Don't update node pong time via gossip.
Don't update node pong time via gossip.

This feature was implemented in the initial days of the Redis Cluster
implementaiton but is not a good idea at all.

1) It depends on clocks to be synchronized, that is already very bad.
2) Moreover it adds a bug where the pong time is updated via gossip so
no new PING is ever sent by the current node, with the effect of no PONG
received, no update of tables, no clearing of PFAIL flag.

In general to trust other nodes about the reachability of other nodes is
a broken distributed programming model.

idning/redis,4396/redis,aim-for-better/redis,ton31337/redis,fankeke/redis-3.0-annotated,ketor/redis,ytjiang/redis,190235047/redis,elkingtonmcb/redis,gaoxianglong/redis,programmecat/redis,alenslan/redis,mengzhejin/RedisStudy,jxwr/redis,YuraLukashik/redis,LongXQ/redis,tjschuck/redis,francischan714/redis,qiyang0221/redis,thomasdarimont/redis,gilala/bjredis,mgk/redis,OmarQunsul/graph-redis,ouyangkongtong/redis,0x55/redis-3.0-annotated,PradheepShrinivasan/redis,yuzhangjob/redis-3.0-annotated-unstable,hawkchch/redis,ctripcorp/redis,linfangrong/redis,StevenTsai/redis,tellapart/redis,a-pavlov/redis,cusspvz/redis,weizijun/redis,rogerlz/redis,ofirluzon/redis,qiyang0221/redis,xujunhai1991/redis,j0hnma/szredis,tjschuck/redis,yossigo/redis,ReadCode/redis-3.0-annotated,miaoyc1989/redis-3.0-annotated,AALEKH/redis,honestme/redis,sunheehnus/redis,takeshineshiro/redis,blackmady/redis,mgk/redis,ncopa/redis,haima-zju/redis-3.0-annotated,hornen/redis,spinlock/redis,jasonkying/redis,Aliceljm1/redis-3.0-annotated,HouKangkang/redis-3.0-annotated,kensou97/redis,himoca/redis,mengyou0304/redis,PradheepShrinivasan/redis,neomantra/redis,oranagra/redis,universsky/redis,programmecat/redis,wbailey5/redis,allengaller/redis,cloudrain21/redis,thomasdarimont/redis,zguangyu/redis,4396/redis,JoeWoo/redis,netroby/redis,yuhc/redis-benchmark-enhanced,mengyou0304/redis,NBSW/redis,flashbuckets/redis,badboy/redis,ouyangkongtong/redis,Aaron1992/redis,pedigree/redis,davidradunz/redis,h0x91b/redis,blackmady/redis,flashbuckets/redis,wenxueliu/redis_comment,tanghaodong25/redis,rogerchina/redis,hedisdb/hedis,a-pavlov/redis,shshlzh/redis-3.0-annotated,YuanZhewei/redis,louisliangjun/redis,seandsky/redis,simplestbest/redis,nuxeh/redis,zhiliaoniu/redis,splitice/redis,citusdata/redis,drinkthere/redis-3.0-annotated,Soledad89/redis,ouyangkongtong/redis,gilala/hbjredis,slfs007/mk-redis,valdsJohn/redis,ituncle/redis,yossigo/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,mengzhejin/RedisStudy,ton31337/redis,mumingv/redis,yybirdcf/learn-redis,holstvoogd/redis,kensou97/redis,devaos/redis,JoeWoo/redis,ctripcorp/redis,fengshao0907/redis,allengaller/redis,PKRoma/redis,mverrilli/redis,cloudrain21/redis,valdsJohn/redis,dreamquster/redis,miaoyc1989/redis-3.0-annotated,RepmujNetsik/redis,seppo0010/rlite-server,mverrilli/redis,gilala/hbjredis,zhiliaoniu/redis,francischan714/redis,slfs007/mk-redis,NBSW/redis,SummonY/redis,ksarch-saas/redis,soloestoy/redis,blackmady/redis,RepmujNetsik/redis,arijitvt/redis,Aaron1992/redis,h0x91b/redis,colstrom/redis,universsky/redis,wuyu201321060203/redis-3.0-annotated,abhiklodh/redis,devaos/redis,pcarrier/redis,itamarhaber/redis,simplestbest/redis,ttuna/msot-redis,AALEKH/redis,ErikDubbelboer/redis,taoguan/redis,tanghaodong25/redis,roth1002/redis,ton31337/redis,mcanthony/redis,citusdata/redis,gilala/hredis,zhiliaoniu/redis,zguangyu/redis,gilala/redis,190235047/redis,jbochi/redis,davidradunz/redis,shining-yang/redis,4396/redis,HunanTV/redis,thomasdarimont/redis,jacklee0810/redis-3.0-annotated,whille/redis-3.0-annotated,yossigo/redis,Aliceljm1/redis,gaoxianglong/redis,itugs/redis,guker/redis,nilyang/redis-tdd-annotation,duanx/redis,ketor/redis,rouzier/redis,mumingv/redis-3.0-annotated,zhoudayang/redis,arijitvt/redis,buobao/redis-3.0-annotated,yuhc/redis-benchmark-enhanced,AplayER/redis,GrimDerp/redis,flashbuckets/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,ksarch-saas/redis,jingjidejuren/redis,colstrom/redis,SyntaxStacks/redis,zhoudayang/redis,clamoriniere1A/redis,pcarrier/redis,xuzhezhaozhao/redis_reading,rogerchina/redis,nuxeh/redis,ramonsnir/redis,xuzhezhaozhao/redis_reading,z-fork/redis,riyan8250/redis,seppo0010/rlite-server,louisliangjun/redis,fankeke/redis-3.0-annotated,netroby/redis,YongMan/redis,dreamquster/redis,jackyan/redis,itugs/redis,ytjiang/redis,gilala/hbjredis,onlymellb/redis-3.0-annotated,fengshao0907/redis,harrisonfeng/redis,jbochi/redis,hornen/redis,csuhawk/redis,charsyam/redis,ErikDubbelboer/redis,seppo0010/redis,darksideofthemoo/redis-histogram,duanx/redis,netroby/redis,YuraLukashik/redis,msn217/redis-3.0-annotated,fankeke/redis-3.0-annotated,splitice/redis,pmem/redis,brg-liuwei/redis,modulexcite/redis,CodeJuan/redis,zy416548283/redis-3.0-annotated,HeartSaVioR/redis,ipmobiletech/redis,elkingtonmcb/redis,himoca/redis,JoeWoo/redis,ReadCode/redis-3.0-annotated,janekmi/redis,soloestoy/redis,ncopa/redis,zguangyu/redis,elkingtonmcb/redis,ttuna/msot-redis,mverrilli/redis,Markgorden/redis,vincent-vivian-liu/redis,jingjidejuren/redis,drinkthere/redis-3.0-annotated,ksarch-saas/redis,cusspvz/redis,modulexcite/redis,narma/redis,ituncle/redis,gilala/hredis,GrimDerp/redis,qiyang0221/redis,hedisdb/hedis,hawkchch/redis,msn217/redis-3.0-annotated,colstrom/redis,YuraLukashik/redis,hornen/redis,xujunhai1991/redis,spinlock/redis,oranagra/redis,supasate/redis,jacklee0810/redis-3.0-annotated,jackyan/redis,Wangyao14cyy/redis,JoeWoo/redis,zhcy/redis,shshlzh/redis-3.0-annotated,saisai/redis,jingjidejuren/redis,WorkingOfTimtohyZhang/redis-3.0-annotated,ttuna/msot-redis,abhiklodh/redis,pmem/redis,hgl888/redis,seandsky/redis,supasate/redis,abhiklodh/redis,gilala/hbjredis,PradheepShrinivasan/redis,YongMan/redis,roth1002/redis,gaoxianglong/redis,valdsJohn/redis,gongice/redis-3.0-annotated,darksideofthemoo/redis-histogram,wuyu201321060203/redis-3.0-annotated,mumingv/redis-3.0-annotated,dongqifan2/redis-3.0-annotated,sunlianqiang/redis-3.0-annotated,haima-zju/redis-3.0-annotated,kmiku7/redis,devaos/redis,SyntaxStacks/redis,july2993/redis,pkdevbox/redis,unasm/redis-3.0-annotated,csuhawk/redis,kaushik94/redis,StevenTsai/redis,mengyou0304/redis,yybirdcf/learn-redis,MasahikoSawada/redis,atreeyang/redis,nnog/redis,dayuoba/redis,xuguruogu/redis,sunheehnus/redis,Sciumo/redis,