Merge pull request #185 from joyieldInc/fix/issue124

avoid to use leader's connection for follow request

doc/ReleaseNotes.md

@@ -1,31 +0,0 @@
-# 7.0.1
-
-+ Add new config IgnoreArgNumCheck, use to ignore argument number check in Predixy
-+ Improve the performance for relaod license
-+ Fix the rewrite error response
-
-# 7.0.0
-
-+ Support new command for Redis 6.x and 7.x, list below:
-+ Function: all Function serial commands
-+ Script: eval_ro; improve script implement
-+ Set: sintercard smismember
-+ Zset: bzmpop zdiff zdiffstore zinter zintercard zmpop zmscore zrandmember
-zrangestore zunion
-+ List: lmove lmpop lpos
-+ Geo: georadius_ro georadiusbymember_ro geosearch geosearchstore
-+ Other: reset expiretime pexiretime sort_ro bitfield_ro getdel getex
-lcs substr hrandfield
-+ PubSub: supports Shard PubSub; refactor all PubSub codes for Predixy, now 
-Predixy can support Redis PubSub fully.
-
-# 5.2.0
-
-+ Supports domain in config for discover redis nodes
-+ Auto remove the redis node if it's not stay in the Redis Cluster
-+ Improve the deploy for exporter
-+ Require license to running
-+ Improve the compatibility for client within Redis Cluster
-+ Disable some redis commands in config
-+ PINFO reply the arch information
-+ WorkerThreads: the config field can auto detect the CPU cores

src/Request.cpp

@@ -103,6 +103,7 @@ Request::~Request()
 
 void Request::clear()
 {
+    mConn = nullptr;
     mRes = nullptr;
     mHead.clear();
     mReq.clear();
@@ -293,6 +294,7 @@ void Request::follow(Request* leader)
     if (leader == this) {
         return;
     }
+    mConn = leader->mConn;
     mType = leader->mType;
     mHead = leader->mHead;
     mReq = leader->mReq;

src/Request.h

@@ -71,7 +71,7 @@ public:
     bool isDone() const;
     AcceptConnection* connection() const
     {
-        return mLeader ? mLeader->mConn : mConn;
+        return mConn;
     }
     void detach()
     {