Package org.apache.iceberg.spark.actions

Class ComputePartitionStatsSparkAction

java.lang.Object

org.apache.iceberg.spark.actions.ComputePartitionStatsSparkAction

All Implemented Interfaces:

Action<ComputePartitionStats,ComputePartitionStats.Result>, ComputePartitionStats

public class ComputePartitionStatsSparkAction
extends Object
implements ComputePartitionStats

Computes the stats incrementally after the snapshot that has partition stats file till the given snapshot (uses current snapshot if not specified) and writes the combined result into a PartitionStatisticsFile after merging the stats for a given snapshot. Does a full compute if previous statistics file does not exist. Also registers the PartitionStatisticsFile to table metadata.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.iceberg.actions.ComputePartitionStats

ComputePartitionStats.Result

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.apache.iceberg.relocated.com.google.common.base.Joiner	COMMA_JOINER
protected static final org.apache.iceberg.relocated.com.google.common.base.Splitter	COMMA_SPLITTER
protected static final String	FILE_PATH
protected static final String	LAST_MODIFIED
protected static final String	MANIFEST
protected static final String	MANIFEST_LIST
protected static final String	OTHERS
protected static final String	STATISTICS_FILES

Method Summary

Modifier and Type	Method	Description
protected org.apache.spark.sql.Dataset<FileInfo>	allReachableOtherMetadataFileDS(Table table)
protected org.apache.spark.sql.Dataset<FileInfo>	contentFileDS(Table table)
protected org.apache.spark.sql.Dataset<FileInfo>	contentFileDS(Table table, Set<Long> snapshotIds)
protected org.apache.iceberg.spark.actions.BaseSparkAction.DeleteSummary	deleteFiles(ExecutorService executorService, Consumer<String> deleteFunc, Iterator<FileInfo> files)	Deletes files and keeps track of how many files were removed for each file type.
protected org.apache.iceberg.spark.actions.BaseSparkAction.DeleteSummary	deleteFiles(SupportsBulkOperations io, Iterator<FileInfo> files)
ComputePartitionStats.Result	execute()	Executes this action.
protected org.apache.spark.sql.Dataset<org.apache.spark.sql.Row>	loadMetadataTable(Table table, MetadataTableType type)
protected org.apache.spark.sql.Dataset<FileInfo>	manifestDS(Table table)
protected org.apache.spark.sql.Dataset<FileInfo>	manifestDS(Table table, Set<Long> snapshotIds)
protected org.apache.spark.sql.Dataset<FileInfo>	manifestListDS(Table table)
protected org.apache.spark.sql.Dataset<FileInfo>	manifestListDS(Table table, Set<Long> snapshotIds)
protected JobGroupInfo	newJobGroupInfo(String groupId, String desc)
protected Table	newStaticTable(String metadataFileLocation, FileIO io)
protected Table	newStaticTable(TableMetadata metadata, FileIO io)
ComputePartitionStatsSparkAction	option(String name, String value)
protected Map<String,String>	options()
ComputePartitionStatsSparkAction	options(Map<String,String> newOptions)
protected org.apache.spark.sql.Dataset<FileInfo>	otherMetadataFileDS(Table table)
protected ComputePartitionStatsSparkAction	self()
ComputePartitionStats	snapshot(long newSnapshotId)	Choose the table snapshot to compute partition stats.
protected org.apache.spark.sql.SparkSession	spark()
protected org.apache.spark.api.java.JavaSparkContext	sparkContext()
protected org.apache.spark.sql.Dataset<FileInfo>	statisticsFileDS(Table table, Set<Long> snapshotIds)
protected <T> T	withJobGroupInfo(JobGroupInfo info, Supplier<T> supplier)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.iceberg.actions.Action

option, options

Field Details

MANIFEST

protected static final String MANIFEST

See Also:

• Constant Field Values

MANIFEST_LIST

protected static final String MANIFEST_LIST

See Also:

• Constant Field Values

STATISTICS_FILES

protected static final String STATISTICS_FILES

See Also:

