new a directory if the user specified reportdir does not exist
new a directory if the user specified reportdir does not exist

creative-quant/voltdb,kumarrus/voltdb,wolffcm/voltdb,wolffcm/voltdb,flybird119/voltdb,kobronson/cs-voltdb,paulmartel/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,kobronson/cs-voltdb,flybird119/voltdb,zuowang/voltdb,wolffcm/voltdb,migue/voltdb,paulmartel/voltdb,ingted/voltdb,deerwalk/voltdb,zuowang/voltdb,deerwalk/voltdb,flybird119/voltdb,paulmartel/voltdb,creative-quant/voltdb,simonzhangsm/voltdb,zuowang/voltdb,kumarrus/voltdb,flybird119/voltdb,kobronson/cs-voltdb,migue/voltdb,deerwalk/voltdb,kobronson/cs-voltdb,migue/voltdb,paulmartel/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,migue/voltdb,ingted/voltdb,flybird119/voltdb,zuowang/voltdb,flybird119/voltdb,VoltDB/voltdb,wolffcm/voltdb,flybird119/voltdb,VoltDB/voltdb,kumarrus/voltdb,simonzhangsm/voltdb,simonzhangsm/voltdb,zuowang/voltdb,paulmartel/voltdb,kumarrus/voltdb,paulmartel/voltdb,creative-quant/voltdb,kumarrus/voltdb,wolffcm/voltdb,simonzhangsm/voltdb,wolffcm/voltdb,ingted/voltdb,VoltDB/voltdb,creative-quant/voltdb,migue/voltdb,creative-quant/voltdb,creative-quant/voltdb,paulmartel/voltdb,VoltDB/voltdb,kumarrus/voltdb,zuowang/voltdb,migue/voltdb,migue/voltdb,VoltDB/voltdb,creative-quant/voltdb,migue/voltdb,creative-quant/voltdb,zuowang/voltdb,zuowang/voltdb,deerwalk/voltdb,ingted/voltdb,simonzhangsm/voltdb,deerwalk/voltdb,paulmartel/voltdb,ingted/voltdb,kumarrus/voltdb,kobronson/cs-voltdb,kobronson/cs-voltdb,VoltDB/voltdb,ingted/voltdb,flybird119/voltdb,kobronson/cs-voltdb,wolffcm/voltdb,ingted/voltdb,kobronson/cs-voltdb,VoltDB/voltdb,deerwalk/voltdb,simonzhangsm/voltdb,ingted/voltdb,kumarrus/voltdb,deerwalk/voltdb