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From "Benoy Antony (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-10827) Iteration on KeyProviderFactory.serviceLoader is thread-unsafe
Date Tue, 15 Jul 2014 10:36:04 GMT
Benoy Antony created HADOOP-10827:
-------------------------------------

             Summary: Iteration on KeyProviderFactory.serviceLoader  is thread-unsafe
                 Key: HADOOP-10827
                 URL: https://issues.apache.org/jira/browse/HADOOP-10827
             Project: Hadoop Common
          Issue Type: Improvement
          Components: security
            Reporter: Benoy Antony
            Assignee: Benoy Antony


KeyProviderFactory uses _ServiceLoader_ framework to load _KeyProviderFactory_
{code}
  private static final ServiceLoader<KeyProviderFactory> serviceLoader =
      ServiceLoader.load(KeyProviderFactory.class);
{code}
The _ServiceLoader_ framework does lazy initialization of services which makes it thread unsafe.
If accessed from multiple threads, it is better to synchronize the access.
Similar synchronization has been done while loading compression codec providers via HADOOP-8406.




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