_cat/indices data

so i'd like to start visualize some of the data from the _cat apis like indices, volume and replicas, etc.

tried to see if i could scrape the info from .monitoring-es but no dice, is the data from the api somewhere we can pull it from?

hey,

how about using the metricbeat elasticsearch module for this, so you do not have any hassle of parsing things manually?

tried it and it gave me some good stats but it seems like the module doesn't do index and index_summary on 6.2 cluster so i'm gonna have to scrape that from somewhere else.

which internal index may contain the index and store size data im looking for?

You could try the _cat/indices API, it gives you all the indices with store size, primary store size, docs count and docs deleted count.

For instance, this will return all the indices sorted by name with column headers explaining what each column represents:

curl -XGET 'http://localhost:9200/_cat/indices?v&s=index'
health status index                           uuid                   pri rep docs.count docs.deleted store.size pri.store.size
green  open   .kibana-6                       x4RoWEFISwO_5Kwk5Ip8hw   1   1          5            1    106.9kb         53.4kb
green  open   .kibana_1                       EC-zsVoLQBi6dNTwWDuJeg   1   1          4            0     46.5kb         23.2kb
green  open   .kibana_7                       Qci1vY8nTMacksaVpJSgSg   1   1          8            0     57.3kb         28.6kb
green  open   .monitoring-es-6-2019.08.07     wcvM-3KvR8KDujQV5Y7Wwg   1   1     503096         4048    925.9mb        459.8mb
green  open   .monitoring-es-6-2019.08.08     Dv-MkmD9QPSr1JW5FVhjkA   1   1     503090         4948    940.5mb        468.5mb
green  open   .monitoring-es-6-2019.08.09     qBAAVWc4TS-H8v1Ao3ClUg   1   1     502648         4418    925.1mb        467.5mb
green  open   .monitoring-es-6-2019.08.10     drYDRgmGRp6OqaVTc1cdyw   1   1     502158         4496    929.4mb        461.3mb

It should be straight forward to parse this output either in a script or on command line using grep and awk. The following piped commands return the store.size for the indices created on Aug 14:

curl -XGET 'http://localhost:9200/_cat/indices?v&s=index' -s | grep 2019.08.14 | awk '{print $3" has store.size: "$9}'   
.monitoring-es-6-2019.08.14 has store.size: 717.9mb
.monitoring-kibana-6-2019.08.14 has store.size: 3.4mb

right, im aware of the cat api results but having a script to hit the api and then reingest it into the cluster seems redundant, if the api has the data it must be somewhere already which is what im trying to get so i can start doing some visualizations, im mostly looking into displaying a graph of indices sizes so i can see volume peaks and trends.

Sorry, didn't see the title of this thread, just read the posts. From them it seems you should be able to use _cat/indices to obtain store sizes for each index.

Oh, I get your point.

I don't know if there is a single index you can query for this. I have only used the _cat/indices myself. Sorry.