Index of /apache/spark/docs/3.0.0
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README.html 2024-08-16 12:20 8.3K
api.html 2024-08-16 12:20 9.0K Spark API Documentation - Spark 3.0.0 Documentation
building-spark.html 2024-08-16 12:20 30K Building Spark - Spark 3.0.0 Documentation
cloud-integration.html 2024-08-16 12:20 24K Integration with Cloud Infrastructures - Spark 3.0.0 Documentation
cluster-overview.html 2024-08-16 12:20 16K Cluster Mode Overview - Spark 3.0.0 Documentation
configuration.html 2024-08-16 12:20 177K Configuration - Spark 3.0.0 Documentation
contributing-to-spark.html 2024-08-16 12:20 8.9K Contributing to Spark - Spark 3.0.0 Documentation
core-migration-guide.html 2024-08-16 12:20 13K Migration Guide: Spark Core - Spark 3.0.0 Documentation
generated-agg-funcs-examples.html 2024-08-16 12:20 78K
generated-agg-funcs-table.html 2024-08-16 12:20 7.5K
generated-array-funcs-examples.html 2024-08-16 12:20 38K
generated-array-funcs-table.html 2024-08-16 12:20 3.9K
generated-datetime-funcs-examples.html 2024-08-16 12:20 66K
generated-datetime-funcs-table.html 2024-08-16 12:20 5.7K
generated-json-funcs-examples.html 2024-08-16 12:20 12K
generated-json-funcs-table.html 2024-08-16 12:20 906
generated-map-funcs-examples.html 2024-08-16 12:20 6.8K
generated-map-funcs-table.html 2024-08-16 12:20 782
generated-runtime-sql-config-table.html 2024-08-16 12:20 39K
generated-static-sql-config-table.html 2024-08-16 12:20 5.3K
generated-window-funcs-table.html 2024-08-16 12:20 2.3K
graphx-programming-guide.html 2024-08-16 12:20 163K GraphX - Spark 3.0.0 Documentation
hadoop-provided.html 2024-08-16 12:20 12K Using Spark's "Hadoop Free" Build - Spark 3.0.0 Documentation
hardware-provisioning.html 2024-08-16 12:20 13K Hardware Provisioning - Spark 3.0.0 Documentation
index.html 2024-08-16 12:20 20K Overview - Spark 3.0.0 Documentation
job-scheduling.html 2024-08-16 12:20 33K Job Scheduling - Spark 3.0.0 Documentation
migration-guide.html 2024-08-16 12:20 10K Migration Guide - Spark 3.0.0 Documentation
ml-advanced.html 2024-08-16 12:20 20K Advanced topics - Spark 3.0.0 Documentation
ml-ann.html 2024-08-16 12:20 12K Multilayer perceptron classifier - Spark 3.0.0 Documentation
ml-classification-regression.html 2024-08-16 12:20 452K Classification and regression - Spark 3.0.0 Documentation
ml-clustering.html 2024-08-16 12:20 88K Clustering - Spark 3.0.0 Documentation
ml-collaborative-filtering.html 2024-08-16 12:20 60K Collaborative Filtering - Spark 3.0.0 Documentation
ml-datasource.html 2024-08-16 12:20 45K Data sources - Spark 3.0.0 Documentation
ml-decision-tree.html 2024-08-16 12:20 12K Decision trees - Spark 3.0.0 Documentation
ml-ensembles.html 2024-08-16 12:20 12K Tree ensemble methods - Spark 3.0.0 Documentation
ml-features.html 2024-08-16 12:20 556K Extracting, transforming and selecting features - Spark 3.0.0 Documentation
ml-frequent-pattern-mining.html 2024-08-16 12:20 47K Frequent Pattern Mining - Spark 3.0.0 Documentation
ml-guide.html 2024-08-16 12:20 22K MLlib: Main Guide - Spark 3.0.0 Documentation
ml-linear-methods.html 2024-08-16 12:20 12K Linear methods - Spark 3.0.0 Documentation
ml-migration-guide.html 2024-08-16 12:20 60K Migration Guide: MLlib (Machine Learning) - Spark 3.0.0 Documentation
ml-pipeline.html 2024-08-16 12:20 95K ML Pipelines - Spark 3.0.0 Documentation
ml-statistics.html 2024-08-16 12:20 61K Basic Statistics - Spark 3.0.0 Documentation
ml-survival-regression.html 2024-08-16 12:20 12K Survival Regression - Spark 3.0.0 Documentation
ml-tuning.html 2024-08-16 12:20 76K ML Tuning - Spark 3.0.0 Documentation
mllib-classification-regression.html 2024-08-16 12:20 15K Classification and Regression - RDD-based API - Spark 3.0.0 Documentation
mllib-clustering.html 2024-08-16 12:20 122K Clustering - RDD-based API - Spark 3.0.0 Documentation
