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https://issues.apache.org/jira/browse/HADOOP-13044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15253160#comment-15253160
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Kai Sasaki commented on HADOOP-13044:
-------------------------------------
[~iwasakims] [~ste...@apache.org] Thanks for checking.
We are using the latest AWS SDK (1.10.60) because the old version of AWS SDK
does not work with JDK8 due to [authentication
error|https://github.com/aws/aws-sdk-java/issues/484]. According to this
ticket, the same problem is occurred in at least v1.10.10. v1.10.6 might have
same problem.
I'll track HADOOP-12767. Can I close this as duplicated?
> 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
> Affects Versions: 2.8.0
> 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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