anchor.diff:  |`load` |`l` |No |Most recent load average |0.22
   |`cpu` | |No |Recent system CPU usage as percent |12
   |`uptime` |`u` |No |Node uptime |17.3m
  -|`node.role` |`r`, `role`, `dc`, `nodeRole` |Yes |Master eligible node (m);
  +|`node.role` |`r`, `role`, `nodeRole` |Yes |Master eligible node (m);
   Data node (d); Ingest node (i); Coordinating node only (-) |mdi
  -|`master` |`m` |Yes |Current master (*); |*
  +|`master` |`m` |Yes |Elected master (*); Not elected master (-) |*
   |`name` |`n` |Yes |Node name |Venom
   |`completion.size` |`cs`, `completionSize` |No |Size of completion |0b
   |`fielddata.memory_size` |`fm`, `fielddataMemory` |No |Used fielddata
  
positive.code: ["source","sh",subs="attributes,callouts"]
  --------------------------------------------------
  % curl 192.168.56.10:9200/_cat/nodes
  SP4H 4727 192.168.56.30 9300 {version} {jdk} 72.1gb 35.4 93.9mb 79 239.1mb 0.45 3.4h d m Boneyard
  _uhJ 5134 192.168.56.10 9300 {version} {jdk} 72.1gb 33.3 93.9mb 85 239.1mb 0.06 3.4h d * Athena
  HfDp 4562 192.168.56.20 9300 {version} {jdk} 72.2gb 74.5 93.9mb 83 239.1mb 0.12 3.4h d m Zarek
  --------------------------------------------------
  
  The first few columns tell you where your nodes live.  For sanity it
  
negative.code: ["source","sh",subs="attributes,callouts"]
  --------------------------------------------------
  % curl 192.168.56.10:9200/_cat/nodes?v&h=id,ip,port,v,m
  id   ip            port v           m
  pLSN 192.168.56.30 9300 {version} -
  k0zy 192.168.56.10 9300 {version} -
  6Tyi 192.168.56.20 9300 {version} *
  % curl 192.168.56.10:9200/_cat/nodes?h=id,ip,port,v,m
  pLSN 192.168.56.30 9300 {version} -
  k0zy 192.168.56.10 9300 {version} -
  6Tyi 192.168.56.20 9300 {version} *
  --------------------------------------------------
  
  