mllib-collaborative-filtering.html 2024-08-16 12:20 43K Collaborative Filtering - RDD-based API - Spark 3.0.0 Documentation
mllib-data-types.html 2024-08-16 12:20 87K Data Types - RDD-based API - Spark 3.0.0 Documentation
mllib-decision-tree.html 2024-08-16 12:20 70K Decision Trees - RDD-based API - Spark 3.0.0 Documentation
mllib-dimensionality-reduction.html 2024-08-16 12:20 46K Dimensionality Reduction - RDD-based API - Spark 3.0.0 Documentation
mllib-ensembles.html 2024-08-16 12:20 114K Ensembles - RDD-based API - Spark 3.0.0 Documentation
mllib-evaluation-metrics.html 2024-08-16 12:20 153K Evaluation Metrics - RDD-based API - Spark 3.0.0 Documentation
mllib-feature-extraction.html 2024-08-16 12:20 74K Feature Extraction and Transformation - RDD-based API - Spark 3.0.0 Documentation
mllib-frequent-pattern-mining.html 2024-08-16 12:20 48K Frequent Pattern Mining - RDD-based API - Spark 3.0.0 Documentation
mllib-guide.html 2024-08-16 12:20 16K MLlib: RDD-based API - Spark 3.0.0 Documentation
mllib-isotonic-regression.html 2024-08-16 12:20 35K Isotonic regression - RDD-based API - Spark 3.0.0 Documentation
mllib-linear-methods.html 2024-08-16 12:20 77K Linear Methods - RDD-based API - Spark 3.0.0 Documentation
mllib-naive-bayes.html 2024-08-16 12:20 32K Naive Bayes - RDD-based API - Spark 3.0.0 Documentation
mllib-optimization.html 2024-08-16 12:20 48K Optimization - RDD-based API - Spark 3.0.0 Documentation
mllib-pmml-model-export.html 2024-08-16 12:20 18K PMML model export - RDD-based API - Spark 3.0.0 Documentation
mllib-statistics.html 2024-08-16 12:20 108K Basic Statistics - RDD-based API - Spark 3.0.0 Documentation
monitoring.html 2024-08-16 12:20 70K Monitoring and Instrumentation - Spark 3.0.0 Documentation
programming-guide.html 2024-08-16 12:20 8.8K Spark Programming Guide - Spark 3.0.0 Documentation
pyspark-migration-guide.html 2024-08-16 12:20 19K Migration Guide: PySpark (Python on Spark) - Spark 3.0.0 Documentation
quick-start.html 2024-08-16 12:20 53K Quick Start - Spark 3.0.0 Documentation
rdd-programming-guide.html 2024-08-16 12:20 153K RDD Programming Guide - Spark 3.0.0 Documentation
running-on-kubernetes.html 2024-08-16 12:20 90K Running Spark on Kubernetes - Spark 3.0.0 Documentation
running-on-mesos.html 2024-08-16 12:20 54K Running Spark on Mesos - Spark 3.0.0 Documentation
running-on-yarn.html 2024-08-16 12:20 52K Running Spark on YARN - Spark 3.0.0 Documentation
security.html 2024-08-16 12:20 55K Security - Spark 3.0.0 Documentation
spark-standalone.html 2024-08-16 12:20 42K Spark Standalone Mode - Spark 3.0.0 Documentation
sparkr-migration-guide.html 2024-08-16 12:20 19K Migration Guide: SparkR (R on Spark) - Spark 3.0.0 Documentation
sparkr.html 2024-08-16 12:20 84K SparkR (R on Spark) - Spark 3.0.0 Documentation
sql-data-sources-avro.html 2024-08-16 12:20 43K Apache Avro Data Source Guide - Spark 3.0.0 Documentation
sql-data-sources-binaryFile.html 2024-08-16 12:20 15K Binary File Data Source - Spark 3.0.0 Documentation
sql-data-sources-generic-options.html 2024-08-16 12:20 29K Generic File Source Options - Spark 3.0.0 Documentation
sql-data-sources-hive-tables.html 2024-08-16 12:20 49K Hive Tables - Spark 3.0.0 Documentation
sql-data-sources-jdbc.html 2024-08-16 12:20 41K JDBC To Other Databases - Spark 3.0.0 Documentation
sql-data-sources-json.html 2024-08-16 12:20 28K JSON Files - Spark 3.0.0 Documentation
sql-data-sources-load-save-functions.html 2024-08-16 12:20 52K Generic Load/Save Functions - Spark 3.0.0 Documentation
sql-data-sources-orc.html 2024-08-16 12:20 13K ORC Files - Spark 3.0.0 Documentation
sql-data-sources-parquet.html 2024-08-16 12:20 57K Parquet Files - Spark 3.0.0 Documentation
sql-data-sources-troubleshooting.html 2024-08-16 12:20 13K Troubleshooting - Spark 3.0.0 Documentation
sql-data-sources.html 2024-08-16 12:20 16K Data Sources - Spark 3.0.0 Documentation
sql-distributed-sql-engine.html 2024-08-16 12:20 16K Distributed SQL Engine - Spark 3.0.0 Documentation
sql-getting-started.html 2024-08-16 12:20 103K Getting Started - Spark 3.0.0 Documentation
sql-migration-guide.html 2024-08-16 12:20 117K Migration Guide: SQL, Datasets and DataFrame - Spark 3.0.0 Documentation
sql-migration-old.html 2024-08-16 12:20 10K Migration Guide - Spark 3.0.0 Documentation
sql-performance-tuning.html 2024-08-16 12:20 28K Performance Tuning - Spark 3.0.0 Documentation
sql-programming-guide.html 2024-08-16 12:20 14K Spark SQL and DataFrames - Spark 3.0.0 Documentation
sql-pyspark-pandas-with-arrow.html 2024-08-16 12:20 64K PySpark Usage Guide for Pandas with Apache Arrow - Spark 3.0.0 Documentation
sql-ref-ansi-compliance.html 2024-08-16 12:20 54K ANSI Compliance - Spark 3.0.0 Documentation
sql-ref-datatypes.html 2024-08-16 12:20 44K Data Types - Spark 3.0.0 Documentation
sql-ref-datetime-pattern.html 2024-08-16 12:20 30K Datetime patterns - Spark 3.0.0 Documentation
sql-ref-functions-builtin.html 2024-08-16 12:20 233K Built-in Functions - Spark 3.0.0 Documentation
sql-ref-functions-udf-aggregate.html 2024-08-16 12:20 54K User Defined Aggregate Functions (UDAFs) - Spark 3.0.0 Documentation
sql-ref-functions-udf-hive.html 2024-08-16 12:20 20K Integration with Hive UDFs/UDAFs/UDTFs - Spark 3.0.0 Documentation
sql-ref-functions-udf-scalar.html 2024-08-16 12:20 26K Scalar User Defined Functions (UDFs) - Spark 3.0.0 Documentation
sql-ref-functions.html 2024-08-16 12:20 14K Functions - Spark 3.0.0 Documentation
sql-ref-identifier.html 2024-08-16 12:20 15K Identifiers - Spark 3.0.0 Documentation
sql-ref-literals.html 2024-08-16 12:20 45K Literals - Spark 3.0.0 Documentation
sql-ref-null-semantics.html 2024-08-16 12:20 69K NULL Semantics - Spark 3.0.0 Documentation
sql-ref-syntax-aux-analyze-table.html 2024-08-16 12:20 25K ANALYZE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-analyze.html 2024-08-16 12:20 13K Analyze Statement - Spark 3.0.0 Documentation
sql-ref-syntax-aux-cache-cache-table.html 2024-08-16 12:20 18K CACHE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-cache-clear-cache.html 2024-08-16 12:20 14K CLEAR CACHE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-cache-refresh.html 2024-08-16 12:20 16K REFRESH - Spark 3.0.0 Documentation
sql-ref-syntax-aux-cache-uncache-table.html 2024-08-16 12:20 15K UNCACHE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-cache.html 2024-08-16 12:20 14K Cache Statements - Spark 3.0.0 Documentation
sql-ref-syntax-aux-conf-mgmt-reset.html 2024-08-16 12:20 14K RESET - Spark 3.0.0 Documentation
sql-ref-syntax-aux-conf-mgmt-set.html 2024-08-16 12:20 16K SET - Spark 3.0.0 Documentation
sql-ref-syntax-aux-conf-mgmt.html 2024-08-16 12:20 13K Configuration Management - Spark 3.0.0 Documentation
sql-ref-syntax-aux-describe-database.html 2024-08-16 12:20 21K DESCRIBE DATABASE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-describe-function.html 2024-08-16 12:20 26K DESCRIBE FUNCTION - Spark 3.0.0 Documentation
sql-ref-syntax-aux-describe-query.html 2024-08-16 12:20 22K DESCRIBE QUERY - Spark 3.0.0 Documentation
sql-ref-syntax-aux-describe-table.html 2024-08-16 12:20 38K DESCRIBE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-describe.html 2024-08-16 12:20 14K Describe Commands - Spark 3.0.0 Documentation
sql-ref-syntax-aux-refresh-table.html 2024-08-16 12:20 15K REFRESH TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-resource-mgmt-add-file.html 2024-08-16 12:20 15K ADD FILE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-resource-mgmt-add-jar.html 2024-08-16 12:20 15K ADD JAR - Spark 3.0.0 Documentation
sql-ref-syntax-aux-resource-mgmt-list-file.html 2024-08-16 12:20 16K LIST FILE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-resource-mgmt-list-jar.html 2024-08-16 12:20 17K LIST JAR - Spark 3.0.0 Documentation
