add error message if detecting raft.db file
add error message if detecting raft.db file

daachi/influxdb,apigee/influxdb,vladlopes/influxdb,benbjohnson/influxdb,linearb/influxdb,archsaber/influxdb,li-ang/influxdb,archsaber/influxdb,mnuessler/influxdb,influxdb/influxdb,jgeiger/influxdb,joaopedrotaveira/influxdb,pkittenis/influxdb,influxdata/influxdb,runner-mei/influxdb,joaopedrotaveira/influxdb,pkittenis/influxdb,pkittenis/influxdb,arussellsaw/influxdb,mark-rushakoff/influxdb,apigee/influxdb,apigee/influxdb,mvadu/influxdb,mnuessler/influxdb,daachi/influxdb,apigee/influxdb,jgeiger/influxdb,jipperinbham/influxdb,pkittenis/influxdb,jipperinbham/influxdb,nooproblem/influxdb,mvadu/influxdb,pkittenis/influxdb,chenziliang/influxdb,linearb/influxdb,li-ang/influxdb,mark-rushakoff/influxdb,jgeiger/influxdb,influxdb/influxdb,mvadu/influxdb,joaopedrotaveira/influxdb,jipperinbham/influxdb,influxdb/influxdb,benbjohnson/influxdb,mark-rushakoff/influxdb,jgeiger/influxdb,vladlopes/influxdb,otoolep/influxdb,mvadu/influxdb,jipperinbham/influxdb,influxdb/influxdb,jipperinbham/influxdb,daachi/influxdb,daachi/influxdb,mnuessler/influxdb,runner-mei/influxdb,mnuessler/influxdb,linearb/influxdb,mnuessler/influxdb,nooproblem/influxdb,nooproblem/influxdb,archsaber/influxdb,pkittenis/influxdb,mvadu/influxdb,otoolep/influxdb,mark-rushakoff/influxdb,arussellsaw/influxdb,nooproblem/influxdb,mnuessler/influxdb,daachi/influxdb,chenziliang/influxdb,joaopedrotaveira/influxdb,mark-rushakoff/influxdb,nooproblem/influxdb,arussellsaw/influxdb,chenziliang/influxdb,apigee/influxdb,influxdb/influxdb,arussellsaw/influxdb,mark-rushakoff/influxdb,vladlopes/influxdb,linearb/influxdb,daachi/influxdb,jipperinbham/influxdb,mvadu/influxdb,linearb/influxdb,jgeiger/influxdb,otoolep/influxdb,arussellsaw/influxdb,jgeiger/influxdb,benbjohnson/influxdb,otoolep/influxdb,vladlopes/influxdb,chenziliang/influxdb,joaopedrotaveira/influxdb,influxdb/influxdb,otoolep/influxdb,benbjohnson/influxdb,arussellsaw/influxdb,runner-mei/influxdb,runner-mei/influxdb,influxdata/influxdb,apigee/influxdb,otoolep/influxdb,archsaber/influxdb