several of Reynold's suggestions implemented
several of Reynold's suggestions implemented

markhamstra/spark,zero323/spark,shaneknapp/spark,MLnick/spark,big-pegasus/spark,kimoonkim/spark,apache/spark,tengpeng/spark,Panos-Bletsos/spark-cost-model-optimizer,ron8hu/spark,shubhamchopra/spark,Aegeaner/spark,BryanCutler/spark,sachintyagi22/spark,JoshRosen/spark,goldmedal/spark,xuanyuanking/spark,dhruve/spark,bOOm-X/spark,lxsmnv/spark,actuaryzhang/spark,alunarbeach/spark,zhouyejoe/spark,cloud-fan/spark,saltstar/spark,sahilTakiar/spark,cin/spark,goldmedal/spark,publicRoman/spark,BryanCutler/spark,ConeyLiu/spark,mahak/spark,janewangfb/spark,yanboliang/spark,UndeadBaneGitHub/spark,bdrillard/spark,panfengfeng/spark,rekhajoshm/spark,icexelloss/spark,MLnick/spark,kissmetrics/spark,esi-mineset/spark,LantaoJin/spark,bdrillard/spark,akopich/spark,poffuomo/spark,WeichenXu123/spark,taroplus/spark,apache/spark,spark-test/spark,alunarbeach/spark,wangmiao1981/spark,bdrillard/spark,someorz/spark,goldmedal/spark,nchammas/spark,ibm-research-ireland/sparkoscope,WindCanDie/spark,WindCanDie/spark,1haodian/spark,JerryLead/spark,JerryLead/spark,bdrillard/spark,big-pegasus/spark,zero323/spark,byakuinss/spark,joseph-torres/spark,taroplus/spark,ioana-delaney/spark,WeichenXu123/spark,xflin/spark,cloudera/spark,metamx/spark,setjet/spark,1haodian/spark,apache-spark-on-k8s/spark,sureshthalamati/spark,lxsmnv/spark,kimoonkim/spark,xflin/spark,guoxiaolongzte/spark,narahari92/spark,srowen/spark,WeichenXu123/spark,dongjoon-hyun/spark,rezasafi/spark,UndeadBaneGitHub/spark,tejasapatil/spark,darionyaphet/spark,vinodkc/spark,zhouyejoe/spark,pgandhi999/spark,ajaysaini725/spark,zhouyejoe/spark,huang1900/spark,brad-kaiser/spark,jkbradley/spark,andrewor14/iolap,chuckchen/spark,minixalpha/spark,zhouyejoe/spark,zuotingbing/spark,joseph-torres/spark,dhruve/spark,markhamstra/spark,dongjoon-hyun/spark,goldmedal/spark,michalsenkyr/spark,tejasapatil/spark,patrick-nicholson/spark,wzhfy/spark,SHASHANKB/spark,debugger87/spark,jianran/spark,HyukjinKwon/spark,jiangxb1987/spark,cloudera/spark,ahnqirage/spark,michalsenkyr/spark,guoxiaolongzte/spark,holdenk/spark,lxsmnv/spark,taroplus/spark,ueshin/apache-spark,pronix/spark,WeichenXu123/spark,dongjoon-hyun/spark,ron8hu/spark,witgo/spark,jianran/spark,shaneknapp/spark,shubhamchopra/spark,skonto/spark,witgo/spark,nchammas/spark,szhem/spark,loneknightpy/spark,xflin/spark,haowu80s/spark,ioana-delaney/spark,ConeyLiu/spark,akopich/spark,JerryLead/spark,techaddict/spark,brad-kaiser/spark,big-pegasus/spark,holdenk/spark,aosagie/spark,vinodkc/spark,sureshthalamati/spark,kevinyu98/spark,liutang123/spark,Aegeaner/spark,LantaoJin/spark,taroplus/spark,tejasapatil/spark,caneGuy/spark,nlalevee/