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[#2057] meta: Fix concurrent mode changes

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Includes:
1. mode change read lock operation in every exported method that r/w the
underlying database;
2. returning `ErrDegradedMode` logical error if any exported method is
called in degraded (without a metabase) mode.

Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
This commit is contained in:
Pavel Karpy 2022-11-15 15:46:32 +03:00 • committed by fyrchik
parent 3d6defd3e8
commit fdeea1dfac
16 changed files with 142 additions and 0 deletions
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7
pkg/local_object_storage/metabase/containers.go
View file

@ -42,6 +42,13 @@ func (db *DB) containers(tx *bbolt.Tx) ([]cid.ID, error) {
}
func (db *DB) ContainerSize(id cid.ID) (size uint64, err error) {
db.modeMtx.RLock()
defer db.modeMtx.RUnlock()
if db.mode.NoMetabase() {
return 0, ErrDegradedMode
}
err = db.boltDB.View(func(tx *bbolt.Tx) error {
size, err = db.containerSize(tx, id)