LevelDB is a high-performance NoSQL key/value database developed by Google Corporation.
Requirements
- CentOS 5/6/7;
- Python 2.7 and above;
- gcc-c++;
- Snappy.
Installation
Install the archiving utility:
yum install leveldb snappy
We installed LevelDB with this command, now we need to test its performance. For this we need Python-pip.
Install Python-pip:
yum install python-devel python-pip gcc-c++
Install the interface for interacting with LevelDB:
pip install leveldb-cli
Now let’s check. Let’s create a new database:
leveldb create -d newdb.db
Insert the hello key into it with the world value:
leveldb put hello centos -d newdb.db
Get value hello:
leveldb get hello -d newdb.db
centos
Remove the hello key:
leveldb delete hello -d newdb.db
Let’s try to get the hello key:
leveldb get hello -d newdb.db
Error: key hello does not exist
In general, it looks like this:
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