2-no-such-file-or-directory | python, permissions, airflow, airflow-scheduler | 1,528,694,825 |
se_69713244 | stackoverflow | DATA_ENGINEERING | Airflow Add Google Cloud Connection | Airflow Add Google Cloud Connection
I'm finding the documentation here:
https://airflow.apache.org/docs/apache-airflow-providers-google/stable/connections/gcp.html
to be about as clear as mud and would be very grateful for some clarifications, please.
I am simply trying to create a connection to my gcp project from my... | https://stackoverflow.com/questions/69713244/airflow-add-google-cloud-connection | google-cloud-platform, airflow | 1,635,187,592 |
se_79933474 | stackoverflow | DATA_ENGINEERING | Airflow use cases for different repos | Airflow use cases for different repos
I am newbie in Airflow and I use currently task scheduler on remote desktop to automate our tasks but it is based on my credentials and I cannot share with other team members, so I clone all projects git repo into remote desktop and put path for task scheduler, but I want to move ... | https://stackoverflow.com/questions/79933474/airflow-use-cases-for-different-repos | python, r, airflow | 1,777,446,554 |
se_72683391 | stackoverflow | DATA_ENGINEERING | Airflow DAG error "command failed. The command returned a non-zero exit code in airflow" | Airflow DAG error "command failed. The command returned a non-zero exit code in airflow"
I am new to airflow;
There is an error while scheduling a talend job in airflow. The error is
command failed. The command returned a non-zero exit code in airflow.
So please help me if anyone has any answer or related to... | https://stackoverflow.com/questions/72683391/airflow-dag-error-command-failed-the-command-returned-a-non-zero-exit-code-in | airflow, talend | 1,655,708,929 |
se_79931555 | stackoverflow | DATA_ENGINEERING | Conditionally running tasks in Airflow | Conditionally running tasks in Airflow
I'm trying to write a DAG that conditionally executes another task. The simplified version of what I'm working with is this:
to_be_triggered = EmptyOperator(task_id="to_be_triggered")
@task.branch()
def trigger_dag(**kwargs):
config = kwargs.get("dag_run_config")
if config.... | https://stackoverflow.com/questions/79931555/conditionally-running-tasks-in-airflow | python, airflow | 1,777,065,546 |
se_78457889 | stackoverflow | DATA_ENGINEERING | How can I find if another DAG is currently running and what configs were passed to it | How can I find if another DAG is currently running and what configs were passed to it
I'm using airflow 1.10.12
I have DAG A and DAG B. DAG A runs every 12 hours and DAG B is only triggered manually with a configuration JSON.
I know how to access the configuration JSON in DAG B, but is there a way to tell from DAG A i... | https://stackoverflow.com/questions/78457889/how-can-i-find-if-another-dag-is-currently-running-and-what-configs-were-passed | python, airflow | 1,715,312,538 |
se_79929754 | stackoverflow | DATA_ENGINEERING | How do you add GCP billing report labels onto Airflow's BatchPredictionJobHook.create_batch_prediction_job()? | How do you add GCP billing report labels onto Airflow's BatchPredictionJobHook.create_batch_prediction_job()?
According to the official Airflow documentation we can use labels arg to mark certain batch predictions which we can use in GCP Billing > Report to filter by the labels. I tried it like this
...
hook = Bat... | https://stackoverflow.com/questions/79929754/how-do-you-add-gcp-billing-report-labels-onto-airflows-batchpredictionjobhook-c | python, airflow, directed-acyclic-graphs, google-cloud-vertex-ai | 1,776,809,381 |
se_79922553 | stackoverflow | DATA_ENGINEERING | OSError when running containerized task in `airflow` image | OSError when running containerized task in `airflow` image
I'm trying to run a simple task in the apache/airflow image with the following Python script:
from airflow.sdk import dag, task
@task.docker(
image="docker.1ms.run/apache/airflow:3.2.0-python3.11"
# Note. It is just a mirror of apache/airflow:3.2.0-py... | https://stackoverflow.com/questions/79922553/oserror-when-running-containerized-task-in-airflow-image | docker, airflow, airflow-taskflow | 1,775,710,004 |
se_79921287 | stackoverflow | DATA_ENGINEERING | Why does a DAG created in /dags take time to appear in the UI? | Why does a DAG created in /dags take time to appear in the UI?
In Apache Airflow, when a new DAG file is created in the /dags directory, it doesn't show up immediately in the Airflow UI. There is some delay before the DAG becomes visible and accessible.
Why does this happen?
How can we make it appear faster?
