| Package | Description | 
|---|---|
| org.apache.hadoop.ipc | Tools to help define network clients and servers. | 
| Modifier and Type | Class and Description | 
|---|---|
| static class  | RetryCache.CacheEntryCacheEntry is tracked using unique client ID and callId of the RPC request | 
| static class  | RetryCache.CacheEntryWithPayloadCacheEntry with payload that tracks the previous response or parts of
 previous response to be used for generating response for retried requests. | 
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