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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13044) Amazon S3 library 10.10 (JDK8u60+) depends on http components 4.3
Date Fri, 22 Apr 2016 09:10:13 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13044?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated HADOOP-13044:
------------------------------------
    Summary: Amazon S3 library 10.10 (JDK8u60+) depends on http components 4.3  (was: Amazon
S3 library depends on http components 4.3)

> Amazon S3 library 10.10 (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
>            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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