anchor.diff:  [source,sh]
   ----------------------------------------------------------------------------
   > curl -XGET 'localhost:9200/_cat/recovery?v'
  -index shard time type    stage source target files percent bytes     percent
  -wiki  0     73   store done  hostA  hostA  36    100.0%  24982806 100.0%
  -wiki  1     245  store done  hostA  hostA  33    100.0%  24501912 100.0%
  -wiki  2     230  store done  hostA  hostA  36    100.0%  30267222 100.0%
  +index shard time type  stage source_host target_host repository snapshot files files_percent bytes bytes_percent total_files total_bytes translog translog_percent total_translog
  +index 0     87ms store done  127.0.0.1   127.0.0.1   n/a        n/a      0     0.0%          0     0.0%          0           0           0        100.0%           0
  +index 1     97ms store done  127.0.0.1   127.0.0.1   n/a        n/a      0     0.0%          0     0.0%          0           0           0        100.0%           0
  +index 2     93ms store done  127.0.0.1   127.0.0.1   n/a        n/a      0     0.0%          0     0.0%          0           0           0        100.0%           0
  +index 3     90ms store done  127.0.0.1   127.0.0.1   n/a        n/a      0     0.0%          0     0.0%          0           0           0        100.0%           0
  +index 4     9ms  store done  127.0.0.1   127.0.0.1   n/a        n/a      0     0.0%          0     0.0%          0           0           0        100.0%           0
   ---------------------------------------------------------------------------
   
   In the above case, the source and target nodes are the same because the recovery
  
positive.code: --------------------------------------------------------------------------------
  > curl -XPOST 'localhost:9200/_snapshot/imdb/snapshot_2/_restore'
  {"acknowledged":true}
  > curl -XGET 'localhost:9200/_cat/recovery?v'
  index shard time type     stage repository snapshot files percent bytes percent
  imdb  0     1978 snapshot done  imdb       snap_1   79    8.0%    12086 9.0%
  imdb  1     2790 snapshot index imdb       snap_1   88    7.7%    11025 8.1%
  imdb  2     2790 snapshot index imdb       snap_1   85    0.0%    12072 0.0%
  imdb  3     2796 snapshot index imdb       snap_1   85    2.4%    12048 7.2%
  imdb  4     819  snapshot init  imdb       snap_1   0     0.0%    0     0.0%
  --------------------------------------------------------------------------------
  
  
  
negative.code: > curl -XPUT 'localhost:9200/wiki/_settings' -d'{"number_of_replicas":1}'
  {"acknowledged":true}
  
  > curl -XGET 'localhost:9200/_cat/recovery?v&h=i,s,t,ty,st,shost,thost,f,fp,b,bp'
  i     s t      ty      st    shost  thost  f     fp      b        bp
  wiki  0 1252ms store   done  hostA  hostA  4     100.0%  23638870 100.0%
  wiki  0 1672ms replica index hostA  hostB  4     75.0%   23638870 48.8%
  wiki  1 1698ms replica index hostA  hostB  4     75.0%   23348540 49.4%
  wiki  1 4812ms store   done  hostA  hostA  33    100.0%  24501912 100.0%
  wiki  2 1689ms replica index hostA  hostB  4     75.0%   28681851 40.2%
  wiki  2 5317ms store   done  hostA  hostA  36    100.0%  30267222 100.0%
  ----------------------------------------------------------------------------
  
  We can see in the above listing that our 3 initial shards are in various stages
  