| Package | Description | 
|---|---|
| org.apache.hadoop.yarn.client.api.async | |
| org.apache.hadoop.yarn.client.api.async.impl | 
| Class and Description | 
|---|
| AMRMClientAsync AMRMClientAsynchandles communication with the ResourceManager
 and provides asynchronous updates on events such as container allocations and
 completions. | 
| AMRMClientAsync.AbstractCallbackHandler 
 The callback abstract class. | 
| AMRMClientAsync.CallbackHandler Deprecated. 
 Use  AMRMClientAsync.AbstractCallbackHandlerinstead. | 
| NMClientAsync NMClientAsynchandles communication with all the NodeManagers
 and provides asynchronous updates on getting responses from them. | 
| NMClientAsync.AbstractCallbackHandler 
 The callback abstract class. | 
| NMClientAsync.CallbackHandler Deprecated. 
 Use  NMClientAsync.AbstractCallbackHandlerinstead.
 The callback interface needs to be implemented by  Once a callback happens, the users can chose to act on it in blocking or non-blocking manner. If the action on callback is done in a blocking manner, some of the threads performing requests on NodeManagers may get blocked depending on how many threads in the pool are busy. 
 The implementation of the callback function should not throw the
 unexpected exception. Otherwise,  | 
| Class and Description | 
|---|
| AMRMClientAsync AMRMClientAsynchandles communication with the ResourceManager
 and provides asynchronous updates on events such as container allocations and
 completions. | 
| AMRMClientAsync.AbstractCallbackHandler 
 The callback abstract class. | 
| AMRMClientAsync.CallbackHandler Deprecated. 
 Use  AMRMClientAsync.AbstractCallbackHandlerinstead. | 
| NMClientAsync NMClientAsynchandles communication with all the NodeManagers
 and provides asynchronous updates on getting responses from them. | 
| NMClientAsync.AbstractCallbackHandler 
 The callback abstract class. | 
| NMClientAsync.CallbackHandler Deprecated. 
 Use  NMClientAsync.AbstractCallbackHandlerinstead.
 The callback interface needs to be implemented by  Once a callback happens, the users can chose to act on it in blocking or non-blocking manner. If the action on callback is done in a blocking manner, some of the threads performing requests on NodeManagers may get blocked depending on how many threads in the pool are busy. 
 The implementation of the callback function should not throw the
 unexpected exception. Otherwise,  | 
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