195 lines
8.5 KiB
Plaintext
195 lines
8.5 KiB
Plaintext
[[cat-nodes]]
|
|
== cat nodes
|
|
|
|
The `nodes` command shows the cluster topology.
|
|
|
|
["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
|
|
also tells you what version of ES and the JVM each one runs.
|
|
|
|
["source","sh",subs="attributes,callouts"]
|
|
--------------------------------------------------
|
|
nodeId pid ip port version jdk
|
|
u2PZ 4234 192.168.56.30 9300 {version} {jdk}
|
|
URzf 5443 192.168.56.10 9300 {version} {jdk}
|
|
ActN 3806 192.168.56.20 9300 {version} {jdk}
|
|
--------------------------------------------------
|
|
|
|
|
|
The next few give a picture of your heap, memory, and load.
|
|
|
|
[source,shell]
|
|
--------------------------------------------------
|
|
diskAvail heapPercent heapMax ramPercent ramMax load
|
|
72.1gb 31.3 93.9mb 81 239.1mb 0.24
|
|
72.1gb 19.6 93.9mb 82 239.1mb 0.05
|
|
72.2gb 64.9 93.9mb 84 239.1mb 0.12
|
|
--------------------------------------------------
|
|
|
|
The last columns provide ancillary information that can often be
|
|
useful when looking at the cluster as a whole, particularly large
|
|
ones. How many master-eligible nodes do I have? How many client
|
|
nodes? It looks like someone restarted a node recently; which one was
|
|
it?
|
|
|
|
[source,shell]
|
|
--------------------------------------------------
|
|
uptime data/client master name
|
|
3.5h d m Boneyard
|
|
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","sh",subs="attributes,callouts"]
|
|
--------------------------------------------------
|
|
% 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 {version} m
|
|
k0zy 192.168.56.10 9300 {version} m
|
|
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} m
|
|
k0zy 192.168.56.10 9300 {version} m
|
|
6Tyi 192.168.56.20 9300 {version} *
|
|
--------------------------------------------------
|
|
|
|
[cols="<,<,<,<,<",options="header",subs="normal"]
|
|
|=======================================================================
|
|
|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 |{version}
|
|
|`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.current` |`hc`, `heapCurrent` |No |Used heap |311.2mb
|
|
|`heap.percent` |`hp`, `heapPercent` |Yes |Used heap percentage |7
|
|
|`heap.max` |`hm`, `heapMax` |No |Maximum configured heap |1015.6mb
|
|
|`ram.current` |`rc`, `ramCurrent` |No |Used total memory |513.4mb
|
|
|`ram.percent` |`rp`, `ramPercent` |Yes |Used total memory percentage |47
|
|
|`ram.max` |`rm`, `ramMax` |No |Total memory |2.9gb
|
|
|`file_desc.current` |`fdc`, `fileDescriptorCurrent` |No |Used file
|
|
descriptors |123
|
|
|`file_desc.percent` |`fdp`, `fileDescriptorPercent` |Yes |Used file
|
|
descriptors percentage |1
|
|
|`file_desc.max` |`fdm`, `fileDescriptorMax` |No |Maximum number of file
|
|
descriptors |1024
|
|
|`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
|
|
|`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
|
|
|`segments.index_writer_memory` |`siwm`, `segmentsIndexWriterMemory` |No
|
|
|Memory used by index writer |18mb
|
|
|`segments.index_writer_max_memory` |`siwmx`, `segmentsIndexWriterMaxMemory` |No
|
|
|Maximum memory index writer may use before it must write buffered documents to a new segment |32mb
|
|
|`segments.version_map_memory` |`svmm`, `segmentsVersionMapMemory` |No
|
|
|Memory used by version map |1.0kb
|
|
|=======================================================================
|