zhaobo1023/redis-3.0-annotated,0x55/redis-3.0-annotated,ofirluzon/redis,YuanZhewei/redis,AplayER/redis,AplayER/redis,pcarrier/redis,rrsean/redis-3.0-annotated,pedigree/redis,mverrilli/redis,GitHubMota/redis,timothyohare/3rdPartySrc-redis,HunanTV/redis,shreesundara/redis,honestme/redis,tjschuck/redis,izhoujie/redis,xuguruogu/redis,roth1002/redis,shining-yang/redis,Hailei/redis,gilala/bjredis,modulexcite/redis,pedigree/redis,programmecat/redis,gilala/bjredis,alenslan/redis,dongqifan2/redis-3.0-annotated,hornen/redis,twskipper/redis,spearhead-ea/redis,ituncle/redis,antirez/redis,Sciumo/redis,valdsJohn/redis,Aaron1992/redis,jasonkying/redis,huyuezheng/redis,gilala/redis,xuzhezhaozhao/redis_reading,gongice/redis-3.0-annotated,sunlianqiang/redis-3.0-annotated,gilala/hredis,holstvoogd/redis,hedisdb/hedis,itugs/redis,Wangyao14cyy/redis,gilala/redis,hgl888/redis,Hailei/redis,moonbingbing/redis-3.0-annotated,xujunhai1991/redis,jackyan/redis,shreesundara/redis,xlzhan/redis,wujf/redis,unasm/redis-3.0-annotated,huangz1990/redis-3.0-annotated,Markgorden/redis,josiahcarlson/redis,j0hnma/szredis,allengaller/redis,j0hnma/hszredis,LongXQ/redis,simplestbest/redis,neomantra/redis,Aliceljm1/redis-3.0-annotated,SyntaxStacks/redis,oranagra/redis,soveran/redis,zhaobo1023/redis-3.0-annotated,kaushik94/redis,alenslan/redis,wbailey5/redis,darksideofthemoo/redis-histogram,tellapart/redis,ofirluzon/redis,mattsta/redis,allengaller/redis,pmem/redis,jbochi/redis,francischan714/redis,vincent-vivian-liu/redis,janekmi/redis,citusdata/redis,mengyou0304/redis,badboy/redis,ramonsnir/redis,shreesundara/redis,seppo0010/rlite-server,ErikDubbelboer/redis,pmem/redis,timothyohare/3rdPartySrc-redis,seppo0010/rlite-server,hgl888/redis,MOON-CLJ/redis,dayuoba/redis,dayuoba/redis,elkingtonmcb/redis,iandyh/redis,LongXQ/redis,twskipper/redis,takeshineshiro/redis,huangz1990/experiment-redis,saisai/redis,zy416548283/redis-3.0-annotated,magastzheng/redis-3.0-annotated,iandyh/redis,badboy/redis,wujf/redis,Aliceljm1/redis-3.0-annotated,ipmobiletech/redis,YongMan/redis,maodeyi/redis_lua,xlzhan/redis,wangyikai/redis,duanx/redis,atreeyang/redis,wujf/redis,jacklee0810/redis-3.0-annotated,Soledad89/redis,soloestoy/redis,jackyan/redis,z-fork/redis,cnbin/redis,neomantra/redis,ituncle/redis,brg-liuwei/redis,yuzhangjob/redis-3.0-annotated-unstable,OmarQunsul/graph-redis,itamarhaber/redis,jbochi/parallel_redis,ipmobiletech/redis,buobao/redis-3.0-annotated,h0x91b/redis,oranagra/redis,seandsky/redis,yybirdcf/learn-redis,GitHubMota/redis,huangz1990/redis-3.0-annotated,davidradunz/redis,ctripcorp/redis,mumingv/redis-3.0-annotated,programmecat/redis,saisai/redis,CodeJuan/redis,ncopa/redis,gaoxianglong/redis,xlzhan/redis,kensou97/redis,nnog/redis,spinlock/redis,mcanthony/redis,nuxeh/redis,rogerlz/redis,honestme/redis,Hailei/redis,RepmujNetsik/redis,zhcy/redis,taoguan/redis,MasahikoSawada/redis,timothyohare/3rdPartySrc-redis,jbochi/parallel_redis,vincent-vivian-liu/redis,mingyaaaa/redis,cloudrain21/redis,izhoujie/redis,jasonkying/redis,badboy/redis,huangz1990/experiment-redis,janekmi/redis,whille/redis-3.0-annotated,soveran/redis,zczhuohuo/redis,magastzheng/redis-3.0-annotated,