anchor.diff:    3.5h d           *      Athena
     3.5h d           m      Zarek
   --------------------------------------------------
  +
  +[float]
  +=== Columns
  +
  +Below is an exhaustive list of the existing headers that can be
  +passed to `nodes?h=` to retrieve the relevant details in ordered
  +columns.  If no headers are specified, then those marked to Appear
  +by Default will appear. If any header is specified, then the defaults
  +are not used.
  +
  +Aliases can be used in place of the full header name for brevity.
  +Columns appear in the order that they are listed below unless a
  +different order is specified (e.g., `h=pid,id` versus `h=id,pid`).
  +
  +When specifying headers, the headers are not placed in the output
  +by default.  To have the headers appear in the output, use verbose
  +mode (`v`). The header name will match the supplied value (e.g.,
  +`pid` versus `p`).  For example:
  +
  +[source,shell]
  +--------------------------------------------------
  +% curl 192.168.56.10:9200/_cat/nodes?v\&h=id,ip,port,v,m
  +id   ip            port version m
  +pLSN 192.168.56.30 9300 1.0.1   m
  +k0zy 192.168.56.10 9300 1.0.1   m
  +6Tyi 192.168.56.20 9300 1.0.1   *
  +% curl 192.168.56.10:9200/_cat/nodes?h=id,ip,port,v,m
  +pLSN 192.168.56.30 9300 1.0.1 m
  +k0zy 192.168.56.10 9300 1.0.1 m
  +6Tyi 192.168.56.20 9300 1.0.1 *
  +--------------------------------------------------
  +
  +[cols="<,<,<,<,<",options="header",]
  +|=======================================================================
  +|Header |Alias |Appear by Default |Description |Example
  +|`id` |`nodeId` |No |Unique node ID |k0zy
  +|`pid` |`p` |No |Process ID |13061
  +|`host` |`h` |Yes |Host name |n1
  +|`ip` |`i` |Yes |IP address |127.0.1.1
  +|`port` |`po` |No |Bound transport port |9300
  +|`version` |`v` |No |Elasticsearch version |1.0.1
  +|`build` |`b` |No |Elasticsearch Build hash |5c03844
  +|`jdk` |`j` |No |Running Java version |1.8.0
  +|`disk.avail` |`d`, `disk`, `diskAvail` |No |Available disk space |1.8gb
  +|`heap.percent` |`hp`, `heapPercent` |No |Used heap percentage |7
  +|`heap.max` |`hm`, `heapMax` |No |Maximum configured heap |1015.6mb
  +|`ram.percent` |`rp`, `ramPercent` |No |Used total memory percentage |47
  +|`ram.max` |`rm`, `ramMax` |No |Total memory |2.9gb
  +|`load` |`l` |No |Most recent load average |0.22
  +|`uptime` |`u` |No |Node uptime |17.3m
  +|`node.role` |`r`, `role`, `dc`, `nodeRole` |Yes |Data node (d); Client
  +node (c) |d
  +|`master` |`m` |Yes |Current master (*); master eligible (m) |m
  +|`name` |`n` |Yes |Node name |Venom
  +|`completion.size` |`cs`, `completionSize` |No |Size of completion |0b
  +|`fielddata.memory_size` |`fm`, `fielddataMemory` |No |Used fielddata
  +cache memory |0b
  +|`fielddata.evictions` |`fe`, `fielddataEvictions` |No |Fielddata cache
  +evictions |0
  +|`filter_cache.memory_size` |`fcm`, `filterCacheMemory` |No |Used filter
  +cache memory |0b
  +|`filter_cache.evictions` |`fce`, `filterCacheEvictions` |No |Filter
  +cache evictions |0
  +|`flush.total` |`ft`, `flushTotal` |No |Number of flushes |1
  +|`flush.total_time` |`ftt`, `flushTotalTime` |No |Time spent in flush |1
  +|`get.current` |`gc`, `getCurrent` |No |Number of current get
  +operations |0
  +|`get.time` |`gti`, `getTime` |No |Time spent in get |14ms
  +|`get.total` |`gto`, `getTotal` |No |Number of get operations |2
  +|`get.exists_time` |`geti`, `getExistsTime` |No |Time spent in
  +successful gets |14ms
  +|`get.exists_total` |`geto`, `getExistsTotal` |No |Number of successful
  +get operations |2
  +|`get.missing_time` |`gmti`, `getMissingTime` |No |Time spent in failed
