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dbms: development [#CONV-2944].

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This commit is contained in:
Alexey Milovidov 2012-03-09 04:45:27 +00:00
parent c255980539
commit 32d28c0384
3 changed files with 58 additions and 0 deletions
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6
dbms/include/DB/DataStreams/IBlockInputStream.h
View File

@ -48,8 +48,14 @@ public:
void dumpTree(std::ostream & ostr, size_t indent = 0);
void dumpTreeWithProfile(std::ostream & ostr, size_t indent = 0);
/// Получить листовые источники (не считая этот).
BlockInputStreams getLeaves();
protected:
BlockInputStreams children;
private:
void getLeavesImpl(BlockInputStreams & res, BlockInputStreamPtr this_shared_ptr = NULL);
};

22
dbms/src/DataStreams/IBlockInputStream.cpp
View File

@ -50,5 +50,27 @@ String IBlockInputStream::getShortName() const
return res;
}
BlockInputStreams IBlockInputStream::getLeaves()
{
BlockInputStreams res;
getLeavesImpl(res);
return res;
}
void IBlockInputStream::getLeavesImpl(BlockInputStreams & res, BlockInputStreamPtr this_shared_ptr)
{
if (children.empty())
{
if (this_shared_ptr)
res.push_back(this_shared_ptr);
}
else
for (BlockInputStreams::iterator it = children.begin(); it != children.end(); ++it)
(*it)->getLeavesImpl(res, *it);
}
}

30
dbms/src/Server/Handler.cpp
View File

@ -1,6 +1,10 @@
#include <iomanip>
#include <Poco/URI.h>
#include <Poco/NumberParser.h>
#include <statdaemons/Stopwatch.h>
#include <DB/Core/ErrorCodes.h>
#include <DB/IO/ReadBufferFromIStream.h>
@ -8,6 +12,8 @@
#include <DB/IO/WriteBufferFromString.h>
#include <DB/IO/WriteHelpers.h>
#include <DB/DataStreams/IProfilingBlockInputStream.h>
#include <DB/Interpreters/executeQuery.h>
#include "Handler.h"
@ -45,7 +51,9 @@ void HTTPRequestHandler::processQuery(Poco::Net::NameValueCollection & params, s
if (params.has("max_threads"))
context.settings.max_threads = Poco::NumberParser::parseUnsigned(params.get("max_threads"));
Stopwatch watch;
executeQuery(in, out, context, query_plan);
watch.stop();
if (query_plan)
{
@ -53,6 +61,28 @@ void HTTPRequestHandler::processQuery(Poco::Net::NameValueCollection & params, s
log_str << "Query plan:\n";
query_plan->dumpTree(log_str);
LOG_DEBUG(log, log_str.str());
/// Выведем информацию о том, сколько считано строк и байт.
BlockInputStreams leaves = query_plan->getLeaves();
size_t rows = 0;
size_t bytes = 0;
for (BlockInputStreams::const_iterator it = leaves.begin(); it != leaves.end(); ++it)
{
if (const IProfilingBlockInputStream * profiling = dynamic_cast<const IProfilingBlockInputStream *>(&**it))
{
const BlockStreamProfileInfo & info = profiling->getInfo();
rows += info.rows;
bytes += info.bytes;
}
}
if (rows != 0)
{
LOG_INFO(log, std::fixed << std::setprecision(3)
<< "Read " << rows << " rows, " << bytes / 1048576.0 << " MB in " << watch.elapsedSeconds() << " sec., "
<< static_cast<size_t>(rows / watch.elapsedSeconds()) << " rows/sec., " << bytes / 1048576.0 / watch.elapsedSeconds() << " MB/sec.");
}
}
}