frostfs-node/pkg/local_object_storage/shard/writecache.go
Evgenii Stratonikov b0e94b6a6b [] writecache: Do not require read-only mode in Flush
It was needed before we started to flush during transition to
`degraded` mode. Now it is confusing.

Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-11-19 11:01:04 +03:00

39 lines
972 B
Go

package shard
import (
"errors"
)
// FlushWriteCachePrm represents parameters of a `FlushWriteCache` operation.
type FlushWriteCachePrm struct {
ignoreErrors bool
}
// SetIgnoreErrors sets the flag to ignore read-errors during flush.
func (p *FlushWriteCachePrm) SetIgnoreErrors(ignore bool) {
p.ignoreErrors = ignore
}
// errWriteCacheDisabled is returned when an operation on write-cache is performed,
// but write-cache is disabled.
var errWriteCacheDisabled = errors.New("write-cache is disabled")
// FlushWriteCache flushes all data from the write-cache.
func (s *Shard) FlushWriteCache(p FlushWriteCachePrm) error {
if !s.hasWriteCache() {
return errWriteCacheDisabled
}
s.m.RLock()
defer s.m.RUnlock()
// To write data to the blobstor we need to write to the blobstor and the metabase.
if s.info.Mode.ReadOnly() {
return ErrReadOnlyMode
}
if s.info.Mode.NoMetabase() {
return ErrDegradedMode
}
return s.writeCache.Flush(p.ignoreErrors)
}