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beacon_node/beacon_chain/src/schema_change/migration_schema_v19.rs
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use crate::beacon_chain::BeaconChainTypes; | ||
use slog::{debug, info, Logger}; | ||
use std::sync::Arc; | ||
use store::{get_key_for_col, DBColumn, Error, HotColdDB, KeyValueStore, KeyValueStoreOp}; | ||
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pub fn upgrade_to_v19<T: BeaconChainTypes>( | ||
db: Arc<HotColdDB<T::EthSpec, T::HotStore, T::ColdStore>>, | ||
log: Logger, | ||
) -> Result<Vec<KeyValueStoreOp>, Error> { | ||
let mut hot_delete_ops = vec![]; | ||
let mut blob_keys = vec![]; | ||
let column = DBColumn::BeaconBlob; | ||
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debug!(log, "Migrating from v18 to v19"); | ||
// Iterate throught the blobs on disk. | ||
for res in db.hot_db.iter_column_keys::<Vec<u8>>(column) { | ||
let key = res?; | ||
let key_col = get_key_for_col(column.as_str(), &key); | ||
hot_delete_ops.push(KeyValueStoreOp::DeleteKey(key_col)); | ||
blob_keys.push(key); | ||
} | ||
let num_blobs = blob_keys.len(); | ||
debug!(log, "Collected {} blob lists to migrate", num_blobs); | ||
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for key in blob_keys { | ||
let next_blob = db.hot_db.get_bytes(column.as_str(), &key)?; | ||
if let Some(next_blob) = next_blob { | ||
let key_col = get_key_for_col(column.as_str(), &key); | ||
db.blobs_db | ||
.do_atomically(vec![KeyValueStoreOp::PutKeyValue(key_col, next_blob)])?; | ||
} | ||
} | ||
debug!(log, "Wrote {} blobs to the blobs db", num_blobs); | ||
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// Delete all the blobs | ||
info!( | ||
log, | ||
"Upgrading to v19 schema"; | ||
"info" => "ready for Deneb once it is scheduled" | ||
); | ||
Ok(hot_delete_ops) | ||
} | ||
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pub fn downgrade_from_v19<T: BeaconChainTypes>( | ||
_db: Arc<HotColdDB<T::EthSpec, T::HotStore, T::ColdStore>>, | ||
log: Logger, | ||
) -> Result<Vec<KeyValueStoreOp>, Error> { | ||
// No-op | ||
info!( | ||
log, | ||
"Downgrading to v18 schema"; | ||
); | ||
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Ok(vec![]) | ||
} |