From bd5fcbdcdea686388a5bf29f82a3f26b0e7603c8 Mon Sep 17 00:00:00 2001
From: Tuna <ng.tuna@gmail.com>
Date: Mon, 10 Dec 2018 17:14:49 +0700
Subject: [PATCH] tiny make up

---
 consensus/posv/posv.go | 2 +-
 core/blockchain.go     | 6 +++---
 core/error.go          | 2 +-
 eth/backend.go         | 2 +-
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/consensus/posv/posv.go b/consensus/posv/posv.go
index a36eea9150..e2916b2a5a 100644
--- a/consensus/posv/posv.go
+++ b/consensus/posv/posv.go
@@ -485,7 +485,7 @@ func (c *Posv) YourTurn(chain consensus.ChainReader, parent *types.Header, signe
 		return 0, -1, -1, false, err
 	}
 	if len(masternodes) == 0 {
-		return 0, -1, -1, false, errors.New("Not found master nodes")
+		return 0, -1, -1, false, errors.New("Masternodes not found")
 	}
 	pre := common.Address{}
 	// masternode[0] has chance to create block 1
diff --git a/core/blockchain.go b/core/blockchain.go
index 9d1fbfff64..e68f0bdedd 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -127,9 +127,9 @@ type BlockChain struct {
 	bodyRLPCache     *lru.Cache     // Cache for the most recent block bodies in RLP encoded format
 	blockCache       *lru.Cache     // Cache for the most recent entire blocks
 	futureBlocks     *lru.Cache     // future blocks are blocks added for later processing
-	resultProcess    *lru.Cache
-	calculatingBlock *lru.Cache
-	downloadingBlock *lru.Cache
+	resultProcess    *lru.Cache		// Cache for processed blocks
+	calculatingBlock *lru.Cache		// Cache for processing blocks
+	downloadingBlock *lru.Cache		// Cache for downloading blocks (avoid duplication from fetcher)
 	quit             chan struct{} // blockchain quit channel
 	running          int32         // running must be called atomically
 	// procInterrupt must be atomically called
diff --git a/core/error.go b/core/error.go
index 4af0d2922a..63be6ab83d 100644
--- a/core/error.go
+++ b/core/error.go
@@ -37,5 +37,5 @@ var (
 
 	ErrNotFoundM1 = errors.New("list M1 not found ")
 
-	ErrStopPreparingBlock = errors.New("stop calculate a block not vrified M2")
+	ErrStopPreparingBlock = errors.New("stop calculating a block not verified by M2")
 )
diff --git a/eth/backend.go b/eth/backend.go
index ed11a8cae7..aba5539dd2 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -358,7 +358,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 			currentHeader := eth.blockchain.CurrentHeader()
 			snap, err := c.GetSnapshot(eth.blockchain, currentHeader)
 			if err != nil {
-				log.Error("Can't get snap shot with current header ", "number", currentHeader.Number, "hash", currentHeader.Hash().Hex())
+				log.Error("Can't get snapshot with current header ", "number", currentHeader.Number, "hash", currentHeader.Hash().Hex())
 				return false
 			}
 			if _, ok := snap.Signers[address]; ok {