forked from Deuxfleurs/garage
33 lines
987 B
Rust
33 lines
987 B
Rust
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mod history;
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mod schema;
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mod tracker;
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mod version;
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pub use history::*;
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pub use schema::*;
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pub use version::*;
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// ---- defines: partitions ----
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/// A partition id, which is stored on 16 bits
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/// i.e. we have up to 2**16 partitions.
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/// (in practice we have exactly 2**PARTITION_BITS partitions)
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pub type Partition = u16;
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// TODO: make this constant parametrizable in the config file
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// For deployments with many nodes it might make sense to bump
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// it up to 10.
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// Maximum value : 16
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/// How many bits from the hash are used to make partitions. Higher numbers means more fairness in
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/// presence of numerous nodes, but exponentially bigger ring. Max 16
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pub const PARTITION_BITS: usize = 8;
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const NB_PARTITIONS: usize = 1usize << PARTITION_BITS;
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// ---- defines: nodes ----
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// Type to store compactly the id of a node in the system
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// Change this to u16 the day we want to have more than 256 nodes in a cluster
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pub type CompactNodeType = u8;
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pub const MAX_NODE_NUMBER: usize = 256;
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