spark,tejasapatil/spark,rednaxelafx/apache-spark,byakuinss/spark,sureshthalamati/spark,Aegeaner/spark,bOOm-X/spark,stanzhai/spark,nlalevee/spark,JerryLead/spark,BryanCutler/spark,xuanyuanking/spark,yanboliang/spark,metamx/spark,HyukjinKwon/spark,caneGuy/spark,wangmiao1981/spark,ptkool/spark,vinodkc/spark,techaddict/spark,rezasafi/spark,dbtsai/spark,gengliangwang/spark,panfengfeng/spark,brad-kaiser/spark,wzhfy/spark,sahilTakiar/spark,dhruve/spark,ajaysaini725/spark,ddna1021/spark,sachintyagi22/spark,szhem/spark,ericvandenbergfb/spark,xuanyuanking/spark,haowu80s/spark,panfengfeng/spark,mike0sv/spark,SHASHANKB/spark,highfei2011/spark,metamx/spark,janewangfb/spark,patrick-nicholson/spark,dongjoon-hyun/spark,mahak/spark,mdespriee/spark,WindCanDie/spark,ericvandenbergfb/spark,pronix/spark,UndeadBaneGitHub/spark,ddna1021/spark,rekhajoshm/spark,liutang123/spark,byakuinss/spark,andrewor14/iolap,rednaxelafx/apache-spark,gioenn/xSpark,tejasapatil/spark,mkolod/incubator-spark,vinodkc/spark,spark-test/spark,facaiy/spark,pgandhi999/spark,matthewfranglen/spark,patrick-nicholson/spark,holdenk/spark,actuaryzhang/spark,rednaxelafx/apache-spark,ioana-delaney/spark,darionyaphet/spark,stanzhai/spark,loneknightpy/spark,saturday-shi/spark,zero323/spark,SnappyDataInc/spark,mkolod/incubator-spark,actuaryzhang/spark,narahari92/spark,rikima/spark,tejasapatil/spark,dhruve/spark,gengliangwang/spark,wangyum/spark,hvanhovell/spark,dongjoon-hyun/spark,bdrillard/spark,nchammas/spark,mzl9039/spark,mike0sv/spark,BryanCutler/spark,LantaoJin/spark,wzhfy/spark,aray/spark,ptkool/spark,ibm-research-ireland/sparkoscope,mkolod/incubator-spark,minixalpha/spark,spark-test/spark,xuanyuanking/spark,esi-mineset/spark,sryza/spark,andrewor14/spark,nilsgrabbert/spark,map222/spark,eyalfa/spark,shaneknapp/spark,darionyaphet/spark,jiangxb1987/spark,jrshust/spark,andrewor14/iolap,liyichao/spark,sachintyagi22/spark,goldmedal/spark,cloud-fan/spark,kissmetrics/spark,stanzhai/spark,UndeadBaneGitHub/spark,zhouyejoe/spark,haowu80s/spark,ioana-delaney/spark,bOOm-X/spark,ajaysaini725/spark,tejasapatil/spark,liutang123/spark,zuotingbing/spark,jrshust/spark,nlalevee/spark,pronix/spark,Aegeaner/spark,lvdongr/spark,andrewor14/spark,mdespriee/spark,lvdongr/spark,facaiy/spark,sahilTakiar/spark,SnappyDataInc/spark,Panos-Bletsos/spark-cost-model-optimizer,shuangshuangwang/spark,mahak/spark,nlalevee/spark,hvanhovell/spark,guoxiaolongzte/spark,janewangfb/spark,publicRoman/spark,jlopezmalla/spark,1haodian/spark,highfei2011/spark,apache-spark-on-k8s/spark,zzcclp/spark,cloudera/spark,shubhamchopra/spark,tengpeng/spark,ron8hu/spark,nilsgrabbert/spark,setjet/spark,ueshin/apache-spark,caneGuy/spark,WeichenXu123/spark,hhbyyh/spark,xflin/spark,