yossigo/redis,soloestoy/redis,MSOpenTech/redis,ytjiang/redis,tellapart/redis,wprice/redis,rouzier/redis,RepmujNetsik/redis,YuanZhewei/redis,iandyh/redis,charsyam/redis,neomantra/redis,ramonsnir/redis,wangyikai/redis,charsyam/redis,itamarhaber/redis,whille/redis-3.0-annotated,guker/redis,jingjidejuren/redis,wbailey5/redis,HouKangkang/redis-3.0-annotated,cusspvz/redis,supasate/redis,gechong/redis-3.0-annotated,0x55/redis-3.0-annotated,PKRoma/redis,vincent-vivian-liu/redis,takeshineshiro/redis,mgk/redis,devaos/redis,SummonY/redis,huyuezheng/redis,YongMan/redis,linfangrong/redis,zczhuohuo/redis,oranagra/redis,linfangrong/redis,fengshao0907/redis,healerkx/redis,onlymellb/redis-3.0-annotated,nilyang/redis-tdd-annotation,Aliceljm1/redis,wangyikai/redis,huangz1990/redis-3.0-annotated,riyan8250/redis,ipmobiletech/redis,buobao/redis-3.0-annotated,wprice/redis,francischan714/redis,shreesundara/redis,charsyam/redis,josiahcarlson/redis,MOON-CLJ/redis,qiyang0221/redis,spinlock/redis,kmiku7/redis,huyuezheng/redis,onlymellb/redis-3.0-annotated,zhiliaoniu/redis,nilyang/redis-tdd-annotation,pkdevbox/redis,iandyh/redis,HeartSaVioR/redis,GitHubMota/redis,darksideofthemoo/redis-histogram,tzq668766/redis-3.0-annotated,ReadCode/redis-3.0-annotated,magastzheng/redis-3.0-annotated,sunheehnus/redis,cnbin/redis,j0hnma/szredis,PKRoma/redis,twskipper/redis,ttuna/msot-redis,antirez/redis,spearhead-ea/redis,janekmi/redis,josiahcarlson/redis,HouKangkang/redis-3.0-annotated,MSOpenTech/redis,OmarQunsul/graph-redis,AALEKH/redis,Aliceljm1/redis,hawkchch/redis,tzq668766/redis-3.0-annotated,j0hnma/hszredis,mumingv/redis,a-pavlov/redis,MasahikoSawada/redis,simplestbest/redis,seppo0010/redis,zhcy/redis,dreamquster/redis,clamoriniere1A/redis,gechong/redis-3.0-annotated,roth1002/redis,jasonkying/redis,sunlianqiang/redis-3.0-annotated,itugs/redis,izhoujie/redis,clamoriniere1A/redis,mattsta/redis,taoguan/redis,yossigo/redis,pedigree/redis,wbailey5/redis,narma/redis,Aaron1992/redis,healerkx/redis,wuyu201321060203/redis-3.0-annotated,mcanthony/redis,healerkx/redis,linfangrong/redis,xlzhan/redis,j0hnma/szredis,CodeJuan/redis,zy416548283/redis-3.0-annotated,huyuezheng/redis,thomasdarimont/redis,PKRoma/redis,harrisonfeng/redis,weizijun/redis,pkdevbox/redis,pkdevbox/redis,netroby/redis,sunheehnus/redis,cloudrain21/redis,StevenTsai/redis,citusdata/redis,moonbingbing/redis-3.0-annotated,rogerlz/redis,haima-zju/redis-3.0-annotated,msn217/redis-3.0-annotated,adamweixuan/redis-3.0-annotated,maodeyi/redis_lua,tanghaodong25/redis,GrimDerp/redis,csuhawk/redis,wuyu201321060203/redis-3.0-annotated,colstrom/redis,josiahcarlson/redis,drinkthere/redis-3.0-annotated,zczhuohuo/redis,slfs007/mk-redis,mingyaaaa/redis,fengshao0907/redis-3.0-annotated,YuraLukashik/redis,louisliangjun/redis,idning/redis,PradheepShrinivasan/redis,Markgorden/redis,july2993/redis,wprice/redis,tjschuck/redis,mumingv/redis,himoca/redis,dreamquster/redis,zhaobo1023/redis-3.0-annotated,Sciumo/redis,OmarQunsul/graph-redis,mingyaaaa/redis,PKRoma/redis,arijitvt/redis,moonbingbing/redis-3.0-annotated,wprice/redis,atreeyang/redis,NBSW/redis,Wangyao14cyy/redis,HeartSaVioR/redis,xuguruogu/redis,ctripcorp/redis,ketor/redis,0x55/redis-3.0-annotated,ttuna/msot-redis,splitice/redis,cusspvz/redis,Sciumo/redis,AplayER/redis,shining-yang/redis,healerkx/redis,rrsean/redis-3.0-annotated,guker/redis,CodeJuan/redis,flashbuckets/redis,takeshineshiro/redis,wenxueliu/redis_comment,rogerchina/redis,harrisonfeng/redis,ErikDubbelboer/redis,wenxueliu/redis_comment,yuhc/redis-benchmark-enhanced,z-fork/redis,cnbin/redis,kmiku7/redis,dongqifan2/redis-3.0-annotated,charsyam/redis,mengzhejin/RedisStudy,louisliangjun/redis,twskipper/redis,HeartSaVioR/redis,nnog/redis,holstvoogd/redis,tellapart/redis,nnog/redis,ofirluzon/redis,miaoyc1989/redis-3.0-annotated,MSOpenTech/redis,xuzhezhaozhao/redis_reading,Wangyao14cyy/redis,LongXQ/redis,timothyohare/3rdPartySrc-redis,rogerchina/redis,neomantra/redis,zhoudayang/redis,taoguan/redis,zczhuohuo/redis,narma/redis,clamoriniere1A/redis,rouzier/redis,brg-liuwei/redis,ofirluzon/redis,ytjiang/redis,yuhc/redis-benchmark-enhanced,antirez/redis,xujunhai1991/redis,gongice/redis-3.0-annotated,kensou97/redis,YuanZhewei/redis,miaoyc1989/redis-3.0-annotated,riyan8250/redis,yuzhangjob/redis-3.0-annotated-unstable,jxwr/redis,izhoujie/redis,itamarhaber/redis,shining-yang/redis,spearhead-ea/redis,gilala/bjredis,universsky/redis,NBSW/redis,kmiku7/redis,MasahikoSawada/redis,aim-for-better/redis,july2993/redis,190235047/redis,davidradunz/redis,zhcy/redis,splitice/redis,Soledad89/redis,zhoudayang/redis,universsky/redis,cnbin/redis,zguangyu/redis,abhiklodh/redis,huangz1990/experiment-redis,h0x91b/redis,mattsta/redis,gilala/redis,SummonY/redis,SyntaxStacks/redis,rouzier/redis,shshlzh/redis-3.0-annotated,j0hnma/hszredis,ncopa/redis,Hailei/redis,riyan8250/redis,unasm/redis-3.0-annotated,blackmady/redis,mumingv/redis,ksarch-saas/redis,idning/redis,kaushik94/redis,Aliceljm1/redis,a-pavlov/redis,hawkchch/redis,nilyang/redis-tdd-annotation,july2993/redis,rrsean/redis-3.0-annotated,aim-for-better/redis,4396/redis,brg-liuwei/redis,jxwr/redis,mengzhejin/RedisStudy,SummonY/redis,fengshao0907/redis-3.0-annotated,fengshao0907/redis,MSOpenTech/redis,alenslan/redis,supasate/redis,shshlzh/redis-3.0-annotated,modulexcite/redis,yybirdcf/learn-redis,csuhawk/redis,ouyangkongtong/redis,gilala/hredis,ton31337/redis,mingyaaaa/redis,gechong/redis-3.0-annotated,harrisonfeng/redis,guker/redis,j0hnma/hszredis,arijitvt/redis,nuxeh/redis,atreeyang/redis,idning/redis,soloestoy/redis,StevenTsai/redis,dayuoba/redis,jbochi/parallel_redis,xuguruogu/redis,weizijun/redis,z-fork/redis,seandsky/redis,wangyikai/redis,tanghaodong25/redis,wujf/redis,hedisdb/hedis,Markgorden/redis,pcarrier/redis,adamweixuan/redis-3.0-annotated,GrimDerp/redis,HunanTV/redis,AALEKH/redis,honestme/redis,mgk/redis,190235047/redis,weizijun/redis,MSOpenTech/redis,saisai/redis,GitHubMota/redis,antirez/redis,soveran/redis,rogerlz/redis,HunanTV/redis,duanx/redis,mcanthony/redis,Soledad89/redis,holstvoogd/redis,hgl888/redis,fengshao0907/redis-3.0-annotated,huangz1990/experiment-redis,adamweixuan/redis-3.0-annotated,seppo0010/redis,kaushik94/redis,MOON-CLJ/redis,tzq668766/redis-3.0-annotated,aim-for-better/redis,wenxueliu/redis_comment,soveran/redis,maodeyi/redis_lua,seppo0010/redis