fix the chunk_size 
fix the chunk_size 

fix the chunk_size so that doesn't lose some data
arank/mxnet,hesseltuinhof/mxnet,Northrend/mxnet,smolix/incubator-mxnet,sxjscience/mxnet,arikpoz/mxnet,jennyzhang0215/incubator-mxnet,rishita/mxnet,yuruofeifei/mxnet,ForkedReposBak/mxnet,DickJC123/mxnet,lxn2/mxnet,jamesliu/mxnet,crazy-cat/incubator-mxnet,kkk669/mxnet,formath/mxnet,indhub/mxnet,Northrend/mxnet,indhub/mxnet,LinkHS/incubator-mxnet,madjam/mxnet,DickJC123/mxnet,rahul003/mxnet,sxjscience/mxnet,kkk669/mxnet,likelyzhao/mxnet,EvanzzzZ/mxnet,formath/mxnet,arikpoz/mxnet,indhub/mxnet,sergeykolychev/mxnet,tlby/mxnet,wangyum/mxnet,arikpoz/mxnet,lxn2/mxnet,Prasad9/incubator-mxnet,smolix/incubator-mxnet,larroy/mxnet,sxjscience/mxnet,luoyetx/mxnet,xcgoner/dist-mxnet,wangyum/mxnet,yuruofeifei/mxnet,likelyzhao/mxnet,ForkedReposBak/mxnet,arank/mxnet,navrasio/mxnet,Guneet-Dhillon/mxnet,zhreshold/mxnet,TuSimple/mxnet,piiswrong/mxnet,precedenceguo/mxnet,coder-james/mxnet,smolix/incubator-mxnet,tlby/mxnet,arank/mxnet,rahul003/mxnet,weleen/mxnet,coder-james/mxnet,antoan2/incubator-mxnet,larroy/mxnet,dmlc/mxnet,leezu/mxnet,Prasad9/incubator-mxnet,ZihengJiang/mxnet,leezu/mxnet,formath/mxnet,thirdwing/mxnet,eric-haibin-lin/mxnet,arikpoz/mxnet,hpi-xnor/BMXNet,hpi-xnor/BMXNet,yuruofeifei/mxnet,Ldpe2G/mxnet,ZihengJiang/mxnet,larroy/mxnet,piiswrong/mxnet,thirdwing/mxnet,kevinthesun/mxnet,fullfanta/mxnet,piiswrong/mxnet,Mega-DatA-Lab/mxnet,precedenceguo/mxnet,TuSimple/mxnet,solin319/incubator-mxnet,ykim362/mxnet,gautamkmr/incubator-mxnet,fullfanta/mxnet,lxn2/mxnet,rishita/mxnet,reminisce/mxnet,apaleyes/mxnet,gautamkmr/incubator-mxnet,ShownX/incubator-mxnet,mbaijal/incubator-mxnet,CodingCat/mxnet,EvanzzzZ/mxnet,apaleyes/mxnet,yajiedesign/mxnet,fullfanta/mxnet,jamesliu/mxnet,madjam/mxnet,Prasad9/incubator-mxnet,Northrend/mxnet,reminisce/mxnet,lxn2/mxnet,ykim362/mxnet,jiajiechen/mxnet,leezu/mxnet,coder-james/mxnet,navrasio/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,kkk669/mxnet,ZihengJiang/mxnet,saurabh3949/mxnet,jiajiechen/mxnet,madjam/mxnet,rishita/mxnet,likelyzhao/mxnet,pluskid/mxnet,vikingMei/mxnet,CodingCat/mxnet,EvanzzzZ/mxnet,ptrendx/mxnet,kkk669/mxnet,mbaijal/incubator-mxnet,larroy/mxnet,EvanzzzZ/mxnet,ptrendx/mxnet,yajiedesign/mxnet,hotpxl/mxnet,szha/mxnet,madjam/mxnet,antoan2/incubator-mxnet,solin319/incubator-mxnet,fullfanta/mxnet,luoyetx/mxnet,nicklhy/mxnet,EvanzzzZ/mxnet,jiajiechen/mxnet,jamesliu/mxnet,leezu/mxnet,ForkedReposBak/mxnet,tornadomeet/mxnet,ZihengJiang/mxnet,LinkHS/incubator-mxnet,mbaijal/incubator-mxnet,mbaijal/incubator-mxnet,ykim362/mxnet,rahul003/mxnet,navrasio/mxnet,rahul003/mxnet,szha/mxnet,DR08/mxnet,tlby/mxnet,crazy-cat/incubator-mxnet,zhreshold/mxnet,jermainewang/