aosagie/spark,gioenn/xSpark,aokolnychyi/spark,zzcclp/spark,esi-mineset/spark,kimoonkim/spark,nlalevee/spark,milliman/spark,SnappyDataInc/spark,andrewor14/spark,akopich/spark,adrian-ionescu/apache-spark,dhruve/spark,taroplus/spark,ajaysaini725/spark,facaiy/spark,esi-mineset/spark,icexelloss/spark,esi-mineset/spark,shaneknapp/spark,saturday-shi/spark,gengliangwang/spark,byakuinss/spark,holdenk/spark,publicRoman/spark,pronix/spark,actuaryzhang/spark,bravo-zhang/spark,sahilTakiar/spark,Panos-Bletsos/spark-cost-model-optimizer,michalsenkyr/spark,JoshRosen/spark,SHASHANKB/spark,mdespriee/spark,publicRoman/spark,apache/spark,mkolod/incubator-spark,map222/spark,dhruve/spark,rikima/spark,ron8hu/spark,shuangshuangwang/spark,joseph-torres/spark,rednaxelafx/apache-spark,chuckchen/spark,dongjoon-hyun/spark,jkbradley/spark,debugger87/spark,shubhamchopra/spark,mike0sv/spark,skonto/spark,sryza/spark,patrick-nicholson/spark,SnappyDataInc/spark,highfei2011/spark,sachintyagi22/spark,aosagie/spark,kissmetrics/spark,cin/spark,michalsenkyr/spark,brad-kaiser/spark,poffuomo/spark,saturday-shi/spark,milliman/spark,MLnick/spark,bOOm-X/spark,sachintyagi22/spark,aray/spark,aray/spark,ueshin/apache-spark,gioenn/xSpark,Aegeaner/spark,nilsgrabbert/spark,hhbyyh/spark,pronix/spark,rekhajoshm/spark,ConeyLiu/spark,saltstar/spark,gioenn/xSpark,nchammas/spark,haowu80s/spark,markhamstra/spark,yanboliang/spark,metamx/spark,LantaoJin/spark,huang1900/spark,wzhfy/spark,poffuomo/spark,zzcclp/spark,ericvandenbergfb/spark,shuangshuangwang/spark,cloud-fan/spark,cin/spark,nilsgrabbert/spark,sureshthalamati/spark,patrick-nicholson/spark,nchammas/spark,zzcclp/spark,metamx/spark,jiangxb1987/spark,highfei2011/spark,caneGuy/spark,witgo/spark,JerryLead/spark,minixalpha/spark,srowen/spark,jianran/spark,kissmetrics/spark,mkolod/incubator-spark,techaddict/spark,lxsmnv/spark,liutang123/spark,rezasafi/spark,saturday-shi/spark,huang1900/spark,poffuomo/spark,saltstar/spark,ajaysaini725/spark,Panos-Bletsos/spark-cost-model-optimizer,kimoonkim/spark,cloud-fan/spark,ptkool/spark,byakuinss/spark,Panos-Bletsos/spark-cost-model-optimizer,janewangfb/spark,gengliangwang/spark,highfei2011/spark,hvanhovell/spark,adrian-ionescu/apache-spark,cloud-fan/spark,jianran/spark,WeichenXu123/spark,pgandhi999/spark,sureshthalamati/spark,ioana-delaney/spark,aokolnychyi/spark,taroplus/spark,goldmedal/spark,janewangfb/spark,ericvandenbergfb/spark,mdespriee/spark,ConeyLiu/spark,kiszk/spark,Aegeaner/spark,cloud-fan/spark,gengliangwang/spark,jlopezmalla/spark,chuckchen/spark,sahilTakiar/spark,techaddict/spark,ericvandenbergfb/spark,stanzhai/spark,apache/spark,holdenk/spark,MLnick/spark,liutang123/spark,Panos-Bletsos/spark-cost-model-optimizer,saltstar