46 lines
1.8 KiB
Plaintext
46 lines
1.8 KiB
Plaintext
[[setup-dir-layout]]
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== Directory Layout
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The directory layout of an installation is as follows:
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[cols="<,<,<,<",options="header",]
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|=======================================================================
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|Type |Description |Default Location |Setting
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|*home* |Home of elasticsearch installation | | `path.home`
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|*bin* |Binary scripts including `elasticsearch` to start a node | `{path.home}/bin` |
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|*conf* |Configuration files including `elasticsearch.yml` |`{path.home}/config` |`path.conf`
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|*data* |The location of the data files of each index / shard allocated
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on the node. Can hold multiple locations. |`{path.home}/data`|`path.data`
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|*work* |Temporal files that are used by different nodes. |`{path.home}/work` |`path.work`
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|*logs* |Log files location |`{path.home}/logs` |`path.logs`
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|=======================================================================
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The multiple data locations allows to stripe it. The striping is simple,
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placing whole files in one of the locations, and deciding where to place
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the file based on the value of the `index.store.distributor` setting:
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* `least_used` (default) always selects the directory with the most
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available space +
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* `random` selects directories at random. The probability of selecting
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a particular directory is proportional to amount of available space in
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this directory.
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Note, there are no multiple copies of the same data, in that, its
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similar to RAID 0. Though simple, it should provide a good solution for
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people that don't want to mess with RAID. Here is how it is configured:
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---------------------------------
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path.data: /mnt/first,/mnt/second
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---------------------------------
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Or the in an array format:
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----------------------------------------
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path.data: ["/mnt/first", "/mnt/second"]
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----------------------------------------
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