mxnet,leezu/mxnet,kevinthesun/mxnet,crazy-cat/incubator-mxnet,hesseltuinhof/mxnet,navrasio/mxnet,LinkHS/incubator-mxnet,Mega-DatA-Lab/mxnet,jermainewang/mxnet,jermainewang/mxnet,sergeykolychev/mxnet,rahul003/mxnet,danithaca/mxnet,mbaijal/incubator-mxnet,Ldpe2G/mxnet,formath/mxnet,Mega-DatA-Lab/mxnet,arank/mxnet,reminisce/mxnet,tornadomeet/mxnet,saurabh3949/mxnet,coder-james/mxnet,weleen/mxnet,hesseltuinhof/mxnet,jermainewang/mxnet,thirdwing/mxnet,gautamkmr/incubator-mxnet,dmlc/mxnet,kevinthesun/mxnet,hesseltuinhof/mxnet,arikpoz/mxnet,jiajiechen/mxnet,kevinthesun/mxnet,jennyzhang0215/incubator-mxnet,tornadomeet/mxnet,hpi-xnor/BMXNet,TuSimple/mxnet,madjam/mxnet,antoan2/incubator-mxnet,yajiedesign/mxnet,lxn2/mxnet,leezu/mxnet,smolix/incubator-mxnet,hpi-xnor/BMXNet,formath/mxnet,jamesliu/mxnet,likelyzhao/mxnet,antoan2/incubator-mxnet,eric-haibin-lin/mxnet,sxjscience/mxnet,nicklhy/mxnet,hesseltuinhof/mxnet,smolix/incubator-mxnet,zhreshold/mxnet,apaleyes/mxnet,arank/mxnet,xcgoner/dist-mxnet,ForkedReposBak/mxnet,hpi-xnor/BMXNet,Northrend/mxnet,likelyzhao/mxnet,hpi-xnor/BMXNet,apache/incubator-mxnet,reminisce/mxnet,mbaijal/incubator-mxnet,reminisce/mxnet,yuruofeifei/mxnet,pluskid/mxnet,indhub/mxnet,hotpxl/mxnet,LinkHS/incubator-mxnet,CodingCat/mxnet,hpi-xnor/BMXNet,saurabh3949/mxnet,danithaca/mxnet,jennyzhang0215/incubator-mxnet,navrasio/mxnet,EvanzzzZ/mxnet,DR08/mxnet,Northrend/mxnet,sergeykolychev/mxnet,apaleyes/mxnet,sergeykolychev/mxnet,rishita/mxnet,ykim362/mxnet,xcgoner/dist-mxnet,hotpxl/mxnet,ShownX/incubator-mxnet,gautamkmr/incubator-mxnet,gautamkmr/incubator-mxnet,rishita/mxnet,likelyzhao/mxnet,nicklhy/mxnet,smolix/incubator-mxnet,danithaca/mxnet,jamesliu/mxnet,wangyum/mxnet,formath/mxnet,crazy-cat/incubator-mxnet,CodingCat/mxnet,pluskid/mxnet,szha/mxnet,CodingCat/mxnet,rishita/mxnet,ForkedReposBak/mxnet,jennyzhang0215/incubator-mxnet,Guneet-Dhillon/mxnet,stefanhenneking/mxnet,stefanhenneking/mxnet,szha/mxnet,sxjscience/mxnet,EvanzzzZ/mxnet,hesseltuinhof/mxnet,vikingMei/mxnet,xcgoner/dist-mxnet,thirdwing/mxnet,mbaijal/incubator-mxnet,stefanhenneking/mxnet,precedenceguo/mxnet,reminisce/mxnet,dmlc/mxnet,xcgoner/dist-mxnet,ZihengJiang/mxnet,TuSimple/mxnet,apaleyes/mxnet,tornadomeet/mxnet,apaleyes/mxnet,arikpoz/mxnet,Ldpe2G/mxnet,solin319/incubator-mxnet,weleen/mxnet,coder-james/mxnet,mbaijal/incubator-mxnet,szha/mxnet,jermainewang/mxnet,dmlc/mxnet,crazy-cat/incubator-mxnet,likelyzhao/mxnet,Ldpe2G/mxnet,danithaca/mxnet,wangyum/mxnet,dmlc/mxnet,eric-haibin-lin/mxnet,Ldpe2G/mxnet,likelyzhao/mxnet,zhreshold/mxnet,dmlc/mxnet,indhub/mxnet,hotpxl/mxnet,sergeykolychev/mxnet,ptrendx/mxnet,ptrendx/mxnet,fullfanta/mxnet,precedenceguo/mxnet,kkk669/mxnet,solin319/incubator-mxnet,wangyum/mxnet