mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-23 16:12:01 +00:00
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
#include <iostream>
|
|
|
|
#include <boost/program_options.hpp>
|
|
|
|
#include <Compression/CompressedReadBuffer.h>
|
|
#include <Compression/CompressedReadBufferFromFile.h>
|
|
#include <Compression/CompressedWriteBuffer.h>
|
|
#include <Formats/NativeReader.h>
|
|
#include <IO/Operators.h>
|
|
#include <IO/ReadBufferFromFile.h>
|
|
#include <IO/ReadHelpers.h>
|
|
#include <IO/WriteBufferFromFileDescriptor.h>
|
|
#include <Storages/MergeTree/MergeTreeWriteAheadLog.h>
|
|
|
|
/*
|
|
* Dump the Write Ahead Log file, outputs:
|
|
* Part 0, Version: 0, Action : ADD_PART, Name: 4_1_1_0, Block:
|
|
a Int32 Int32(size = 2), b Int32 Int32(size = 2), c Int32 Int32(size = 2)
|
|
*/
|
|
|
|
static void dump(const std::string & bin_path)
|
|
{
|
|
DB::ReadBufferFromFile in(bin_path);
|
|
DB::NativeReader block_in(in, 0);
|
|
DB::Block block;
|
|
|
|
DB::WriteBufferFromFileDescriptor out(STDOUT_FILENO);
|
|
|
|
for (size_t part_num = 0; !in.eof(); ++part_num)
|
|
{
|
|
UInt8 version;
|
|
String part_name;
|
|
DB::MergeTreeWriteAheadLog::ActionType action_type;
|
|
|
|
DB::readIntBinary(version, in);
|
|
DB::readIntBinary(action_type, in);
|
|
DB::readStringBinary(part_name, in);
|
|
block = block_in.read();
|
|
|
|
out << "Part " << part_num << ", Version: " << version
|
|
<< ", Action : " << (action_type == DB::MergeTreeWriteAheadLog::ActionType::ADD_PART ? "ADD_PART" : "DROP_PART")
|
|
<< ", Name: " << part_name << ", Block:\n";
|
|
out << block.dumpStructure() << "\n";
|
|
out << "\n" << DB::flush;
|
|
}
|
|
}
|
|
|
|
|
|
int main(int argc, char ** argv)
|
|
{
|
|
boost::program_options::options_description desc("Allowed options");
|
|
desc.add_options()("help,h", "produce help message");
|
|
|
|
boost::program_options::variables_map options;
|
|
boost::program_options::store(boost::program_options::parse_command_line(argc, argv, desc), options);
|
|
|
|
if (options.count("help") || argc != 2)
|
|
{
|
|
std::cout << "Usage: " << argv[0] << " wal.bin" << std::endl;
|
|
std::cout << desc << std::endl;
|
|
return 1;
|
|
}
|
|
|
|
try
|
|
{
|
|
dump(argv[1]);
|
|
}
|
|
catch (const DB::Exception & e)
|
|
{
|
|
std::cerr << e.what() << ", " << e.message() << std::endl
|
|
<< std::endl
|
|
<< "Stack trace:" << std::endl
|
|
<< e.getStackTraceString() << std::endl;
|
|
throw;
|
|
}
|
|
|
|
return 0;
|
|
}
|