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## Problem The communicator gRPC client must support changing the shard map on splits. Touches #11735. Requires #12476. ## Summary of changes * Wrap the shard set in a `ArcSwap` to allow swapping it out. * Add a new `ShardSpec` parameter struct to pass validated shard info to the client. * Add `update_shards()` to change the shard set. In-flight requests are allowed to complete using the old shards. * Restructure `get_page` to use a stable view of the shard map, and retry errors at the top (pre-split) level to pick up shard map changes. * Also marks `tonic::Status::Internal` as non-retryable, so that we can use it for client-side invariant checks without continually retrying these.
7 lines
92 B
Rust
7 lines
92 B
Rust
mod client;
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mod pool;
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mod retry;
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mod split;
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pub use client::{PageserverClient, ShardSpec};
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