Method getRetryDelay

src/HBaseRpc.java:854–858

@return a delay in ms before retrying the RPC based on the number of attempts made so far. It has a linear retry up to 1 second (4 attempts) then an exponential retry past that. Some NSREs can be resolved in a second or so, some seem to easily take ~6 seconds, sometimes more when a RegionServer has

()

   * seconds, sometimes more when a RegionServer has failed and the master is 
   * slowly splitting its logs and re-assigning its regions. */
  final int getRetryDelay() {
    return attempt < 4
        ? 200 * (attempt + 2)     // 400, 600, 800, 1000
        : 1000 + (1 << attempt);  // 1016, 1032, 1064, 1128, 1256, 1512, ..
  }
  
  // --------------------- //
  // RPC utility functions //