Struct mz_storage::storage_state::StorageInstanceContext

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pub struct StorageInstanceContext {
    pub scratch_directory: Option<PathBuf>,
    pub rocksdb_env: Env,
    pub cluster_memory_limit: Option<usize>,
}
Expand description

Extra context for a storage instance. This is extra information that is used when rendering source and sinks that is not tied to the source/connection configuration itself.

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§scratch_directory: Option<PathBuf>

A directory that can be used for scratch work.

§rocksdb_env: Env

A global rocksdb::Env, shared across ALL instances of RocksDB (even across sources!). This Env lets us control some resources (like background threads) process-wide.

§cluster_memory_limit: Option<usize>

The memory limit of the materialize cluster replica. This will be used to calculate and configure the maximum inflight bytes for backpressure

Implementations§

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impl StorageInstanceContext

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pub fn new( scratch_directory: Option<PathBuf>, cluster_memory_limit: Option<usize> ) -> Result<Self, Error>

Build a new StorageInstanceContext.

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pub fn for_tests(rocksdb_env: Env) -> Self

Constructs a new connection context for usage in tests.

Trait Implementations§

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impl Clone for StorageInstanceContext

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fn clone(&self) -> StorageInstanceContext

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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