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https://issues.apache.org/jira/browse/HADOOP-18931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17787690#comment-17787690
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ASF GitHub Bot commented on HADOOP-18931:
-----------------------------------------
virajjasani commented on code in PR #6197:
URL: https://github.com/apache/hadoop/pull/6197#discussion_r1398534424
##########
hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/ClassUtil.java:
##########
@@ -36,13 +36,25 @@ public class ClassUtil {
* @return a jar file that contains the class, or null.
*/
public static String findContainingJar(Class<?> clazz) {
- ClassLoader loader = clazz.getClassLoader();
- String classFile = clazz.getName().replaceAll("\\.", "/") + ".class";
+ return findContainingResource(clazz.getClassLoader(), clazz.getName(),
"jar");
+ }
+
+ /**
+ * Find the absolute location of the class.
+ *
+ * @param clazz the class to find.
+ * @return the class file with absolute location, or null.
+ */
+ public static String findClassLocation(Class<?> clazz) {
Review Comment:
done
> FileSystem.getFileSystemClass() to log at debug the jar the .class came from
> ----------------------------------------------------------------------------
>
> Key: HADOOP-18931
> URL: https://issues.apache.org/jira/browse/HADOOP-18931
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 3.3.6
> Reporter: Steve Loughran
> Priority: Minor
> Labels: pull-request-available
>
> we want to be able to log the jar the filesystem implementation class, so
> that we can identify which version of a module the class came from.
> this is to help track down problems where different machines in the cluster
> or the .tar.gz bundle is out of date.
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