explain how to work around exec problems in error message patch by jbellis for CASSANDRA-4590
explain how to work around exec problems in error message
patch by jbellis for CASSANDRA-4590

mashuai/Cassandra-Research,mambocab/cassandra,taigetco/cassandra_read,blambov/cassandra,DavidHerzogTU-Berlin/cassandra,tjake/cassandra,strapdata/cassandra,DavidHerzogTU-Berlin/cassandra,bpupadhyaya/cassandra,asias/cassandra,bdeggleston/cassandra,scaledata/cassandra,sbtourist/cassandra,knifewine/cassandra,bcoverston/apache-hosted-cassandra,iburmistrov/Cassandra,pofallon/cassandra,DikangGu/cassandra,vaibhi9/cassandra,ifesdjeen/cassandra,ibmsoe/cassandra,adejanovski/cassandra,szhou1234/cassandra,hhorii/cassandra,bcoverston/cassandra,chaordic/cassandra,bcoverston/cassandra,dprguiuc/Cassandra-Wasef,exoscale/cassandra,lalithsuresh/cassandra-c3,Instagram/cassandra,guanxi55nba/key-value-store,jrwest/cassandra,stef1927/cassandra,pauloricardomg/cassandra,fengshao0907/cassandra-1,szhou1234/cassandra,mshuler/cassandra,iamaleksey/cassandra,thelastpickle/cassandra,carlyeks/cassandra,DikangGu/cassandra,sharvanath/cassandra,macintoshio/cassandra,pkdevbox/cassandra,michaelmior/cassandra,pthomaid/cassandra,matthewtt/cassandra_read,krummas/cassandra,hengxin/cassandra,ptnapoleon/cassandra,gdusbabek/cassandra,guanxi55nba/db-improvement,stef1927/cassandra,jeffjirsa/cassandra,vramaswamy456/cassandra,mkjellman/cassandra,chbatey/cassandra-1,likaiwalkman/cassandra,christian-esken/cassandra,Stratio/cassandra,ptnapoleon/cassandra,ifesdjeen/cassandra,carlyeks/cassandra,likaiwalkman/cassandra,beobal/cassandra,strapdata/cassandra,yonglehou/cassandra,shawnkumar/cstargraph,RyanMagnusson/cassandra,heiko-braun/cassandra,pcmanus/cassandra,Stratio/cassandra,aboudreault/cassandra,sedulam/CASSANDRA-12201,thobbs/cassandra,sedulam/CASSANDRA-12201,lalithsuresh/cassandra-c3,xiongzheng/Cassandra-Research,belliottsmith/cassandra,josh-mckenzie/cassandra,yhnishi/cassandra,gdusbabek/cassandra,mike-tr-adamson/cassandra,pcn/cassandra-1,cooldoger/cassandra,xiongzheng/Cassandra-Research,weipinghe/cassandra,exoscale/cassandra,rdio/cassandra,project-zerus/cassandra,thelastpickle/cassandra,HidemotoNakada/cassandra-udf,mashuai/Cassandra-Research,jkni/cassandra,guanxi55nba/key-value-store,whitepages/cassandra,JeremiahDJordan/cassandra,Stratio/stratio-cassandra,kgreav/cassandra,pofallon/cassandra,blambov/cassandra,sivikt/cassandra,guard163/cassandra,LatencyUtils/cassandra-stress2,bcoverston/apache-hosted-cassandra,tommystendahl/cassandra,scylladb/scylla-tools-java,jasonwee/cassandra,aureagle/cassandra,pkdevbox/cassandra,carlyeks/cassandra,dkua/cassandra,strapdata/cassandra,bdeggleston/cassandra,dprguiuc/Cassandra-Wasef,rmarchei/cassandra,nitsanw/cassandra,newrelic-forks/cassandra,snazy/cassandra,iamaleksey/cassandra,GabrielNicolasAvellaneda/cassandra,ejankan/cassandra,jasonstack/cassandra,joesiewert/cassandra,WorksApplications/cassandra,macintoshio/cassandra,Bj0rnen/cassandra,yukim/cassandra,codefollower/Cassandra-Research,regispl/cassandra,mkjellman/cassandra,scylladb/scylla-tools-java,jbellis/cassandra,chbatey/cassandra-1,josh-mckenzie/cassandra,josh-mckenzie/cassandra,WorksApplications/cassandra,caidongyun/cassandra,wreda/cassandra,regispl/cassandra,thelastpickle/cassandra,pcn/cassandra-1,driftx/cassandra,leomrocha/cassandra,helena/cassandra,sayanh/ViewMaintenanceCassandra,pauloricardomg/cassandra,Instagram/cassandra,ejankan/cassandra,AtwooTM/cassandra,sluk3r/cassandra,bcoverston/cassandra,aweisberg/cassandra,hengxin/cassandra,caidongyun/cassandra,WorksApplications/cassandra,stef1927/cassandra,aarushi12002/cassandra,nvoron23/cassandra,nlalevee/cassandra,kgreav/cassandra,wreda/cassandra,hengxin/cassandra,leomrocha/cassandra,Stratio/stratio-cassandra,DICL/cassandra,DavidHerzogTU-Berlin/cassandraToRun,sriki77/cassandra,juiceblender/cassandra,miguel0afd/cassandra-cqlMod,michaelmior/cassandra,Instagram/cassandra,guard163/cassandra,pofallon/cassandra,pauloricardomg/cassandra,jsanda/cassandra,jrwest/cassandra,ben-manes/cassandra,mheffner/cassandra-1,sriki77/cassandra,jrwest/cassandra,blerer/cassandra,Jaumo/cassandra,jbellis/cassandra,dongjiaqiang/cassandra,aboudreault/cassandra,ejankan/cassandra,belliottsmith/cassandra,lalithsuresh/cassandra-c3,blambov/cassandra,boneill42/cassandra,yanbit/cassandra,nakomis/cassandra,rogerchina/cassandra,fengshao0907/Cassandra-Research,GabrielNicolasAvellaneda/cassandra,matthewtt/cassandra_read,xiongzheng/Cassandra-Research,mike-tr-adamson/cassandra,Jollyplum/cassandra,bcoverston/cassandra,heiko-braun/cassandra,swps/cassandra,spodkowinski/cassandra,driftx/cassandra,nutbunnies/cassandra,gdusbabek/cassandra,jeffjirsa/cassandra,darach/cassandra,juiceblender/cassandra,yhnishi/cassandra,aarushi12002/cassandra,weideng1/cassandra,HidemotoNakada/cassandra-udf,iburmistrov/Cassandra,chaordic/cassandra,asias/cassandra,mt0803/cassandra,sbtourist/cassandra,adejanovski/cassandra,mheffner/cassandra-1,dongjiaqiang/cassandra,chbatey/cassandra-1,blambov/cassandra,krummas/cassandra,mgmuscari/cassandra-cdh4,Jollyplum/cassandra,bmel/cassandra,JeremiahDJordan/cassandra,tjake/cassandra,DavidHerzogTU-Berlin/cassandraToRun,knifewine/cassandra,nakomis/cassandra,Imran-C/cassandra,codefollower/Cassandra-Research,beobal/cassandra,ptuckey/cassandra,ptuckey/cassandra,qinjin/mdtc-cassandra,LatencyUtils/cassandra-stress2,project-zerus/cassandra,apache/cassandra,whitepages/cassandra,kangkot/stratio-cassandra,rmarchei/cassandra,tjake/cassandra,ifesdjeen/cassandra,michaelsembwever/cassandra,miguel0afd/cassandra-cqlMod,ollie314/cassandra,MasahikoSawada/cassandra,jrwest/cassandra,jasonstack/cassandra,nlalevee/cassandra,yukim/cassandra,mt0803/cassandra,boneill42/cassandra,iamaleksey/cassandra,JeremiahDJordan/cassandra,DICL/cassandra,jasobrown/cassandra,bcoverston/apache-hosted-cassandra,DavidHerzogTU-Berlin/cassandra,yonglehou/cassandra,joesiewert/cassandra,macintoshio/cassandra,DavidHerzogTU-Berlin/cassandraToRun,kgreav/cassandra,kangkot/stratio-cassandra,aboudreault/cassandra,EnigmaCurry/cassandra,emolsson/cassandra,emolsson/cassandra,jkni/cassandra,wreda/cassandra,thobbs/cassandra,mgmuscari/cassandra-cdh4,szhou1234/cassandra,jbellis/cassandra,newrelic-forks/cassandra,helena/cassandra,jeromatron/cassandra,a-buck/cassandra,aweisberg/cassandra,chaordic/cassandra,mike-tr-adamson/cassandra,instaclustr/cassandra,pallavi510/cassandra,sharvanath/cassandra,Jollyplum/cassandra,Jaumo/cassandra,adelapena/cassandra,clohfink/cassandra,jsanda/cassandra,apache/cassandra,pcn/cassandra-1,guanxi55nba/db-improvement,RyanMagnusson/cassandra,qinjin/mdtc-cassandra,spodkowinski/cassandra,taigetco/cassandra_read,thelastpickle/cassandra,GabrielNicolasAvellaneda/cassandra,modempachev4/kassandra,regispl/cassandra,scylladb/scylla-tools-java,szhou1234/cassandra,modempachev4/kassandra,sluk3r/cassandra,dkua/cassandra,driftx/cassandra,MasahikoSawada/cassandra,aureagle/cassandra,blerer/cassandra,ollie314/cassandra,adelapena/cassandra,bdeggleston/cassandra,Jaumo/cassandra,mambocab/cassandra,rackerlabs/cloudmetrics-cassandra,clohfink/cassandra,modempachev4/kassandra,nlalevee/cassandra,Stratio/stratio-cassandra,michaelsembwever/cassandra,sriki77/cassandra,aweisberg/cassandra,rackerlabs/cloudmetrics-cassandra,phact/cassandra,leomrocha/cassandra,ibmsoe/cassandra,DICL/cassandra,Stratio/stratio-cassandra,cooldoger/cassandra,jsanda/cassandra,sivikt/cassandra,bdeggleston/cassandra,spodkowinski/cassandra,cooldoger/cassandra,pcmanus/cassandra,snazy/cassandra,bmel/cassandra,aureagle/cassandra,weideng1/cassandra,tommystendahl/cassandra,kangkot/stratio-cassandra,instaclustr/cassandra,bpupadhyaya/cassandra,whitepages/cassandra,instaclustr/cassandra,newrelic-forks/cassandra,sayanh/ViewMaintenanceCassandra,sayanh/ViewMaintenanceSupport,christian-esken/cassandra,hhorii/cassandra,EnigmaCurry/cassandra,miguel0afd/cassandra-cqlMod,sayanh/ViewMaintenanceSupport,jasonstack/cassandra,sbtourist/cassandra,yanbit/cassandra,juiceblender/cassandra,RyanMagnusson/cassandra,pthomaid/cassandra,pallavi510/cassandra,mshuler/cassandra,clohfink/cassandra,ibmsoe/cassandra,jasonwee/cassandra,shawnkumar/cstargraph,a-buck/cassandra,krummas/cassandra,fengshao0907/Cassandra-Research,Imran-C/cassandra,aarushi12002/cassandra,guard163/cassandra,michaelsembwever/cassandra,project-zerus/cassandra,jasobrown/cassandra,fengshao0907/cassandra-1,likaiwalkman/cassandra,nutbunnies/cassandra,ollie314/cassandra,Bj0rnen/cassandra,joesiewert/cassandra,nvoron23/cassandra,tongjixianing/projects,yukim/cassandra,dprguiuc/Cassandra-Wasef,christian-esken/cassandra,heiko-braun/cassandra,michaelmior/cassandra,adejanovski/cassandra,asias/cassandra,tommystendahl/cassandra,nitsanw/cassandra,vaibhi9/cassandra,knifewine/cassandra,dongjiaqiang/cassandra,rogerchina/cassandra,bpupadhyaya/cassandra,adelapena/cassandra,hhorii/cassandra,swps/cassandra,sedulam/CASSANDRA-12201,qinjin/mdtc-cassandra,tjake/cassandra,tongjixianing/projects,mshuler/cassandra,rmarchei/cassandra,jeromatron/cassandra,helena/cassandra,mambocab/cassandra,bmel/cassandra,yukim/cassandra,scylladb/scylla-tools-java,juiceblender/cassandra,matthewtt/cassandra_read,krummas/cassandra,weideng1/cassandra,Stratio/stratio-cassandra,rdio/cassandra,kgreav/cassandra,spodkowinski/cassandra,vramaswamy456/cassandra,WorksApplications/cassandra,nvoron23/cassandra,yhnishi/cassandra,adelapena/cassandra,emolsson/cassandra,yangzhe1991/cassandra,ben-manes/cassandra,jkni/cassandra,ptuckey/cassandra,weipinghe/cassandra,HidemotoNakada/cassandra-udf,stef1927/cassandra,phact/cassandra,pkdevbox/cassandra,tongjixianing/projects,aweisberg/cassandra,Imran-C/cassandra,blerer/cassandra,codefollower/Cassandra-Research,jeffjirsa/cassandra,sivikt/cassandra,iamaleksey/cassandra,LatencyUtils/cassandra-stress2,a-buck/cassandra,mshuler/cassandra,ifesdjeen/cassandra,blerer/cassandra,rdio/cassandra,jeromatron/cassandra,driftx/cassandra,nutbunnies/cassandra,thobbs/cassandra,rackerlabs/cloudmetrics-cassandra,snazy/cassandra,tommystendahl/cassandra,yanbit/cassandra,guanxi55nba/key-value-store,sharvanath/cassandra,snazy/cassandra,taigetco/cassandra_read,phact/cassandra,pcmanus/cassandra,iburmistrov/Cassandra,cooldoger/cassandra,ptnapoleon/cassandra,Stratio/cassandra,belliottsmith/cassandra,fengshao0907/Cassandra-Research,AtwooTM/cassandra,sluk3r/cassandra,mheffner/cassandra-1,sayanh/ViewMaintenanceCassandra,strapdata/cassandra,clohfink/cassandra,weipinghe/cassandra,scaledata/cassandra,MasahikoSawada/cassandra,darach/cassandra,belliottsmith/cassandra,jasobrown/cassandra,pallavi510/cassandra,swps/cassandra,boneill42/cassandra,vaibhi9/cassandra,josh-mckenzie/cassandra,instaclustr/cassandra,vramaswamy456/cassandra,apache/cassandra,pthomaid/cassandra,dkua/cassandra,yangzhe1991/cassandra,kangkot/stratio-cassandra,mkjellman/cassandra,caidongyun/cassandra,mkjellman/cassandra,yangzhe1991/cassandra,jasobrown/cassandra,beobal/cassandra,mashuai/Cassandra-Research,rogerchina/cassandra,pauloricardomg/cassandra,michaelsembwever/cassandra,darach/cassandra,kangkot/stratio-cassandra,shawnkumar/cstargraph,nitsanw/cassandra,apache/cassandra,exoscale/cassandra,mgmuscari/cassandra-cdh4,yonglehou/cassandra,DikangGu/cassandra,fengshao0907/cassandra-1,nakomis/cassandra,jeffjirsa/cassandra,guanxi55nba/db-improvement,Bj0rnen/cassandra,AtwooTM/cassandra,scaledata/cassandra,mike-tr-adamson/cassandra,mt0803/cassandra,ben-manes/cassandra,Instagram/cassandra,EnigmaCurry/cassandra,jasonwee/cassandra,beobal/cassandra