core/sql/exp/ExpLOBstats.h

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// Licensed to the Apache Software Foundation (ASF) under one
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#ifndef EXP_LOB_STATS_H
#define EXP_LOB_STATS_H

#include "Platform.h"

#define NUM_NSECS_IN_SEC (1 * 1000 * 1000 * 1000)

/////////////////////////////////////////////////////////////////////////////
// ExLobStats
// Lob/hdfs related stats. Returned when ExLobsOper is called with Lob_Stats oper.
// Caller need to allocate and pass in the struct. ExLobsOper will populate it.
/////////////////////////////////////////////////////////////////////////////
class ExLobStats
{
 public:
  void init();
  ExLobStats& operator+(const ExLobStats &other) ;
  void getVariableStatsInfo(char * dataBuffer,
			    char * datalen,
			    Lng32 maxLen);

  Int64 bytesToRead;
  Int64 bytesRead;
  Int64 bytesWritten;
  Int64 hdfsConnectionTime;
  Int64 CumulativeReadTime;
  Int64 hdfsAccessLayerTime;
  Int64 cursorElapsedTime;
  Int64 CumulativeWriteTime;
  Int64 AvgReadTime;
  Int64 AvgWriteTime;
  Int64 numBufferPrefetchFail;
  Int64 avgReqQueueSize;
  Int64 numReadReqs;
  Int64 numWriteReqs;
  Int64 numHdfsReqs;
  Int64 bytesPrefetched;
  Int64 buffersUsed;
};



#endif