sql-ref-syntax-aux-resource-mgmt.html 2024-08-16 12:20 14K Resource Management - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-columns.html 2024-08-16 12:20 19K SHOW COLUMNS - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-create-table.html 2024-08-16 12:20 18K SHOW CREATE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-databases.html 2024-08-16 12:20 18K SHOW DATABASES - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-functions.html 2024-08-16 12:20 22K SHOW FUNCTIONS - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-partitions.html 2024-08-16 12:20 23K SHOW PARTITIONS - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-table.html 2024-08-16 12:20 42K SHOW TABLE EXTENDED - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-tables.html 2024-08-16 12:20 22K SHOW TABLES - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-tblproperties.html 2024-08-16 12:20 22K SHOW TBLPROPERTIES - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show-views.html 2024-08-16 12:20 26K SHOW VIEWS - Spark 3.0.0 Documentation
sql-ref-syntax-aux-show.html 2024-08-16 12:20 15K Show Commands - Spark 3.0.0 Documentation
sql-ref-syntax-aux.html 2024-08-16 12:20 13K Auxiliary Statements - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-alter-database.html 2024-08-16 12:20 18K ALTER DATABASE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-alter-table.html 2024-08-16 12:20 51K ALTER TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-alter-view.html 2024-08-16 12:20 34K ALTER VIEW - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-database.html 2024-08-16 12:20 20K CREATE DATABASE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-function.html 2024-08-16 12:20 24K CREATE FUNCTION - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-table-datasource.html 2024-08-16 12:20 24K CREATE DATASOURCE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-table-hiveformat.html 2024-08-16 12:20 23K CREATE HIVEFORMAT TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-table-like.html 2024-08-16 12:20 19K CREATE TABLE LIKE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-table.html 2024-08-16 12:20 15K CREATE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-create-view.html 2024-08-16 12:20 19K CREATE VIEW - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-drop-database.html 2024-08-16 12:20 17K DROP DATABASE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-drop-function.html 2024-08-16 12:20 20K DROP FUNCTION - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-drop-table.html 2024-08-16 12:20 17K DROP TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-drop-view.html 2024-08-16 12:20 17K DROP VIEW - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-repair-table.html 2024-08-16 12:20 18K REPAIR TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl-truncate-table.html 2024-08-16 12:20 19K TRUNCATE TABLE - Spark 3.0.0 Documentation
sql-ref-syntax-ddl.html 2024-08-16 12:20 15K Data Definition Statements - Spark 3.0.0 Documentation
sql-ref-syntax-dml-insert-into.html 2024-08-16 12:20 36K INSERT INTO - Spark 3.0.0 Documentation
sql-ref-syntax-dml-insert-overwrite-directory-hive.html 2024-08-16 12:20 18K INSERT OVERWRITE DIRECTORY with Hive format - Spark 3.0.0 Documentation
sql-ref-syntax-dml-insert-overwrite-directory.html 2024-08-16 12:20 18K INSERT OVERWRITE DIRECTORY - Spark 3.0.0 Documentation
sql-ref-syntax-dml-insert-overwrite-table.html 2024-08-16 12:20 32K INSERT OVERWRITE - Spark 3.0.0 Documentation
sql-ref-syntax-dml-insert.html 2024-08-16 12:20 13K INSERT - Spark 3.0.0 Documentation
sql-ref-syntax-dml-load.html 2024-08-16 12:20 22K LOAD DATA - Spark 3.0.0 Documentation
sql-ref-syntax-dml.html 2024-08-16 12:20 12K Data Manipulation Statements - Spark 3.0.0 Documentation