• Constant Field Values

OTHERS

protected static final String OTHERS

See Also:

• Constant Field Values

FILE_PATH

protected static final String FILE_PATH

See Also:

• Constant Field Values

LAST_MODIFIED

protected static final String LAST_MODIFIED

See Also:

• Constant Field Values

COMMA_SPLITTER

protected static final org.apache.iceberg.relocated.com.google.common.base.Splitter COMMA_SPLITTER

COMMA_JOINER

protected static final org.apache.iceberg.relocated.com.google.common.base.Joiner COMMA_JOINER

Method Details

self

protected ComputePartitionStatsSparkAction self()

snapshot

public ComputePartitionStats snapshot(long newSnapshotId)

Description copied from interface: ComputePartitionStats

Choose the table snapshot to compute partition stats.

Specified by:

snapshot in interface ComputePartitionStats

Parameters:

newSnapshotId - long ID of the snapshot for which stats need to be computed

Returns:

this for method chaining

execute

public ComputePartitionStats.Result execute()

Description copied from interface: Action

Executes this action.

Specified by:

execute in interface Action<ComputePartitionStats,ComputePartitionStats.Result>

Returns:

the result of this action

spark

protected org.apache.spark.sql.SparkSession spark()

sparkContext

protected org.apache.spark.api.java.JavaSparkContext sparkContext()

option

public ComputePartitionStatsSparkAction option(String name,
 String value)

options

public ComputePartitionStatsSparkAction options(Map<String,String> newOptions)

options

protected Map<String,String> options()

withJobGroupInfo

protected <T> T withJobGroupInfo(JobGroupInfo info,
 Supplier<T> supplier)

newJobGroupInfo

protected JobGroupInfo newJobGroupInfo(String groupId,
 String desc)

newStaticTable

protected Table newStaticTable(TableMetadata metadata,
 FileIO io)

newStaticTable

protected Table newStaticTable(String metadataFileLocation,
 FileIO io)

contentFileDS

protected org.apache.spark.sql.Dataset<FileInfo> contentFileDS(Table table)

contentFileDS

protected org.apache.spark.sql.Dataset<FileInfo> contentFileDS(Table table,
 Set<Long> snapshotIds)

manifestDS

protected org.apache.spark.sql.Dataset<FileInfo> manifestDS(Table table)

manifestDS

protected org.apache.spark.sql.Dataset<FileInfo> manifestDS(Table table,
 Set<Long> snapshotIds)

manifestListDS

protected org.apache.spark.sql.Dataset<FileInfo> manifestListDS(Table table)

manifestListDS

protected org.apache.spark.sql.Dataset<FileInfo> manifestListDS(Table table,
 Set<Long> snapshotIds)

statisticsFileDS

protected org.apache.spark.sql.Dataset<FileInfo> statisticsFileDS(Table table,
 Set<Long> snapshotIds)

otherMetadataFileDS

protected org.apache.spark.sql.Dataset<FileInfo> otherMetadataFileDS(Table table)

allReachableOtherMetadataFileDS

protected org.apache.spark.sql.Dataset<FileInfo> allReachableOtherMetadataFileDS(Table table)

loadMetadataTable

protected org.apache.spark.sql.Dataset<org.apache.spark.sql.Row> loadMetadataTable(Table table,
 MetadataTableType type)

deleteFiles

protected org.apache.iceberg.spark.actions.BaseSparkAction.DeleteSummary deleteFiles(ExecutorService executorService,
 Consumer<String> deleteFunc,
 Iterator<FileInfo> files)

Deletes files and keeps track of how many files were removed for each file type.

Parameters:

executorService - an executor service to use for parallel deletes

deleteFunc - a delete func

files - an iterator of Spark rows of the structure (path: String, type: String)

Returns:

stats on which files were deleted

deleteFiles

protected org.apache.iceberg.spark.actions.BaseSparkAction.DeleteSummary deleteFiles(SupportsBulkOperations io,
 Iterator<FileInfo> files)