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84 lines
2.8 KiB
Plaintext
84 lines
2.8 KiB
Plaintext
mtredisalize
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A simple server that offers a TCP/Redis interface for LevelDB and SQLite3 based
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Minetest worlds.
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Disclaimer:
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!!! This software is very young and not well tested! Use at your own risk.
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!!! If you want to try it out backup your original databases, please!
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Motivation:
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The Redis backend is nice if you want to do use the backend for other
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purposes than backing the Minetest server at the same time, e.g. do
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some mapping. On the other hand Redis is - by its nature as an in-memory
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database - quiet a memory hungry beast. This is fine if you have smaller
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worlds or a lot of hardware to throw on it.
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The other two backends (SQLite3 and LevelDB) are embedded database
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which are hard to work with if you want to access them from another
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process.
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The idea of mtredisalize is to wrap a server around the embedded databases
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and offer a TCP Redis interface a Minetest server and other
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processes can connect with.
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Beware! This is _not_ a fully featured Redis server with all of its commands.
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Only the subset of Redis commands is implemented which is needed to run Minetest
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on top of it.
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To build mtredisalize a Go 1.x (x >= 1) environment is needed. By now
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it is only tested on Ubuntu 14.04/amd64.
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Obtain:
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$ go get bitbucket.org/s_l_teichmann/mtredisalize/cmd/mtredisalize
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Development:
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$ go get -u github.com/mattn/go-sqlite3
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$ go install github.com/mattn/go-sqlite3
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$ go get -u github.com/jmhodges/levigo
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$ go install github.com/jmhodges/levigo
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$ hg clone https://s_l_teichmann@bitbucket.org/s_l_teichmann/mtredisalize
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$ cd mtredisalize/cmd/mtredisalize
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$ go build
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Usage:
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$ mtredisalize [<options>] /path/to/database
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with options:
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-cache=32: cache size in MB # Cache size for LevelDB
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-driver="leveldb": type of database (leveldb, sqlite)
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-host="": host to bind
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-gc-duration="24h": Duration between forced GCs.
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-port=6379: port to bind
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-version=false: Print version and exit.
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To use mtredisalize with your particular world you have to modify the
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world.mt of the world.
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You have to set the backend to redis and redis_address, the redis_port and the
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redis_hash to match the start options of mtredisalize. The hash is ignored by
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mtredisalize but has to be in the world.mt to make Minetest happy.
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redis_port defaults to 6379.
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gameid = minetest
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backend = redis
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redis_address = localhost
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redis_port = 6380
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redis_hash = IGNORED
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would e.g. matches:
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$ mtredisalize --port=6380 --host=localhost ..
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The mandatory path is the path to the database file: map.sqlite in case
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of SQLite3 and the directory map.db in case of LevelDB right beside the world.mt file.
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This is Free Software under the terms of the MIT license. See LICENSE file for details.
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(c) 2014 by Sascha L. Teichmann
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