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use crate::{
backup_types::{
state_snapshot::restore::{StateSnapshotRestoreController, StateSnapshotRestoreOpt},
transaction::restore::TransactionRestoreBatchController,
},
metadata,
metadata::cache::MetadataCacheOpt,
storage::BackupStorage,
utils::{GlobalRestoreOptions, RestoreRunMode, TrustedWaypointOpt},
};
use anyhow::{ensure, Result};
use diem_logger::prelude::*;
use diem_types::transaction::Version;
use diemdb::backup::restore_handler::RestoreHandler;
use std::sync::Arc;
pub struct ReplayVerifyCoordinator {
storage: Arc<dyn BackupStorage>,
metadata_cache_opt: MetadataCacheOpt,
trusted_waypoints_opt: TrustedWaypointOpt,
concurrent_downloads: usize,
restore_handler: RestoreHandler,
start_version: Version,
end_version: Version,
}
impl ReplayVerifyCoordinator {
pub fn new(
storage: Arc<dyn BackupStorage>,
metadata_cache_opt: MetadataCacheOpt,
trusted_waypoints_opt: TrustedWaypointOpt,
concurrent_downloads: usize,
restore_handler: RestoreHandler,
start_version: Version,
end_version: Version,
) -> Result<Self> {
Ok(Self {
storage,
metadata_cache_opt,
trusted_waypoints_opt,
concurrent_downloads,
restore_handler,
start_version,
end_version,
})
}
pub async fn run(self) -> Result<()> {
info!("ReplayVerify coordinator started.");
let ret = self.run_impl().await;
if let Err(e) = &ret {
error!(
error = ?e,
"ReplayVerify coordinator failed."
);
} else {
info!("ReplayVerify coordinator exiting with success.");
}
ret
}
async fn run_impl(self) -> Result<()> {
let metadata_view = metadata::cache::sync_and_load(
&self.metadata_cache_opt,
Arc::clone(&self.storage),
self.concurrent_downloads,
)
.await?;
ensure!(
self.start_version <= self.end_version,
"start_version should precede end_version."
);
let state_snapshot = if self.start_version == 0 {
None
} else {
metadata_view.select_state_snapshot(self.start_version.wrapping_sub(1))?
};
let replay_transactions_from_version = state_snapshot
.as_ref()
.map(|b| b.version.wrapping_add(1))
.unwrap_or(0);
let transactions = metadata_view
.select_transaction_backups(replay_transactions_from_version, self.end_version)?;
let global_opt = GlobalRestoreOptions {
target_version: self.end_version,
trusted_waypoints: Arc::new(self.trusted_waypoints_opt.verify()?),
run_mode: Arc::new(RestoreRunMode::Restore {
restore_handler: self.restore_handler,
}),
concurrent_downloads: self.concurrent_downloads,
};
if let Some(backup) = state_snapshot {
StateSnapshotRestoreController::new(
StateSnapshotRestoreOpt {
manifest_handle: backup.manifest,
version: backup.version,
},
global_opt.clone(),
Arc::clone(&self.storage),
None, )
.run()
.await?;
}
let txn_manifests = transactions.into_iter().map(|b| b.manifest).collect();
TransactionRestoreBatchController::new(
global_opt,
self.storage,
txn_manifests,
Some(replay_transactions_from_version), None, )
.run()
.await?;
Ok(())
}
}