sql-ref-syntax-qry-explain.html 2024-08-16 12:20 21K EXPLAIN - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-clusterby.html 2024-08-16 12:20 22K CLUSTER BY Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-cte.html 2024-08-16 12:20 24K Common Table Expression (CTE) - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-distribute-by.html 2024-08-16 12:20 22K DISTRIBUTE BY Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-groupby.html 2024-08-16 12:20 48K GROUP BY Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-having.html 2024-08-16 12:20 26K HAVING Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-hints.html 2024-08-16 12:20 31K Hints - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-inline-table.html 2024-08-16 12:20 20K Inline Table - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-join.html 2024-08-16 12:20 39K JOIN - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-like.html 2024-08-16 12:20 24K LIKE Predicate - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-limit.html 2024-08-16 12:20 23K LIMIT Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-orderby.html 2024-08-16 12:20 26K ORDER BY Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-sampling.html 2024-08-16 12:20 22K Sampling Queries - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-setops.html 2024-08-16 12:20 29K Set Operators - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-sortby.html 2024-08-16 12:20 35K SORT BY Clause - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-subqueries.html 2024-08-16 12:20 15K Subqueries - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-tvf.html 2024-08-16 12:20 21K Table-valued Functions (TVF) - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-usedb.html 2024-08-16 12:20 17K USE Database - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-where.html 2024-08-16 12:20 26K SELECT - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select-window.html 2024-08-16 12:20 45K Window Functions - Spark 3.0.0 Documentation
sql-ref-syntax-qry-select.html 2024-08-16 12:20 26K SELECT - Spark 3.0.0 Documentation
sql-ref-syntax-qry.html 2024-08-16 12:20 14K Data Retrieval - Spark 3.0.0 Documentation
sql-ref-syntax.html 2024-08-16 12:20 17K SQL Syntax - Spark 3.0.0 Documentation
sql-ref.html 2024-08-16 12:20 13K SQL Reference - Spark 3.0.0 Documentation
ss-migration-guide.html 2024-08-16 12:20 11K Migration Guide: Structured Streaming - Spark 3.0.0 Documentation
storage-openstack-swift.html 2024-08-16 12:20 15K Accessing OpenStack Swift from Spark - Spark 3.0.0 Documentation
streaming-custom-receivers.html 2024-08-16 12:20 30K Spark Streaming Custom Receivers - Spark 3.0.0 Documentation
streaming-kafka-0-10-integration.html 2024-08-16 12:20 47K Spark Streaming + Kafka Integration Guide (Kafka broker version 0.10.0 or higher) - Spark 3.0.0 Documentation
streaming-kafka-integration.html 2024-08-16 12:20 9.1K Spark Streaming + Kafka Integration Guide - Spark 3.0.0 Documentation
streaming-kinesis-integration.html 2024-08-16 12:20 30K Spark Streaming + Kinesis Integration - Spark 3.0.0 Documentation
streaming-programming-guide.html 2024-08-16 12:20 213K Spark Streaming - Spark 3.0.0 Documentation
structured-streaming-kafka-integration.html 2024-08-16 12:20 83K Structured Streaming + Kafka Integration Guide (Kafka broker version 0.10.0 or higher) - Spark 3.0.0 Documentation
structured-streaming-programming-guide.html 2024-08-16 12:20 261K Structured Streaming Programming Guide - Spark 3.0.0 Documentation
submitting-applications.html 2024-08-16 12:20 26K Submitting Applications - Spark 3.0.0 Documentation
tuning.html 2024-08-16 12:20 35K Tuning - Spark 3.0.0 Documentation
web-ui.html 2024-08-16 12:20 41K Web UI - Spark 3.0.0 Documentation
Welcome to the Spark documentation!
