public Command withMaxConcurrency(String maxConcurrency) {
        setMaxConcurrency(maxConcurrency);
        return this;
    }
<p>
The maximum number of managed nodes that are allowed to run the command at the same time. You can specify a
number of managed nodes, such as 10, or a percentage of nodes, such as 10%. The default value is 50. For more
information about how to use <code>MaxConcurrency</code>, see <a
href="https://docs.aws.amazon.com/systems-manager/latest/userguide/run-command.html">Amazon Web Services Systems
Manager Run Command</a> in the <i>Amazon Web Services Systems Manager User Guide</i>.
</p>

@param maxConcurrency
       The maximum number of managed nodes that are allowed to run the command at the same time. You can specify
       a number of managed nodes, such as 10, or a percentage of nodes, such as 10%. The default value is 50. For
       more information about how to use <code>MaxConcurrency</code>, see <a
       href="https://docs.aws.amazon.com/systems-manager/latest/userguide/run-command.html">Amazon Web Services
       Systems Manager Run Command</a> in the <i>Amazon Web Services Systems Manager User Guide</i>.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/Command.java