fix(sensor): getParentBlock short circuit (#762)

Author: minhd-vu

p2p/database/json.go

@@ -333,7 +333,7 @@ func (j *JSONDatabase) WritePeers(ctx context.Context, peers []*p2p.Peer, tls ti
 
 // HasBlock always returns true to avoid unnecessary parent block fetching for JSON output.
 func (j *JSONDatabase) HasBlock(ctx context.Context, hash common.Hash) bool {
-	return true
+	return false
 }
 
 // MaxConcurrentWrites returns the max concurrency.

p2p/protocol.go

@@ -328,7 +328,7 @@ func (c *conn) getBlockData(hash common.Hash, cache BlockCache, isParent bool) e
 // getParentBlock will send a request to the peer if the parent of the header
 // does not exist in the database.
 func (c *conn) getParentBlock(ctx context.Context, header *types.Header) error {
-	if !c.db.ShouldWriteBlocks() || !c.db.ShouldWriteBlockEvents() {
+	if !c.db.ShouldWriteBlocks() {
 		return nil
 	}