This readme will walk you through navigating and building the Spark documentation, which is included
here with the Spark source code. You can also find documentation specific to release versions of
Spark at https://spark.apache.org/documentation.html.
Read on to learn more about viewing documentation in plain text (i.e., markdown) or building the
documentation yourself. Why build it yourself? So that you have the docs that correspond to
whichever version of Spark you currently have checked out of revision control.
Prerequisites
The Spark documentation build uses a number of tools to build HTML docs and API docs in Scala, Java,
Python, R and SQL.
You need to have Ruby and
Python
installed. Also install the following libraries:
$ sudo gem install jekyll jekyll-redirect-from rouge
Note: If you are on a system with both Ruby 1.9 and Ruby 2.0 you may need to replace gem with gem2.0.
R Documentation
If you’d like to generate R documentation, you’ll need to install Pandoc
and install these libraries:
$ sudo Rscript -e 'install.packages(c("knitr", "devtools", "testthat", "rmarkdown"), repos="https://cloud.r-project.org/")'
$ sudo Rscript -e 'devtools::install_version("roxygen2", version = "5.0.1", repos="https://cloud.r-project.org/")'
Note: Other versions of roxygen2 might work in SparkR documentation generation but RoxygenNote field in $SPARK_HOME/R/pkg/DESCRIPTION is 5.0.1, which is updated if the version is mismatched.
API Documentation
To generate API docs for any language, you’ll need to install these libraries:
$ sudo pip install sphinx mkdocs numpy
Generating the Documentation HTML
We include the Spark documentation as part of the source (as opposed to using a hosted wiki, such as
the github wiki, as the definitive documentation) to enable the documentation to evolve along with
the source code and be captured by revision control (currently git). This way the code automatically
includes the version of the documentation that is relevant regardless of which version or release
you have checked out or downloaded.
In this directory you will find text files formatted using Markdown, with an “.md” suffix. You can
read those text files directly if you want. Start with index.md.
Execute jekyll build from the docs/ directory to compile the site. Compiling the site with
Jekyll will create a directory called _site containing index.html as well as the rest of the
compiled files.
You can modify the default Jekyll build as follows:
# Skip generating API docs (which takes a while)
$ SKIP_API=1 jekyll build
# Serve content locally on port 4000
$ jekyll serve --watch
# Build the site with extra features used on the live page
$ PRODUCTION=1 jekyll build
API Docs (Scaladoc, Javadoc, Sphinx, roxygen2, MkDocs)
You can build just the Spark scaladoc and javadoc by running ./build/sbt unidoc from the $SPARK_HOME directory.
Similarly, you can build just the PySpark docs by running make html from the
$SPARK_HOME/python/docs directory. Documentation is only generated for classes that are listed as
public in __init__.py. The SparkR docs can be built by running $SPARK_HOME/R/create-docs.sh, and
the SQL docs can be built by running $SPARK_HOME/sql/create-docs.sh
after building Spark first.
When you run jekyll build in the docs directory, it will also copy over the scaladoc and javadoc for the various
Spark subprojects into the docs directory (and then also into the _site directory). We use a
jekyll plugin to run ./build/sbt unidoc before building the site so if you haven’t run it (recently) it
may take some time as it generates all of the scaladoc and javadoc using Unidoc.
The jekyll plugin also generates the PySpark docs using Sphinx, SparkR docs
using roxygen2 and SQL docs
using MkDocs.
NOTE: To skip the step of building and copying over the Scala, Java, Python, R and SQL API docs, run SKIP_API=1
jekyll build. In addition, SKIP_SCALADOC=1, SKIP_PYTHONDOC=1, SKIP_RDOC=1 and SKIP_SQLDOC=1 can be used
to skip a single step of the corresponding language. SKIP_SCALADOC indicates skipping both the Scala and Java docs.
Automatically Rebuilding API Docs
jekyll serve --watch will only watch what’s in docs/, and it won’t follow symlinks. That means it won’t monitor your API docs under python/docs or elsewhere.
To work around this limitation for Python, install entr and run the following in a separate shell:
cd "$SPARK_HOME/python/docs"
find .. -type f -name '*.py' \
| entr -s 'make html && cp -r _build/html/. ../../docs/api/python'
Whenever there is a change to your Python code, entr will automatically rebuild the Python API docs and copy them to docs/, thus triggering a Jekyll update.