Sangjin Lee created HADOOP-10893:
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Summary: isolated classloader on the client side
Key: HADOOP-10893
URL: https://issues.apache.org/jira/browse/HADOOP-10893
Project: Hadoop Common
Issue Type: Bug
Components: util
Affects Versions: 2.4.0
Reporter: Sangjin Lee
Assignee: Sangjin Lee
We have the job classloader on the mapreduce tasks that run on the cluster. It
has a benefit of being able to isolate class space for user code and avoid
version clashes.
Although it occurs less often, version clashes do occur on the client JVM. It
would be good to introduce an isolated classloader on the client side as well
to address this. A natural point to introduce this may be through RunJar, as
that's how most of hadoop jobs are run.
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