increase -Xss to 256k
increase -Xss to 256k

Patch by eevans; reviewed by jbellis for CASSANDRA-5517

tjake/cassandra,krummas/cassandra,asias/cassandra,bpupadhyaya/cassandra,guanxi55nba/db-improvement,strapdata/cassandra,michaelmior/cassandra,yukim/cassandra,juiceblender/cassandra,stef1927/cassandra,GabrielNicolasAvellaneda/cassandra,juiceblender/cassandra,kangkot/stratio-cassandra,sayanh/ViewMaintenanceCassandra,macintoshio/cassandra,Stratio/stratio-cassandra,snazy/cassandra,adelapena/cassandra,yanbit/cassandra,pallavi510/cassandra,DikangGu/cassandra,michaelmior/cassandra,pofallon/cassandra,mashuai/Cassandra-Research,aureagle/cassandra,dongjiaqiang/cassandra,michaelsembwever/cassandra,xiongzheng/Cassandra-Research,Imran-C/cassandra,iburmistrov/Cassandra,driftx/cassandra,sedulam/CASSANDRA-12201,jeffjirsa/cassandra,mshuler/cassandra,newrelic-forks/cassandra,guard163/cassandra,dkua/cassandra,sbtourist/cassandra,ben-manes/cassandra,rmarchei/cassandra,tjake/cassandra,ejankan/cassandra,modempachev4/kassandra,aureagle/cassandra,beobal/cassandra,weideng1/cassandra,blambov/cassandra,nlalevee/cassandra,jasonstack/cassandra,sluk3r/cassandra,stef1927/cassandra,wreda/cassandra,jasonstack/cassandra,adelapena/cassandra,whitepages/cassandra,nlalevee/cassandra,bcoverston/cassandra,belliottsmith/cassandra,josh-mckenzie/cassandra,sedulam/CASSANDRA-12201,ifesdjeen/cassandra,sharvanath/cassandra,adejanovski/cassandra,dkua/cassandra,Jaumo/cassandra,jeromatron/cassandra,swps/cassandra,guanxi55nba/key-value-store,jeromatron/cassandra,beobal/cassandra,weipinghe/cassandra,pkdevbox/cassandra,matthewtt/cassandra_read,project-zerus/cassandra,AtwooTM/cassandra,cooldoger/cassandra,carlyeks/cassandra,apache/cassandra,mt0803/cassandra,instaclustr/cassandra,likaiwalkman/cassandra,nutbunnies/cassandra,rackerlabs/cloudmetrics-cassandra,mkjellman/cassandra,Jollyplum/cassandra,LatencyUtils/cassandra-stress2,nakomis/cassandra,aweisberg/cassandra,chaordic/cassandra,RyanMagnusson/cassandra,yonglehou/cassandra,christian-esken/cassandra,driftx/cassandra,jasonwee/cassandra,qinjin/mdtc-cassandra,dkua/cassandra,nitsanw/cassandra,kgreav/cassandra,thelastpickle/cassandra,yhnishi/cassandra,Instagram/cassandra,bmel/cassandra,yhnishi/cassandra,qinjin/mdtc-cassandra,GabrielNicolasAvellaneda/cassandra,sriki77/cassandra,szhou1234/cassandra,michaelmior/cassandra,pauloricardomg/cassandra,regispl/cassandra,qinjin/mdtc-cassandra,chbatey/cassandra-1,mheffner/cassandra-1,driftx/cassandra,instaclustr/cassandra,jasonwee/cassandra,DikangGu/cassandra,vramaswamy456/cassandra,jsanda/cassandra,RyanMagnusson/cassandra,sriki77/cassandra,fengshao0907/Cassandra-Research,szhou1234/cassandra,a-buck/cassandra,helena/cassandra,matthewtt/cassandra_read,bcoverston/cassandra,ifesdjeen/cassandra,mheffner/cassandra-1,Bj0rnen/cassandra,kangkot/stratio-cassandra,miguel0afd/cassandra-cqlMod,newrelic-forks/cassandra,hhorii/cassandra,jeffjirsa/cassandra,nitsanw/cassandra,pkdevbox/cassandra,rdio/cassandra,cooldoger/cassandra,iamaleksey/cassandra,mshuler/cassandra,boneill42/cassandra,emolsson/cassandra,weideng1/cassandra,EnigmaCurry/cassandra,xiongzheng/Cassandra-Research,iburmistrov/Cassandra,helena/cassandra,sayanh/ViewMaintenanceCassandra,pcn/cassandra-1,aarushi12002/cassandra,ollie314/cassandra,fengshao0907/Cassandra-Research,snazy/cassandra,aboudreault/cassandra,tommystendahl/cassandra,nitsanw/cassandra,jsanda/cassandra,Jaumo/cassandra,mashuai/Cassandra-Research,fengshao0907/cassandra-1,chbatey/cassandra-1,modempachev4/kassandra,shawnkumar/cstargraph