ElasticSearch 查找磁盘空间使用情况

如何找到弹性搜索用于索引的磁盘空间量？我目前正在本地运行它，我试图看看有多少磁盘空间，我需要在虚拟机上，我将旋转。

130149 次浏览
小开
最佳答案

The Elasticsearch way to do this would be to use _cat/shards and look at the store column:

curl -XGET "http://localhost:9200/_cat/shards?v"


index              shard prirep state     docs   store ip            node
myindex_2014_12_19 2     r      STARTED  76661 415.6mb 192.168.1.1 Georgianna Castleberry
myindex_2014_12_19 2     p      STARTED  76661 417.3mb 192.168.1.2 Frederick Slade
myindex_2014_12_19 2     r      STARTED  76661 416.9mb 192.168.1.3 Maverick
myindex_2014_12_19 0     r      STARTED  76984 525.9mb 192.168.1.1 Georgianna Castleberry
myindex_2014_12_19 0     r      STARTED  76984   527mb 192.168.1.2 Frederick Slade
myindex_2014_12_19 0     p      STARTED  76984   526mb 192.168.1.3 Maverick
myindex_2014_12_19 3     r      STARTED    163 208.5kb 192.168.1.1 Georgianna Castleberry
myindex_2014_12_19 3     p      STARTED    163 191.4kb 192.168.1.2 Frederick Slade
myindex_2014_12_19 3     r      STARTED    163 181.6kb 192.168.1.3 Maverick
myindex_2014_12_19 1     p      STARTED 424923   2.1gb 192.168.1.1 Georgianna Castleberry
myindex_2014_12_19 1     r      STARTED 424923   2.1gb 192.168.1.2 Frederick Slade
myindex_2014_12_19 1     r      STARTED 424923   2.1gb 192.168.1.3 Maverick
myindex_2014_12_19 4     r      STARTED  81020 435.9mb 192.168.1.1 Georgianna Castleberry
myindex_2014_12_19 4     p      STARTED  81020 437.8mb 192.168.1.2 Frederick Slade
myindex_2014_12_19 4     r      STARTED  81020 437.8mb 192.168.1.3 Maverick

Otherwise in Linux to view the space by folder use:

du -hs /myelasticsearch/data/folder

or to view the space by filesystem:

df -h
小开

you can use the nodes stats rest API
see: https://www.elastic.co/guide/en/elasticsearch/reference/1.6/cluster-nodes-stats.html

make a request for the fs stats like so: http://:9200/_nodes/stats/fs?pretty=1

and you will see:

{
"cluster_name" : "<cluster>",
"nodes" : {
"pEO34wutR7qk3Ix8N7MgyA" : {
"timestamp" : 1438880525206,
"name" : "<name>",
"transport_address" : "inet[/10.128.37.111:9300]",
"host" : "<host>",
"ip" : [ "inet[/10.128.37.111:9300]", "NONE" ],
"fs" : {
"timestamp" : 1438880525206,
"total" : {
"total_in_bytes" : 363667091456,
"free_in_bytes" : 185081352192,
"available_in_bytes" : 166608117760,
"disk_reads" : 154891,
"disk_writes" : 482628039,
"disk_io_op" : 482782930,
"disk_read_size_in_bytes" : 6070391808,
"disk_write_size_in_bytes" : 1989713248256,
"disk_io_size_in_bytes" : 1995783640064,
"disk_queue" : "0",
"disk_service_time" : "0"
},
"data" : [ {
"path" : "/data1/elasticsearch/data/<cluster>/nodes/0",
"mount" : "/data1",
"dev" : "/dev/sda4",
"total_in_bytes" : 363667091456,
"free_in_bytes" : 185081352192,
"available_in_bytes" : 166608117760,
"disk_reads" : 154891,
"disk_writes" : 482628039,
"disk_io_op" : 482782930,
"disk_read_size_in_bytes" : 6070391808,
"disk_write_size_in_bytes" : 1989713248256,
"disk_io_size_in_bytes" : 1995783640064,
"disk_queue" : "0",
"disk_service_time" : "0"
} ]
}
}
}
}

the space for the data drive is listed:

"total" : {
"total_in_bytes" : 363667091456,
"free_in_bytes" : 185081352192,
"available_in_bytes" : 166608117760,
小开

You may want to use the _cat api for nodewise disk space usage 

curl http://host:9200/_cat/nodes?h=h,diskAvail

Reference : https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-nodes.html

小开

In case you don't need per-shard statistics returned by /_cat/shards you can use

curl -XGET 'http://localhost:9200/_cat/allocation?v'

to get used and available disk space for each node.

