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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/05/18 19:22:13 UTC
[jira] [Commented] (HADOOP-13044) Amazon S3 library 10.10.60+
(JDK8u60+) depends on http components 4.3
[ https://issues.apache.org/jira/browse/HADOOP-13044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15289632#comment-15289632 ]
Steve Loughran commented on HADOOP-13044:
-----------------------------------------
the patch in HADOOP-12767 is a superset of this; closing as duplicate
> Amazon S3 library 10.10.60+ (JDK8u60+) 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
> Environment: JDK 8u60
> 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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