A python command line tool to provide the commands necessary to run on citus to have a balanced cluster
# python-citus-rebalancer A python command to get recommendations on commands to run to rebalance an unbalaned citus cluster.
Sometimes when your cluster grows, you can have an uneven size on nodes: for example if one customers ingests more data than other. This simple commands helps you figure out what master_move_shard commands to run on your coordinator.
## Installation ### Install with pip install
### Install from source code
Clone the github repository
Run python setup.py develop
## Running the command
This command has different options:
–host: is your postgres connection string
–delta: is the maximum difference you expect between the node size and the idea size. For example if you have 4 nodes and 20GB of data, the idea size would be 5GB per node. The delta that you can give is for example 10% difference. It’s an integer representing the percent.
Run the command citus-rebalancer –host=postgres://user:pwd@host:5432/dbname –delta=10
It will return commands to run, run them on your coordinator to rebalance the cluster.
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