,piiswrong/mxnet,thirdwing/mxnet,leezu/mxnet,larroy/mxnet,antoan2/incubator-mxnet,arikpoz/mxnet,smolix/incubator-mxnet,Northrend/mxnet,DR08/mxnet,rahul003/mxnet,rishita/mxnet,smolix/incubator-mxnet,vikingMei/mxnet,eric-haibin-lin/mxnet,antoan2/incubator-mxnet,nicklhy/mxnet,arank/mxnet,szha/mxnet,sergeykolychev/mxnet,weleen/mxnet,vikingMei/mxnet,yuruofeifei/mxnet,CodingCat/mxnet,coder-james/mxnet,gautamkmr/incubator-mxnet,jermainewang/mxnet,LinkHS/incubator-mxnet,luoyetx/mxnet,Prasad9/incubator-mxnet,danithaca/mxnet,antoan2/incubator-mxnet,Prasad9/incubator-mxnet,indhub/mxnet,wangyum/mxnet,zhreshold/mxnet,saurabh3949/mxnet,EvanzzzZ/mxnet,arikpoz/mxnet,xcgoner/dist-mxnet,vikingMei/mxnet,ForkedReposBak/mxnet,kkk669/mxnet,tornadomeet/mxnet,Mega-DatA-Lab/mxnet,saurabh3949/mxnet,jamesliu/mxnet,piiswrong/mxnet,Mega-DatA-Lab/mxnet,eric-haibin-lin/mxnet,ptrendx/mxnet,madjam/mxnet,ptrendx/mxnet,DR08/mxnet,Ldpe2G/mxnet,ShownX/incubator-mxnet,jennyzhang0215/incubator-mxnet,TuSimple/mxnet,ShownX/incubator-mxnet,hotpxl/mxnet,xcgoner/dist-mxnet,formath/mxnet,apaleyes/mxnet,weleen/mxnet,ForkedReposBak/mxnet,precedenceguo/mxnet,TuSimple/mxnet,hotpxl/mxnet,jiajiechen/mxnet,apache/incubator-mxnet,szha/mxnet,hesseltuinhof/mxnet,saurabh3949/mxnet,jiajiechen/mxnet,ykim362/mxnet,danithaca/mxnet,yuruofeifei/mxnet,ShownX/incubator-mxnet,mbaijal/incubator-mxnet,ykim362/mxnet,ZihengJiang/mxnet,rahul003/mxnet,sxjscience/mxnet,solin319/incubator-mxnet,precedenceguo/mxnet,Ldpe2G/mxnet,madjam/mxnet,gautamkmr/incubator-mxnet,tlby/mxnet,lxn2/mxnet,yuruofeifei/mxnet,wangyum/mxnet,apaleyes/mxnet,tornadomeet/mxnet,antoan2/incubator-mxnet,tornadomeet/mxnet,apache/incubator-mxnet,dmlc/mxnet,Ldpe2G/mxnet,CodingCat/mxnet,solin319/incubator-mxnet,ZihengJiang/mxnet,piiswrong/mxnet,precedenceguo/mxnet,yajiedesign/mxnet,fullfanta/mxnet,yajiedesign/mxnet,ykim362/mxnet,ShownX/incubator-mxnet,formath/mxnet,arikpoz/mxnet,ForkedReposBak/mxnet,kevinthesun/mxnet,jamesliu/mxnet,TuSimple/mxnet,leezu/mxnet,DickJC123/mxnet,pluskid/mxnet,stefanhenneking/mxnet,vikingMei/mxnet,hpi-xnor/BMXNet,nicklhy/mxnet,piiswrong/mxnet,LinkHS/incubator-mxnet,ShownX/incubator-mxnet,jiajiechen/mxnet,zhreshold/mxnet,leezu/mxnet,larroy/mxnet,gautamkmr/incubator-mxnet,kkk669/mxnet,ForkedReposBak/mxnet,formath/mxnet,ykim362/mxnet,ptrendx/mxnet,solin319/incubator-mxnet,navrasio/mxnet,DickJC123/mxnet,saurabh3949/mxnet,jiajiechen/mxnet,stefanhenneking/mxnet,danithaca/mxnet,thirdwing/mxnet,arank/mxnet,reminisce/mxnet,larroy/mxnet,reminisce/mxnet,yuruofeifei/mxnet,LinkHS/incubator-mxnet,danithaca/mxnet,pluskid/mxnet,jermainewang/mxnet,apache/incubator-mxnet,jennyzhang0215/incubator-mxnet,xcgoner/dist-mxnet,reminisce/mxnet,jennyzhang0215/incubator-mxnet,precedenceguo/mxnet,ptrendx/mxnet,Prasad9/incubator-mxnet,crazy-cat/incubator-mxnet,luoyetx/mxnet,madjam/mxnet,tlby/mxnet,solin319/incubator-mxnet,ShownX/incubator-mxnet,coder-james/mxnet,gautamkmr/incubator-mxnet,tlby/mxnet,tlby/mxnet,crazy-cat/incubator-mxnet,nicklhy/mxnet,Prasad9/incubator-mxnet,ptrendx/mxnet,Guneet-Dhillon/mxnet,solin319/incubator-mxnet,rishita/mxnet,weleen/mxnet,jamesliu/mxnet,hotpxl/mxnet,kevinthesun/mxnet,tlby/mxnet,EvanzzzZ/mxnet,yajiedesign/mxnet,fullfanta/mxnet,coder-james/mxnet,nicklhy/mxnet,dmlc/mxnet,Mega-DatA-Lab/mxnet,vikingMei/mxnet,arank/mxnet,LinkHS/incubator-mxnet,pluskid/mxnet,Mega-DatA-Lab/mxnet,stefanhenneking/mxnet,ShownX/incubator-mxnet,CodingCat/mxnet,coder-james/mxnet,sergeykolychev/mxnet,Prasad9/incubator-mxnet,sxjscience/mxnet,dmlc/mxnet,weleen/mxnet,Northrend/mxnet,precedenceguo/mxnet,navrasio/mxnet,TuSimple/mxnet,kevinthesun/mxnet,szha/mxnet,TuSimple/mxnet,luoyetx/mxnet,kevinthesun/mxnet,xcgoner/dist-mxnet,sxjscience/mxnet,lxn2/mxnet,tornadomeet/mxnet,Guneet-Dhillon/mxnet,hpi-xnor/BMXNet,rishita/mxnet,nicklhy/mxnet,Guneet-Dhillon/mxnet,eric-haibin-lin/mxnet,smolix/incubator-mxnet,indhub/mxnet,hesseltuinhof/mxnet,piiswrong/mxnet,Ldpe2G/mxnet,jermainewang/mxnet,lxn2/mxnet,crazy-cat/incubator-mxnet,Prasad9/incubator-mxnet,fullfanta/mxnet,navrasio/mxnet,yuruofeifei/mxnet,thirdwing/mxnet,sergeykolychev/mxnet,pluskid/mxnet,stefanhenneking/mxnet,reminisce/mxnet,nicklhy/mxnet,saurabh3949/mxnet,likelyzhao/mxnet,CodingCat/mxnet,ptrendx/mxnet,wangyum/mxnet,madjam/mxnet,sergeykolychev/mxnet,Guneet-Dhillon/mxnet,thirdwing/mxnet,danithaca/mxnet,jermainewang/mxnet,hesseltuinhof/mxnet,weleen/mxnet,weleen/mxnet,apaleyes/mxnet,tlby/mxnet,jiajiechen/mxnet,szha/mxnet,TuSimple/mxnet,piiswrong/mxnet,jennyzhang0215/incubator-mxnet,zhreshold/mxnet,lxn2/mxnet,zhreshold/mxnet,yajiedesign/mxnet,rahul003/mxnet,kkk669/mxnet,jennyzhang0215/incubator-mxnet,luoyetx/mxnet,stefanhenneking/mxnet,arank/mxnet,hotpxl/mxnet,Mega-DatA-Lab/mxnet,hotpxl/mxnet,pluskid/mxnet,sxjscience/mxnet,vikingMei/mxnet,eric-haibin-lin/mxnet,jamesliu/mxnet,luoyetx/mxnet,DR08/mxnet,eric-haibin-lin/mxnet,DR08/mxnet,navrasio/mxnet,kkk669/mxnet,Guneet-Dhillon/mxnet,DR08/mxnet,Mega-DatA-Lab/mxnet,vikingMei/mxnet,ZihengJiang/mxnet,indhub/mxnet,rahul003/mxnet,Guneet-Dhillon/mxnet,tlby/mxnet,yajiedesign/mxnet,indhub/mxnet,luoyetx/mxnet,DR08/mxnet,thirdwing/mxnet,eric-haibin-lin/mxnet,larroy/mxnet,kevinthesun/mxnet,larroy/mxnet,DR08/mxnet,saurabh3949/mxnet,Guneet-Dhillon/mxnet,crazy-cat/incubator-mxnet,Northrend/mxnet,Northrend/mxnet,tornadomeet/mxnet,stefanhenneking/mxnet,zhreshold/mxnet,yajiedesign/mxnet,fullfanta/mxnet,antoan2/incubator-mxnet,ykim362/mxnet,pluskid/mxnet,wangyum/mxnet,luoyetx/mxnet