You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-issues@hadoop.apache.org by "Sangjin Lee (JIRA)" <ji...@apache.org> on 2014/09/02 22:26:20 UTC
[jira] [Created] (HADOOP-11048) user/custom LogManager fails to
load if the client classloader is enabled
Sangjin Lee created HADOOP-11048:
------------------------------------
Summary: user/custom LogManager fails to load if the client classloader is enabled
Key: HADOOP-11048
URL: https://issues.apache.org/jira/browse/HADOOP-11048
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 2.6.0
Reporter: Sangjin Lee
Assignee: Sangjin Lee
If the client classloader is enabled (HADOOP-10893) and you happen to use a user-provided log manager via -Djava.util.logging.manager, it fails to load the custom log manager:
{noformat}
Could not load Logmanager "org.foo.LogManager"
java.lang.ClassNotFoundException: org.foo.LogManager
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
at java.util.logging.LogManager$1.run(LogManager.java:191)
at java.security.AccessController.doPrivileged(Native Method)
at java.util.logging.LogManager.<clinit>(LogManager.java:181)
at java.util.logging.Logger.demandLogger(Logger.java:339)
at java.util.logging.Logger.getLogger(Logger.java:393)
at com.google.common.collect.MapMakerInternalMap.<clinit>(MapMakerInternalMap.java:136)
at com.google.common.collect.MapMaker.makeCustomMap(MapMaker.java:602)
at com.google.common.collect.Interners$CustomInterner.<init>(Interners.java:59)
at com.google.common.collect.Interners.newWeakInterner(Interners.java:103)
at org.apache.hadoop.util.StringInterner.<clinit>(StringInterner.java:49)
at org.apache.hadoop.conf.Configuration.loadResource(Configuration.java:2293)
at org.apache.hadoop.conf.Configuration.loadResources(Configuration.java:2185)
at org.apache.hadoop.conf.Configuration.getProps(Configuration.java:2102)
at org.apache.hadoop.conf.Configuration.get(Configuration.java:851)
at org.apache.hadoop.util.RunJar.run(RunJar.java:179)
at org.apache.hadoop.util.RunJar.main(RunJar.java:136)
{noformat}
This is caused because Configuration.loadResources() is invoked before the client classloader is created and made available.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)