org.apache.hadoop.fs.s3a.impl

Class V2Migration

java.lang.Object

org.apache.hadoop.fs.s3a.impl.V2Migration

public final class V2Migration
extends Object

This class provides utility methods required for migrating S3A to AWS Java SDK V2. For more information on the upgrade, see HADOOP-18073.

in HADOOP-18382. Upgrade AWS SDK to V2 - Prerequisites, this class contained a series of `LogExactlyOnce` loggers to warn on the first use of a feature which would change incompatibly; this shipped in Hadoop 3.3.5.

With the move to v2 completed, attempts to use the v1 classes, will fail -except for the special case of support for v1 credential providers.

The warning methods are still present, where appropriate, but downgraded to debug and only retained for debugging migration issues.

Field Summary

Fields

Modifier and Type	Field and Description
static org.slf4j.Logger	SDK_V2_UPGRADE_LOG

Method Summary

Modifier and Type	Method and Description
static void	v1RequestHandlersUsed(String handlers) Notes use of request handlers.

Methods inherited from class java.lang.Object

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

Field Detail

SDK_V2_UPGRADE_LOG

public static final org.slf4j.Logger SDK_V2_UPGRADE_LOG

Method Detail

v1RequestHandlersUsed

public static void v1RequestHandlersUsed(String handlers)

Notes use of request handlers.

Parameters:

handlers - handlers declared