reduce buffer pool size

model/cache_pool.go

@@ -15,7 +15,7 @@ type sliceBufferPool struct {
 
 func NewSliceBufferPool(name string, bufferSize int) (sbp *sliceBufferPool) {
 	return &sliceBufferPool{
-		queue: make(chan []byte, 512),
+		queue: make(chan []byte, 256),
 		bufferSize: bufferSize,
 		name: name,
 	}

model/query_piece.go

@@ -34,7 +34,7 @@ const (
 
 var (
 	mqpp                 = NewMysqlQueryPiecePool()
-	localSliceBufferPool = NewSliceBufferPool("json cache", 2*1024*1024)
+	localSliceBufferPool = NewSliceBufferPool("json cache", 1*1024*1024)
 )
 
 var commonBaseQueryPiece = &BaseQueryPiece{}

session-dealer/mysql/const.go

@@ -96,7 +96,7 @@ const (
 // See https://dev.mysql.com/doc/refman/5.7/en/identifiers.html
 const (
 	// MaxMysqlPacketLen is the max packet payload length.
-	MaxMysqlPacketLen = 1 * 1024 * 1024
+	MaxMysqlPacketLen = 512 * 1024
 )
 
 const (