What is t... | https://stackoverflow.com/questions/79921287/why-does-a-dag-created-in-dags-take-time-to-appear-in-the-ui | airflow | 1,775,539,864 |
se_79919190 | stackoverflow | DATA_ENGINEERING | How to automatically install latest Python package versions in AWS MWAA from S3 requirements.txt without manual updates? | How to automatically install latest Python package versions in AWS MWAA from S3 requirements.txt without manual updates?
Body:
I am using AWS Managed Workflows for Apache Airflow (MWAA) where the requirements.txt file is stored in an S3 bucket and MWAA syncs it during environment updates.
Current Setup:
requirements.... | https://stackoverflow.com/questions/79919190/how-to-automatically-install-latest-python-package-versions-in-aws-mwaa-from-s3 | airflow, mwaa, aws-airflow-mwaa | 1,775,149,311 |
se_76793296 | stackoverflow | DATA_ENGINEERING | in Airflow, how to set logging level for the airflow-scheduler component? | in Airflow, how to set logging level for the airflow-scheduler component?
I am running Airflow 2.5.2 in a docker image.
When I run it, the airflow-scheduler module spews out a huge amount of DEBUG messages to the console. I'm trying to view the console to fix a different issue, and this stuff from airflow-scheduler i... | https://stackoverflow.com/questions/76793296/in-airflow-how-to-set-logging-level-for-the-airflow-scheduler-component | airflow | 1,690,629,229 |
se_79427713 | stackoverflow | DATA_ENGINEERING | Trigger a task iff direct upstream failed | Trigger a task iff direct upstream failed
Let's say I have a dag with multiple tasks
task1 >> task2 >> [task3, task4]
I want task1 to be executed at the beginning.
Then task2.
If task2 ends with success, then execute task3, else execute task4.
I've tried to set the TriggerRule all_failed to task4 and, if task2 fails/... | https://stackoverflow.com/questions/79427713/trigger-a-task-iff-direct-upstream-failed | airflow | 1,739,205,329 |
se_79912836 | stackoverflow | DATA_ENGINEERING | KubernetesPodOperator with deferrable=True returns Forbidden on Cloud Composer 3 | KubernetesPodOperator with deferrable=True returns Forbidden on Cloud Composer 3
Environment:
Cloud Composer 3 (composer-3-airflow-2.10.2-build.13)
Region: europe-west1
Environment name: composer3-npd
Project: XXXXXXXXXX
Private environment: enabled
Problem: When using KubernetesPodOperator with deferrable=True... | https://stackoverflow.com/questions/79912836/kubernetespodoperator-with-deferrable-true-returns-forbidden-on-cloud-composer-3 | airflow, gcloud, google-cloud-composer | 1,774,274,176 |
se_79892224 | stackoverflow | DATA_ENGINEERING | Airflow Task dies exactly 24h after starting | Airflow Task dies exactly 24h after starting
The Problem:
when a task duration reaches 24h it is immediately killed. The log message we get indicates token expiration.
System infos
Airflow 3.1.6 (running in docker)
Celery executor (worker_concurrency=16, worker_autoscale="2,32")
auth_manager = airflow.providers.fab.a... | https://stackoverflow.com/questions/79892224/airflow-task-dies-exactly-24h-after-starting | airflow, celery | 1,771,504,463 |
se_79890126 | stackoverflow | DATA_ENGINEERING | Python Multiprocessing isn't working anymore after changing from Airflow 2 to Airflow 3 | Python Multiprocessing isn't working anymore after changing from Airflow 2 to Airflow 3
I am currently migrating my processes and DAGs from Airflow 2 to Airflow 3. In doing so, I am encountering the problem that the DAG that executes an XML parser freezes after completing its work. As a result, this Task always re... | https://stackoverflow.com/questions/79890126/python-multiprocessing-isnt-working-anymore-after-changing-from-airflow-2-to-ai | python, migration, airflow | 1,771,233,502 |
se_72304622 | stackoverflow | DATA_ENGINEERING | How to send an email in AWS MWAA (Apache Airflow) using EmailOperator | How to send an email in AWS MWAA (Apache Airflow) using EmailOperator
I am working with AWS MWAA (Apache Airflow). I want to send an email in MWAA upon completion of my pipeline.I have set the following configuration
Now when I run my dag using an Email Operator, it gives me an error.
File "/usr/lib64/python3.7/soc... | https://stackoverflow.com/questions/72304622/how-to-send-an-email-in-aws-mwaa-apache-airflow-using-emailoperator | amazon-web-services, airflow, mwaa | 1,652,963,591 |
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