'How can I add extra disk space to my elasticsearch nodes

The set up is 3 nodes, two warm nodes with 5TBs of storage and a hot node with 2TB. I want to add 2TBs of storage to each of the two nodes.

Each node is run as a docker image on a Linux server which will be shutdown while adding the disks. I do not know how to make elasticsearch utilize the extra space after adding the disks.

No docker-compose files are used.

The elastic image is started without specifying volumes, but only specifies the elasticsearch yaml file. The elasticsearch file does not mention anything about the path properties.

linuxdocker


Solution 1:[1]

You can use multiple data path, editing the yaml configuration file:

path:
  data:
    - /mnt/disk_1
    - /mnt/disk_2
    - /mnt/disk_3

In recent ElasticSearch versions, this option is deprecated.
See official documentation to migrate to an alternative configuration.

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Marco Caberletti

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