  +gets |0s
  +|`get.missing_total` |`gmto`, `getMissingTotal` |No |Number of failed
  +get operations |1
  +|`id_cache.memory_size` |`im`, `idCacheMemory` |No |Used ID cache
  +memory |216b
  +|`indexing.delete_current` |`idc`, `indexingDeleteCurrent` |No |Number
  +of current deletion operations |0
  +|`indexing.delete_time` |`idti`, `indexingDeleteTime` |No |Time spent in
  +deletions |2ms
  +|`indexing.delete_total` |`idto`, `indexingDeleteTotal` |No |Number of
  +deletion operations |2
  +|`indexing.index_current` |`iic`, `indexingIndexCurrent` |No |Number
  +of current indexing operations |0
  +|`indexing.index_time` |`iiti`, `indexingIndexTime` |No |Time spent in
  +indexing |134ms
  +|`indexing.index_total` |`iito`, `indexingIndexTotal` |No |Number of
  +indexing operations |1
  +|`merges.current` |`mc`, `mergesCurrent` |No |Number of current
  +merge operations |0
  +|`merges.current_docs` |`mcd`, `mergesCurrentDocs` |No |Number of
  +current merging documents |0
  +|`merges.current_size` |`mcs`, `mergesCurrentSize` |No |Size of current
  +merges |0b
  +|`merges.total` |`mt`, `mergesTotal` |No |Number of completed merge
  +operations |0
  +|`merges.total_docs` |`mtd`, `mergesTotalDocs` |No |Number of merged
  +documents |0
  +|`merges.total_size` |`mts`, `mergesTotalSize` |No |Size of current
  +merges |0b
  +|`merges.total_time` |`mtt`, `mergesTotalTime` |No |Time spent merging
  +documents |0s
  +|`percolate.current` |`pc`, `percolateCurrent` |No |Number of current
  +percolations |0
  +|`percolate.memory_size` |`pm`, `percolateMemory` |No |Memory used by
  +current percolations |0b
  +|`percolate.queries` |`pq`, `percolateQueries` |No |Number of
  +registered percolation queries |0
  +|`percolate.time` |`pti`, `percolateTime` |No |Time spent
  +percolating |0s
  +|`percolate.total` |`pto`, `percolateTotal` |No |Total percolations |0
  +|`refresh.total` |`rto`, `refreshTotal` |No |Number of refreshes |16
  +|`refresh.time` |`rti`, `refreshTime` |No |Time spent in refreshes |91ms
  +|`search.fetch_current` |`sfc`, `searchFetchCurrent` |No |Current fetch
  +phase operations |0
  +|`search.fetch_time` |`sfti`, `searchFetchTime` |No |Time spent in fetch
  +phase |37ms
  +|`search.fetch_total` |`sfto`, `searchFetchTotal` |No |Number of fetch
  +operations |7
  +|`search.open_contexts` |`so`, `searchOpenContexts` |No |Open search
  +contexts |0
  +|`search.query_current` |`sqc`, `searchFetchCurrent` |No |Current query
  +phase operations |0
  +|`search.query_time` |`sqti`, `searchFetchTime` |No |Time spent in query
  +phase |43ms
  +|`search.query_total` |`sqto`, `searchFetchTotal` |No |Number of query
  +operations |9
  +|`segments.count` |`sc`, `segmentsCount` |No |Number of segments |4
  +|`segments.memory` |`sm`, `segmentsMemory` |No |Memory used by
  +segments |1.4kb
  +|=======================================================================
  
positive.code: [source,shell]
  --------------------------------------------------
  % curl 192.168.56.10:9200/_cat/nodes
  SP4H 4727 192.168.56.30 9300 1.0.0.Beta2 1.6.0_27 72.1gb 35.4 93.9mb 79 239.1mb 0.45 3.4h d m Boneyard
  _uhJ 5134 192.168.56.10 9300 1.0.0.Beta2 1.6.0_27 72.1gb 33.3 93.9mb 85 239.1mb 0.06 3.4h d * Athena
  HfDp 4562 192.168.56.20 9300 1.0.0.Beta2 1.6.0_27 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,shell]
  --------------------------------------------------
  nodeId pid  ip            port version jdk
  u2PZ   4234 192.168.56.30 9300 1.0.1   1.6.0_27
  URzf   5443 192.168.56.10 9300 1.0.1   1.6.0_27
  ActN   3806 192.168.56.20 9300 1.0.1   1.6.0_27
  --------------------------------------------------
  
  
  