[jira] [Created] (FLINK-24568) Configuration equals method does not properly check equality

["Jessie Anderson (Jira)" <ji...@apache.org>]

Jessie Anderson created FLINK-24568:
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             Summary: Configuration equals method does not properly check equality
                 Key: FLINK-24568
                 URL: https://issues.apache.org/jira/browse/FLINK-24568
             Project: Flink
          Issue Type: Bug
          Components: Runtime / Configuration
            Reporter: Jessie Anderson


Configuration's [equals|https://github.com/apache/flink/blob/master/flink-core/src/main/java/org/apache/flink/configuration/Configuration.java#L938] method only checks the configuration keys of the object the method is called on, meaning that the method will still return true if the object passed as the function argument contains additional config parameters. For example:
{code:java}
Configuration a = new Configuration();
Configuration b = new Configuration();

a.set(TaskManagerOptions.TOTAL_PROCESS_MEMORY, MemorySize.parse("1024mb"));
b.set(TaskManagerOptions.TOTAL_PROCESS_MEMORY, MemorySize.parse("1024mb"));
b.set(TaskManagerOptions.KILL_ON_OUT_OF_MEMORY, true);

a.equals(b); // true
b.equals(a); // false {code}



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