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https://issues.apache.org/jira/browse/HADOOP-15866?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang reassigned HADOOP-15866:
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Assignee: Wei-Chiu Chuang
> HADOOP-15523 breaks compatibility
> ---------------------------------
>
> Key: HADOOP-15866
> URL: https://issues.apache.org/jira/browse/HADOOP-15866
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.10.0, 3.2.0, 3.1.1, 2.9.2, 3.0.4, 3.3.0
> Reporter: Wei-Chiu Chuang
> Assignee: Wei-Chiu Chuang
> Priority: Blocker
>
> Our internal tool found HADOOP-15523 breaks public API compatibility:
> class CommonConfigurationKeysPublic
> || ||Change||Effect||
> |1|Field HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_SECS has been renamed to
> HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_KEY.|Recompilation of a client
> program may be terminated with the message: cannot find variable
> HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_SECS in
> CommonConfigurationKeysPublic.|
> |2|Field HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_SECS_DEFAULT has been
> renamed to HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_DEFAULT.|Recompilation
> of a client program may be terminated with the message: cannot find variable
> HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_SECS_DEFAULT in
> CommonConfigurationKeysPublic.|
> HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT_SECS_DEFAULT is used to
> instantiate a variable in ShellBasedGroupsMapping objects, and since almost
> all applications requires groups mapping, this can cause runtime error if
> application loads multiple versions of Hadoop library.
> IMO this is a blocker for 3.2.0
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