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Revert "Disable caching for JarURLConnection to avoid sharing JarFile with other users when loading resource from URL in Configuration class. Contributed by Zhihai Xu" 

This reverts commit 7576b4247b.
This commit is contained in:
Zhihai Xu 2015-09-18 10:25:38 -07:00
parent 6041fc75d8
commit 7c429fbaa9
2 changed files with 1 additions and 14 deletions
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4
hadoop-common-project/hadoop-common/CHANGES.txt
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@ -270,10 +270,6 @@ Release 2.8.0 - UNRELEASED
HADOOP-12413. AccessControlList should avoid calling getGroupNames in
isUserInList with empty groups. (Zhihai Xu via cnauroth)
HADOOP-12404. Disable caching for JarURLConnection to avoid sharing
JarFile with other users when loading resource from URL in Configuration
class. (zxu)
OPTIMIZATIONS
HADOOP-11785. Reduce the number of listStatus operation in distcp

11
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/conf/Configuration.java
View File

@ -34,9 +34,7 @@
import java.io.Writer;
import java.lang.ref.WeakReference;
import java.net.InetSocketAddress;
import java.net.JarURLConnection;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
@ -2469,14 +2467,7 @@ private Document parse(DocumentBuilder builder, URL url)
if (url == null) {
return null;
}
URLConnection connection = url.openConnection();
if (connection instanceof JarURLConnection) {
// Disable caching for JarURLConnection to avoid sharing JarFile
// with other users.
connection.setUseCaches(false);
}
return parse(builder, connection.getInputStream(), url.toString());
return parse(builder, url.openStream(), url.toString());
}
private Document parse(DocumentBuilder builder, InputStream is,