THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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On the ResourceManager side, it does not maintain the blacklist temporarily. When JobMaster requests resources from ResourceManager, it passes the blacklist information to ResourceManager. ResourceManager needs to consider blacklist when requests or filters resources and blacklist information will be encapsulated in the form of filtering resources required by external resource management system(such as yarn) when request new container.
Classes and Interfaces of (Job, Host) blacklist
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