581             return Status::IOError("Format the output failed");  in MakeStatistics()
605             return Status::IOError("Format output failed");  in MakeStatistics()
635             return Status::IOError("Format output failed");  in MakeStatistics()
673       return Status::IOError("Failed to open accessed_key_stats file.");  in MakeStatisticKeyStatsOrPrefix()
686       return Status::IOError("Format output failed");  in MakeStatisticKeyStatsOrPrefix()
717           return Status::IOError("Format output failed");  in MakeStatisticKeyStatsOrPrefix()
821               return Status::IOError("Format the output failed");  in MakeStatisticQPS()
833             return Status::IOError("Format the output failed");  in MakeStatisticQPS()
883             return Status::IOError("Format the output failed");  in MakeStatisticQPS()
902             return Status::IOError("Format the output failed");  in MakeStatisticQPS()
921                 return Status::IOError("Format the output failed");  in MakeStatisticQPS()
945           return Status::IOError("Format the output failed");  in MakeStatisticQPS()
976           return Status::IOError("Format the output failed");  in MakeStatisticQPS()
1033             return Status::IOError("Format the output failed");  in ReProcessing()
1090                   return Status::IOError("Format the output failed");  in ReProcessing()
1111                   return Status::IOError("Format the output failed");  in ReProcessing()
1929     return Status::IOError("failed to format the output");  in WriteTraceSequence()