zhenyi
8f472a0443
- Integrate etcd-client for distributed coordination and leader election - Add remote client macros with proper formatting for all services - Implement RequestMetrics for tracking RPC performance and errors - Add rate limiting mechanism across all service endpoints - Create ElectionRequest and ElectionResult message types for leader election - Add role management with primary/replica switching capabilities - Implement health checker with automatic failover detection - Add repository count metrics for cluster monitoring - Update Cargo.toml with etcd-client and dashmap dependencies - Modify RepoEntry to include read_only flag for replica handling - Implement should_accept_election logic to prevent duplicate elections - Add RoleChangedEvent handling for cluster role updates
91 lines
3.6 KiB
Rust
91 lines
3.6 KiB
Rust
use crate::pb::archive_service_client::ArchiveServiceClient;
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use crate::pb::*;
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use super::{GitksService, cache, into_status};
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remote_client!(
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remote_archive_client,
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ArchiveServiceClient<tonic::transport::Channel>,
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"archive"
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);
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#[tonic::async_trait]
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impl archive_service_server::ArchiveService for GitksService {
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type GetArchiveStream =
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tokio_stream::wrappers::ReceiverStream<Result<ArchiveChunk, tonic::Status>>;
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async fn get_archive(
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&self,
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request: tonic::Request<ArchiveRequest>,
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) -> Result<tonic::Response<Self::GetArchiveStream>, tonic::Status> {
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let m = crate::metrics::RequestMetrics::new("gitks.ArchiveService/GetArchive");
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let inner = request.into_inner();
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let _rate = self.acquire_rate_limit(inner.repository.as_ref()).await?;
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let repo = self.repo_label(inner.repository.as_ref());
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let span = tracing::info_span!("archive.get_archive", %repo);
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let _enter = span.enter();
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let gb = match self.resolve(inner.repository.as_ref()) {
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Ok(gb) => gb,
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Err(err) if err.code() == tonic::Code::NotFound => {
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if let Some(mut client) =
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remote_archive_client(self, inner.repository.as_ref(), false).await?
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{
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m.record("ok");
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let resp = client.get_archive(inner).await?;
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let stream = super::bridge_server_stream(resp.into_inner());
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return Ok(tonic::Response::new(stream));
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}
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crate::metrics::record_rpc_error(&m, &err);
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return Err(err);
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}
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Err(err) => {
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crate::metrics::record_rpc_error(&m, &err);
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return Err(err);
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}
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};
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let stream = gb.get_archive_stream(inner)?;
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tracing::info!(%repo, "archive streaming started");
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m.record("ok");
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Ok(tonic::Response::new(stream))
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}
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async fn list_archive_entries(
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&self,
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request: tonic::Request<ListArchiveEntriesRequest>,
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) -> Result<tonic::Response<ListArchiveEntriesResponse>, tonic::Status> {
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let m = crate::metrics::RequestMetrics::new("gitks.ArchiveService/ListArchiveEntries");
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let inner = request.into_inner();
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let _rate = self.acquire_rate_limit(inner.repository.as_ref()).await?;
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let repo = self.repo_label(inner.repository.as_ref());
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let span = tracing::info_span!("archive.list_archive_entries", %repo);
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let _enter = span.enter();
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let gb = match self.resolve(inner.repository.as_ref()) {
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Ok(gb) => gb,
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Err(err) if err.code() == tonic::Code::NotFound => {
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if let Some(mut client) =
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remote_archive_client(self, inner.repository.as_ref(), false).await?
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{
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m.record("ok");
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return client.list_archive_entries(inner).await;
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}
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crate::metrics::record_rpc_error(&m, &err);
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return Err(err);
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}
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Err(err) => {
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crate::metrics::record_rpc_error(&m, &err);
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return Err(err);
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}
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};
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let resp = if cache::selector_is_oid(&inner.treeish) {
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cache::cached_response("archive.list_archive_entries", &inner, || {
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gb.list_archive_entries(inner.clone()).map_err(into_status)
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})?
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} else {
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gb.list_archive_entries(inner).map_err(into_status)?
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};
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tracing::info!(%repo, count = resp.entries.len(), "list_archive_entries done");
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m.record("ok");
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Ok(tonic::Response::new(resp))
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}
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}
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