/spark,wangmiao1981/spark,dotunolafunmiloye/spark,SHASHANKB/spark,aosagie/spark,ueshin/apache-spark,actuaryzhang/spark,setjet/spark,brad-kaiser/spark,akopich/spark,janewangfb/spark,kissmetrics/spark,jlopezmalla/spark,nilsgrabbert/spark,bOOm-X/spark,wzhfy/spark,minixalpha/spark,WeichenXu123/spark,apache-spark-on-k8s/spark,hhbyyh/spark,bOOm-X/spark,gioenn/xSpark,yanboliang/spark,panfengfeng/spark,JerryLead/spark,wangyum/spark,witgo/spark,janewangfb/spark,wangyum/spark,milliman/spark,cloudera/spark,maropu/spark,aray/spark,yanboliang/spark,ptkool/spark,narahari92/spark,kevinyu98/spark,saltstar/spark,apache/spark,zero323/spark,mzl9039/spark,saturday-shi/spark,byakuinss/spark,zzcclp/spark,darionyaphet/spark,andrewor14/iolap,byakuinss/spark,HyukjinKwon/spark,maropu/spark,cin/spark,wangmiao1981/spark,andrewor14/spark,bOOm-X/spark,srowen/spark,mahak/spark,SHASHANKB/spark,cloudera/spark,narahari92/spark,skonto/spark,wangyum/spark,markhamstra/spark,lvdongr/spark,bravo-zhang/spark,eyalfa/spark,hhbyyh/spark,jiangxb1987/spark,aokolnychyi/spark,someorz/spark,UndeadBaneGitHub/spark,map222/spark,HyukjinKwon/spark,xflin/spark,patrick-nicholson/spark,kevinyu98/spark,ahnqirage/spark,debugger87/spark,apache-spark-on-k8s/spark,kiszk/spark,lxsmnv/spark,WindCanDie/spark,zhouyejoe/spark,joseph-torres/spark,darionyaphet/spark,aokolnychyi/spark,jrshust/spark,setjet/spark,debugger87/spark,JoshRosen/spark,wangmiao1981/spark,techaddict/spark,spark-test/spark,1haodian/spark,zzcclp/spark,jianran/spark,jkbradley/spark,loneknightpy/spark,lvdongr/spark,debugger87/spark,jlopezmalla/spark,map222/spark,witgo/spark,ron8hu/spark,kiszk/spark,rezasafi/spark,taroplus/spark,mike0sv/spark,chuckchen/spark,panfengfeng/spark,skonto/spark,mzl9039/spark,jianran/spark,guoxiaolongzte/spark,kiszk/spark,sahilTakiar/spark,joseph-torres/spark,bdrillard/spark,ibm-research-ireland/sparkoscope,mzl9039/spark,spark-test/spark,milliman/spark,haowu80s/spark,gengliangwang/spark,big-pegasus/spark,zuotingbing/spark,tengpeng/spark,srowen/spark,kimoonkim/spark,panfengfeng/spark,brad-kaiser/spark,chuckchen/spark,JoshRosen/spark,rednaxelafx/apache-spark,ueshin/apache-spark,jkbradley/spark,joseph-torres/spark,apache-spark-on-k8s/spark,michalsenkyr/spark,WindCanDie/spark,kimoonkim/spark,spark-test/spark,ahnqirage/spark,ddna1021/spark,vinodkc/spark,nilsgrabbert/spark,kevinyu98/spark,rekhajoshm/spark,michalsenkyr/spark,BryanCutler/spark,someorz/spark,shaneknapp/spark,minixalpha/spark,jlopezmalla/spark,eyalfa/spark,skonto/spark,wangmiao1981/spark,yanboliang/spark,publicRoman/spark,nlalevee/spark,ibm-research-ireland/sparkoscope,facaiy/spark,JoshRosen/spark,BryanCutler/spark,wzhfy/spark,lvdongr/spark,sachintyagi22/spark,guoxiaolongzte/spark,