Examples of org.apache.hadoop.ipc.RetryCache

org.apache.hadoop.ipc.RetryCache
Maintains a cache of non-idempotent requests that have been successfully processed by the RPC server implementation, to handle the retries. A request is uniquely identified by the unique client ID + call ID of the RPC request. On receiving retried request, an entry will be found in the {@link RetryCache} and the previous response is sent back to the request.
To look an implementation using this cache, see HDFS FSNamesystem class.

          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("NameNodeRetryCache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("Namenode Retry Cache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("Namenode Retry Cache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("Namenode Retry Cache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("Namenode Retry Cache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("NameNodeRetryCache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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          DFS_NAMENODE_RETRY_CACHE_EXPIRYTIME_MILLIS_DEFAULT);
      LOG.info("Retry cache will use " + heapPercent
          + " of total heap and retry cache entry expiry time is "
          + entryExpiryMillis + " millis");
      long entryExpiryNanos = entryExpiryMillis * 1000 * 1000;
      return new RetryCache("NameNodeRetryCache", heapPercent,
          entryExpiryNanos);
    }
    return null;
  }

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Related Classes of org.apache.hadoop.ipc.RetryCache

org.apache.hadoop.hdfs.server.namenode.FSNamesystem

java.util.UUID

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