,tongjixianing/projects,jbellis/cassandra,yanbit/cassandra,GabrielNicolasAvellaneda/cassandra,scylladb/scylla-tools-java,nakomis/cassandra,Jaumo/cassandra,darach/cassandra,JeremiahDJordan/cassandra,mkjellman/cassandra,EnigmaCurry/cassandra,thelastpickle/cassandra,hhorii/cassandra,mike-tr-adamson/cassandra,chbatey/cassandra-1,spodkowinski/cassandra,iamaleksey/cassandra,yangzhe1991/cassandra,mambocab/cassandra,ibmsoe/cassandra,regispl/cassandra,miguel0afd/cassandra-cqlMod,blambov/cassandra,gdusbabek/cassandra,bcoverston/cassandra,taigetco/cassandra_read,belliottsmith/cassandra,macintoshio/cassandra,Stratio/stratio-cassandra,pauloricardomg/cassandra,codefollower/Cassandra-Research,Imran-C/cassandra,codefollower/Cassandra-Research,ptuckey/cassandra,pthomaid/cassandra,michaelsembwever/cassandra,wreda/cassandra,Instagram/cassandra,mt0803/cassandra,Bj0rnen/cassandra,vaibhi9/cassandra,pthomaid/cassandra,instaclustr/cassandra,mshuler/cassandra,sluk3r/cassandra,apache/cassandra,cooldoger/cassandra,beobal/cassandra,adejanovski/cassandra,kgreav/cassandra,pofallon/cassandra,RyanMagnusson/cassandra,Bj0rnen/cassandra,adejanovski/cassandra,tongjixianing/projects,nvoron23/cassandra,blerer/cassandra,blerer/cassandra,Instagram/cassandra,project-zerus/cassandra,WorksApplications/cassandra,guanxi55nba/key-value-store,pthomaid/cassandra,sivikt/cassandra,vaibhi9/cassandra,jrwest/cassandra,blerer/cassandra,gdusbabek/cassandra,jasobrown/cassandra,josh-mckenzie/cassandra,blambov/cassandra,Stratio/stratio-cassandra,guanxi55nba/db-improvement,whitepages/cassandra,ollie314/cassandra,pcmanus/cassandra,yangzhe1991/cassandra,beobal/cassandra,jkni/cassandra,Imran-C/cassandra,asias/cassandra,likaiwalkman/cassandra,exoscale/cassandra,thobbs/cassandra,szhou1234/cassandra,boneill42/cassandra,cooldoger/cassandra,nutbunnies/cassandra,snazy/cassandra,ibmsoe/cassandra,spodkowinski/cassandra,phact/cassandra,MasahikoSawada/cassandra,newrelic-forks/cassandra,weipinghe/cassandra,guanxi55nba/db-improvement,ifesdjeen/cassandra,DICL/cassandra,caidongyun/cassandra,clohfink/cassandra,Stratio/cassandra,sedulam/CASSANDRA-12201,caidongyun/cassandra,nvoron23/cassandra,joesiewert/cassandra,ptnapoleon/cassandra,juiceblender/cassandra,iamaleksey/cassandra,dongjiaqiang/cassandra,szhou1234/cassandra,taigetco/cassandra_read,EnigmaCurry/cassandra,shawnkumar/cstargraph,sayanh/ViewMaintenanceSupport,scylladb/scylla-tools-java,sayanh/ViewMaintenanceSupport,pauloricardomg/cassandra,yhnishi/cassandra,ejankan/cassandra,kangkot/stratio-cassandra,sbtourist/cassandra,mambocab/cassandra,aweisberg/cassandra,Jollyplum/cassandra,MasahikoSawada/cassandra,boneill42/cassandra,thelastpickle/cassandra,Jollyplum/cassandra,exoscale/cassandra,tommystendahl/cassandra,strapdata/cassandra,phact/cassandra,belliottsmith/cassandra,aweisberg/cassandra,Instagram/cassandra,rdio/cassandra,aweisberg/cassandra,aboudreault/cassandra,michaelsembwever/cassandra,bpupadhyaya/cassandra,darach/cassandra,vramaswamy456/cassandra,rogerchina/cassandra,jeromatron/cassandra,hengxin/cassandra,guard163/cassandra,likaiwalkman/cassandra,vramaswamy456/cassandra,nvoron23/cassandra,caidongyun/cassandra,jasonstack/cassandra,jbellis/cassandra,yonglehou/cassandra,jrwest/cassandra,jrwest/cassandra,aarushi12002/cassandra,clohfink/cassandra,emolsson/cassandra,WorksApplications/cassandra,pofallon/cassandra,helena/cassandra,Stratio/cassandra,sbtourist/cassandra,codefollower/Cassandra-Research,rmarchei/cassandra,adelapena/cassandra,ibmsoe/cassandra,carlyeks/cassandra,krummas/cassandra,LatencyUtils/cassandra-stress2,jeffjirsa/cassandra,kangkot/stratio-cassandra,xiongzheng/Cassandra-Research,yukim/cassandra,WorksApplications/cassandra,mt0803/cassandra,Stratio/cassandra,rackerlabs/cloudmetrics-cassandra,bcoverston/cassandra,apache/cassandra,knifewine/cassandra,thobbs/cassandra,hengxin/cassandra,ptuckey/cassandra,scaledata/cassandra,rmarchei/cassandra,carlyeks/cassandra,swps/cassandra,yanbit/cassandra,clohfink/cassandra,ptnapoleon/cassandra,krummas/cassandra,jasobrown/cassandra,belliottsmith/cassandra,stef1927/cassandra,bdeggleston/cassandra,chaordic/cassandra,pcmanus/cassandra,jasonwee/cassandra,ben-manes/cassandra,iburmistrov/Cassandra,pkdevbox/cassandra,pcn/cassandra-1,weipinghe/cassandra,matthewtt/cassandra_read,a-buck/cassandra,taigetco/cassandra_read,mike-tr-adamson/cassandra,shawnkumar/cstargraph,rackerlabs/cloudmetrics-cassandra,aarushi12002/cassandra,knifewine/cassandra,scylladb/scylla-tools-java,christian-esken/cassandra,thelastpickle/cassandra,kgreav/cassandra,jkni/cassandra,emolsson/cassandra,yangzhe1991/cassandra,josh-mckenzie/cassandra,bdeggleston/cassandra,nlalevee/cassandra,JeremiahDJordan/cassandra,juiceblender/cassandra,bmel/cassandra,jsanda/cassandra,rogerchina/cassandra,ptuckey/cassandra,sharvanath/cassandra,mambocab/cassandra,spodkowinski/cassandra,thobbs/cassandra,gdusbabek/cassandra,a-buck/cassandra,JeremiahDJordan/cassandra,jasobrown/cassandra,AtwooTM/cassandra,bdeggleston/cassandra,mkjellman/cassandra,ejankan/cassandra,blerer/cassandra,scaledata/cassandra,jkni/cassandra,hengxin/cassandra,mshuler/cassandra,tjake/cassandra,blambov/cassandra,ptnapoleon/cassandra,swps/cassandra,pcn/cassandra-1,snazy/cassandra,michaelsembwever/cassandra,jasobrown/cassandra,pcmanus/cassandra,sivikt/cassandra,pallavi510/cassandra,kgreav/cassandra,sluk3r/cassandra,dongjiaqiang/cassandra,aureagle/cassandra,guanxi55nba/key-value-store,modempachev4/kassandra,guard163/cassandra,jbellis/cassandra,DICL/cassandra,sayanh/ViewMaintenanceCassandra,strapdata/cassandra,fengshao0907/Cassandra-Research,bdeggleston/cassandra,sharvanath/cassandra,AtwooTM/cassandra,joesiewert/cassandra,chaordic/cassandra,sivikt/cassandra,vaibhi9/cassandra,yukim/cassandra,mike-tr-adamson/cassandra,nakomis/cassandra,yonglehou/cassandra,DICL/cassandra,josh-mckenzie/cassandra,darach/cassandra,jeffjirsa/cassandra,tommystendahl/cassandra,project-zerus/cassandra,apache/cassandra,spodkowinski/cassandra,wreda/cassandra,adelapena/cassandra,instaclustr/cassandra,knifewine/cassandra,exoscale/cassandra,scylladb/scylla-tools-java,miguel0afd/cassandra-cqlMod,weideng1/cassandra,asias/cassandra,phact/cassandra,MasahikoSawada/cassandra,driftx/cassandra,strapdata/cassandra,krummas/cassandra,bmel/cassandra,DikangGu/cassandra,mashuai/Cassandra-Research,kangkot/stratio-cassandra,yukim/cassandra,bpupadhyaya/cassandra,joesiewert/cassandra,LatencyUtils/cassandra-stress2,aboudreault/cassandra,tommystendahl/cassandra,ben-manes/cassandra,macintoshio/cassandra,mike-tr-adamson/cassandra,ifesdjeen/cassandra,fengshao0907/cassandra-1,pauloricardomg/cassandra,tjake/cassandra,stef1927/cassandra,iamaleksey/cassandra,jrwest/cassandra,whitepages/cassandra,mkjellman/cassandra,mheffner/cassandra-1,scaledata/cassandra,nutbunnies/cassandra,regispl/cassandra,fengshao0907/cassandra-1,Stratio/stratio-cassandra,christian-esken/cassandra,WorksApplications/cassandra,tongjixianing/projects,ollie314/cassandra,rdio/cassandra,sriki77/cassandra,hhorii/cassandra,rogerchina/cassandra,Stratio/stratio-cassandra,clohfink/cassandra,pallavi510/cassandra