org.apache.hudi.table.upgrade

Class ZeroToOneUpgradeHandler

java.lang.Object

org.apache.hudi.table.upgrade.ZeroToOneUpgradeHandler

All Implemented Interfaces:

UpgradeHandler

public class ZeroToOneUpgradeHandler
extends Object
implements UpgradeHandler

Upgrade handle to assist in upgrading hoodie table from version 0 to 1.

Constructor Summary

Constructors

Constructor and Description
ZeroToOneUpgradeHandler()

Method Summary

Modifier and Type	Method and Description
protected void	recreateMarkers(String commitInstantTime, HoodieTable table, HoodieEngineContext context, int parallelism) Recreate markers in new format.
Map<ConfigProperty,String>	upgrade(HoodieWriteConfig config, HoodieEngineContext context, String instantTime, SupportsUpgradeDowngrade upgradeDowngradeHelper) to be invoked to upgrade hoodie table from one version to a higher version.

Methods inherited from class java.lang.Object

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

Constructor Detail

ZeroToOneUpgradeHandler

public ZeroToOneUpgradeHandler()

Method Detail

upgrade

public Map<ConfigProperty,String> upgrade(HoodieWriteConfig config,
                                          HoodieEngineContext context,
                                          String instantTime,
                                          SupportsUpgradeDowngrade upgradeDowngradeHelper)

Description copied from interface: UpgradeHandler

to be invoked to upgrade hoodie table from one version to a higher version.

Specified by:

upgrade in interface UpgradeHandler

Parameters:

config - instance of HoodieWriteConfig to be used.

context - instance of HoodieEngineContext to be used.

instantTime - current instant time that should not be touched.

upgradeDowngradeHelper - instance of SupportsUpgradeDowngrade to be used.

Returns:

Map of config properties and its values to be added to table properties.

recreateMarkers

protected void recreateMarkers(String commitInstantTime,
                               HoodieTable table,
                               HoodieEngineContext context,
                               int parallelism)
                        throws HoodieRollbackException

Recreate markers in new format. Step1: Delete existing markers Step2: Collect all rollback file info. Step3: recreate markers for all interested files.

Parameters:

commitInstantTime - instant of interest for which markers need to be recreated.

table - instance of HoodieTable to use

context - instance of HoodieEngineContext to use

Throws:

HoodieRollbackException - on any exception during upgrade.