小开

A more concise solution to find the size of indices is to use

curl -XGET 'localhost:9200/_cat/indices?v'

The output has a 'store.size' column that tells you exactly the size of an index.

health status index                           uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   logstash-2017.03.01             TfraFM8TQkSXdxjx13CnpQ   5   1   33330000            0        1gb            1gb
yellow open   .monitoring-es-2-2017.03.02     10YscrcfQuGny5wMxeb0TA   1   1      68834           88     30.3mb         30.3mb
yellow open   .kibana                         GE6xXV7QT-mNbX7xTPbZ4Q   1   1          3            0     14.5kb         14.5kb
yellow open   .monitoring-es-2-2017.03.01     SPeQNnPlRB6y7G6w1Axokw   1   1      29441          108     14.7mb         14.7mb
yellow open   .monitoring-data-2              LLeWqsD-QE-rPFblwu5K_Q   1   1          3            0      6.9kb          6.9kb
yellow open   .monitoring-kibana-2-2017.03.02 l_MAPERUTmSbq0xbhpnf2Q   1   1       5320            0      1.1mb          1.1mb
yellow open   .monitoring-kibana-2-2017.03.01 UFVg9c7TTA-nbsEd2d4oFw   1   1       2699            0    763.4kb        763.4kb

In addition you can find out about available disk space by using

curl -XGET 'localhost:9200/_nodes/_local/stats/fs'

Look up the disk space information under the 'fs' key

{
"_nodes": {
"total": 1,
"successful": 1,
"failed": 0
},
"cluster_name": "elasticsearch",
"nodes": {
"MfgVaoRQT9iRAZtAvO549Q": {
"fs": {
"timestamp": 1488466297268,
"total": {
"total_in_bytes": 29475753984,
"free_in_bytes": 18352095232,
"available_in_bytes": 18352095232
},
}
}
}
}

I've tested this for ElasticSearch version 5.2.1

小开

Or you may also query disk directly to measure disk space for each directories under /var/lib/elasticsearch/[environment name]/nodes/0/indices on Elasticsearch nodes.

$ du -b --max-depth=1 /var/lib/elasticsearch/[environment name]/nodes/0/indices \
| sort -rn | numfmt --to=iec --suffix=B --padding=5
> 17GB /var/lib/elasticsearch/env1/nodes/0/indices
3.8GB /var/lib/elasticsearch/env1/nodes/0/indices/index1
2.1GB /var/lib/elasticsearch/env1/nodes/0/indices/index2
1.2GB ...
小开

To view the overall disk usage/available space on ES cluster you can use the following command:

curl -XGET 'localhost:9200/_cat/allocation?v&pretty'

Hope this helps.

小开

RUN BELOW TO COMMAND TO FIND OUT DISK SPACE USED BY EACH ELASTICSEARCH INDEXING

# FOR SHARDS
curl http://host:9200/_cat/shards?v&pretty
# OR
GET _cat/shards?v&pretty

RUN BELOW TO COMMAND TO FIND OUT DISK SPACE USED BY EACH ELASTICSEARCH INDICES

# FOR INDICES
curl -XGET 'host:9200/_cat/indices?v&pretty


# SORT BY SIZE STORE OF INDICES
curl -XGET 'host:9200/_cat/indices/_all?v&s=store.size

OUTPUT

# GET /_cat/indices/_all?v&s=store.size
health status index                      uuid                   pri rep docs.count docs.deleted store.size pri.store.size
yellow open   sync-rails-logs            sSIBqr2iQHG8TGeKFozTpQ   5   1          0            0      1.2kb          1.2kb
yellow open   web-nginx-logs             iTV-xFFBSdy-C2-NTuEwqQ   5   1          0            0      1.2kb          1.2kb
yellow open   web-rails-logs             BYD_qHS8SguZvBuGpNvCwA   5   1          0            0      1.2kb          1.2kb
yellow open   sync-nginx-logs            XAI1hsxlT6qBYN4Ql36lbg   5   1          0            0      1.2kb          1.2kb
green  open   .tasks                     XGrMZiqCR0Wr33cCG1u0VQ   1   0          1            0      6.2kb          6.2kb
green  open   .kibana_1                  -g0ztoGWQnuOXnP6di7OYQ   1   0         13            0    100.6kb        100.6kb
green  open   .kibana_2                  eAxt-LXbQyybCyp_6ZYNZg   1   0         14            5    432.2kb        432.2kb
green  open   sync-nginx-logs-2019-09-13 Q_Ki0dvXQEiuqiGCd10hRg   1   0     144821            0     28.8mb         28.8mb
green  open   sync-nginx-logs-2019-08-31 m7-oi7ZTSM6ZH_wPDWwbdw   1   0     384954            0     76.4mb         76.4mb
yellow open   sync-nginx-logs-2019-08-26 gAvOPNhMRZK6fjAazpzPQQ   5   1     354260            0     76.5mb         76.5mb
green  open   sync-nginx-logs-2019-09-01 vvgysMB_SqGDFegF6_wOEQ   1   0     400248            0     79.5mb         79.5mb
green  open   sync-nginx-logs-2019-09-02 8yHv66FuTE6A8L5GgnEl3g   1   0     416184            0     84.8mb         84.8mb
green  open   sync-nginx-logs-2019-09-07 iZCX1A3fRMaglOCHFLaFsA   1   0     436122            0     86.7mb         86.7mb
green  open   sync-nginx-logs-2019-09-08 4Y9rA_1cSlGJ9KADmickQQ   1   0     446164            0     88.3mb         88.3mb

enter image description here

RUN BELOW TO COMMAND TO FIND OUT OVERALL DISK SPACE USED BY ALL ELASTICSEARCH INDICES


GET _cat/nodes?h=h,diskAvail
OR
curl http://host:9200/_cat/nodes?h=h,diskAvail

OUTPUT:- 

148.3gb

enter image description here


提交答案