ibm-research-ireland/sparkoscope,wzhfy/spark,loneknightpy/spark,mahak/spark,rekhajoshm/spark,aosagie/spark,ddna1021/spark,facaiy/spark,stanzhai/spark,nchammas/spark,actuaryzhang/spark,poffuomo/spark,hvanhovell/spark,JerryLead/spark,ueshin/apache-spark,JoshRosen/spark,dbtsai/spark,stanzhai/spark,narahari92/spark,SHASHANKB/spark,liyichao/spark,joseph-torres/spark,darionyaphet/spark,ddna1021/spark,lxsmnv/spark,nlalevee/spark,dbtsai/spark,loneknightpy/spark,esi-mineset/spark,ptkool/spark,highfei2011/spark,andrewor14/spark,witgo/spark,maropu/spark,lxsmnv/spark,rednaxelafx/apache-spark,chuckchen/spark,gengliangwang/spark,aray/spark,ddna1021/spark,dongjoon-hyun/spark,ConeyLiu/spark,kimoonkim/spark,debugger87/spark,actuaryzhang/spark,bravo-zhang/spark,dhruve/spark,andrewor14/spark,akopich/spark,huang1900/spark,apache-spark-on-k8s/spark,goldmedal/spark,dotunolafunmiloye/spark,alunarbeach/spark,mzl9039/spark,eyalfa/spark,bravo-zhang/spark,jkbradley/spark,sureshthalamati/spark,jiangxb1987/spark,big-pegasus/spark,HyukjinKwon/spark,loneknightpy/spark,BryanCutler/spark,jrshust/spark,MLnick/spark,jrshust/spark,ericvandenbergfb/spark,ericvandenbergfb/spark,hhbyyh/spark,pgandhi999/spark,gioenn/xSpark,tengpeng/spark,HyukjinKwon/spark,someorz/spark,1haodian/spark,ptkool/spark,szhem/spark,setjet/spark,guoxiaolongzte/spark,andrewor14/iolap,maropu/spark,JoshRosen/spark,setjet/spark,kiszk/spark,narahari92/spark,kiszk/spark,icexelloss/spark,haowu80s/spark,ahnqirage/spark,saltstar/spark,1haodian/spark,ptkool/spark,adrian-ionescu/apache-spark,kevinyu98/spark,big-pegasus/spark,tengpeng/spark,publicRoman/spark,zuotingbing/spark,zuotingbing/spark,aosagie/spark,ibm-research-ireland/sparkoscope,techaddict/spark,dbtsai/spark,map222/spark,facaiy/spark,ddna1021/spark,huang1900/spark,szhem/spark,jiangxb1987/spark,saturday-shi/spark,map222/spark,icexelloss/spark,rezasafi/spark,big-pegasus/spark,vinodkc/spark,kissmetrics/spark,xuanyuanking/spark,wangyum/spark,wangyum/spark,MLnick/spark,mike0sv/spark,mike0sv/spark,hvanhovell/spark,chuckchen/spark,ajaysaini725/spark,maropu/spark,liyichao/spark,ConeyLiu/spark,ibm-research-ireland/sparkoscope,guoxiaolongzte/spark,shuangshuangwang/spark,aray/spark,liutang123/spark,aokolnychyi/spark,sryza/spark,yanboliang/spark,rikima/spark,shaneknapp/spark,saltstar/spark,bravo-zhang/spark,minixalpha/spark,LantaoJin/spark,poffuomo/spark,dbtsai/spark,markhamstra/spark,mahak/spark,jrshust/spark,alunarbeach/spark,zuotingbing/spark,WindCanDie/spark,kevinyu98/spark,adrian-ionescu/apache-spark,LantaoJin/spark,adrian-ionescu/apache-spark,caneGuy/spark,eyalfa/spark,holdenk/spark,rekhajoshm/spark,Panos-Bletsos/spark-cost-model-optimizer,liutang123/spark,zero323/spark,dbtsai/spark,andrewor14/spark,sureshthalamati/spark,liyichao/spark,srowen/spark,cin/spark,patrick-nicholson/spark,lvdongr/spark,ioana-delaney/spark,mzl9039/spark,WindCanDie/spark,icexelloss/spark,someorz/spark,spark-test/spark,loneknightpy/spark,zzcclp/spark,alunarbeach/spark,publicRoman/spark,sryza/spark,milliman/spark,markhamstra/spark,jkbradley/spark,alunarbeach/spark,map222/spark,skonto/spark,zhouyejoe/spark,sryza/spark,hhbyyh/spark,lvdongr/spark,nchammas/spark,caneGuy/spark,milliman/spark,icexelloss/spark,mdespriee/spark,LantaoJin/spark,sachintyagi22/spark,mzl9039/spark,szhem/spark,SHASHANKB/spark,jianran/spark,ioana-delaney/spark,darionyaphet/spark,pronix/spark,pgandhi999/spark,ahnqirage/spark,MLnick/spark,panfengfeng/spark,bravo-zhang/spark,facaiy/spark,dotunolafunmiloye/spark,szhem/spark,liyichao/spark,metamx/spark,shaneknapp/spark,andrewor14/iolap,ConeyLiu/spark,techaddict/spark,rezasafi/spark,mdespriee/spark,caneGuy/spark,vinodkc/spark,esi-mineset/spark,liyichao/spark,ron8hu/spark,xuanyuanking/spark,milliman/spark,skonto/spark,brad-kaiser/spark,rekhajoshm/spark,eyalfa/spark,akopich/spark,icexelloss/spark,zero323/spark,ahnqirage/spark,cin/spark,tengpeng/spark,jrshust/spark,rikima/spark,shubhamchopra/spark,maropu/spark,cin/spark,aokolnychyi/spark,adrian-ionescu/apache-spark,wangyum/spark,ajaysaini725/spark,xflin/spark,xflin/spark,metamx/spark,srowen/spark,mahak/spark,zuotingbing/spark,debugger87/spark,dotunolafunmiloye/spark,eyalfa/spark,nilsgrabbert/spark,dbtsai/spark,pgandhi999/spark,ron8hu/spark,wangmiao1981/spark,highfei2011/spark,poffuomo/spark,1haodian/spark,ahnqirage/spark,mike0sv/spark,bdrillard/spark,witgo/spark,apache/spark,liyichao/spark,mdespriee/spark,SnappyDataInc/spark,xuanyuanking/spark,kevinyu98/spark,kissmetrics/spark,huang1900/spark,adrian-ionescu/apache-spark,jkbradley/spark,hhbyyh/spark,rednaxelafx/apache-spark,shubhamchopra/spark,rikima/spark,jlopezmalla/spark,szhem/spark,kiszk/spark,someorz/spark,huang1900/spark,SnappyDataInc/spark,saturday-shi/spark,michalsenkyr/spark,holdenk/spark,hvanhovell/spark,minixalpha/spark,HyukjinKwon/spark,shuangshuangwang/spark,aokolnychyi/spark,sahilTakiar/spark,pgandhi999/spark,aosagie/spark,aray/spark,SnappyDataInc/spark,UndeadBaneGitHub/spark,narahari92/spark,apache/spark,markhamstra/spark,andrewor14/iolap,jiangxb1987/spark,shuangshuangwang/spark,shubhamchopra/spark,cloud-fan/spark,Aegeaner/spark,apache-spark-on-k8s/spark,hvanhovell/spark,rikima/spark,someorz/spark,ueshin/apache-spark,gioenn/xSpark,shuangshuangwang/spark,setjet/spark,jlopezmalla/spark,alunarbeach/spark,zero323/spark,stanzhai/spark,rikima/spark,tengpeng/spark,akopich/spark,bravo-zhang/spark,srowen/spark,maropu/spark,rezasafi/spark,UndeadBaneGitHub/spark