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https://issues.apache.org/jira/browse/HADOOP-13044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15252013#comment-15252013
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Steve Loughran commented on HADOOP-13044:
-----------------------------------------
# HADOOP-12767 covers both the update and the extra deprecation warnings
# Hadoop 2.8 is (currently) building against aws-java-sdk-s3 versionb 1.10.6.
Is this the version of the AWS which is exhibiting this problem, or are you
testing against a more recent one?
> Amazon S3 library depends on http components 4.3
> ------------------------------------------------
>
> Key: HADOOP-13044
> URL: https://issues.apache.org/jira/browse/HADOOP-13044
> Project: Hadoop Common
> Issue Type: Improvement
> Components: build, fs/s3
> Reporter: Kai Sasaki
> Assignee: Kai Sasaki
> Attachments: HADOOP-13044.01.patch
>
>
> In case of using AWS SDK in the classpath of hadoop, we faced an issue caused
> by incompatiblity of AWS SDK and httpcomponents.
> {code}
> java.lang.NoSuchFieldError: INSTANCE
> at
> com.amazonaws.http.conn.SdkConnectionKeepAliveStrategy.getKeepAliveDuration(SdkConnectionKeepAliveStrategy.java:48)
> at
> org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:535)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:906)
> at
> org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:805)
> {code}
> The latest AWS SDK depends on 4.3.x which has
> [DefaultConnectionKeepAliveStrategy.INSTANCE|http://hc.apache.org/httpcomponents-client-4.3.x/httpclient/apidocs/org/apache/http/impl/client/DefaultConnectionKeepAliveStrategy.html#INSTANCE].
> This field is introduced from 4.3.
> This will allow us to avoid {{CLASSPATH}} confliction around httpclient
> versions.
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