You've already forked mariadb-columnstore-engine
mirror of
https://github.com/mariadb-corporation/mariadb-columnstore-engine.git
synced 2025-11-03 17:13:17 +03:00
208 lines
8.2 KiB
C++
208 lines
8.2 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License
|
|
as published by the Free Software Foundation; version 2 of
|
|
the License.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
|
|
MA 02110-1301, USA. */
|
|
|
|
/*
|
|
* $Id: we_bulkrollbackfile.h 4675 2013-06-13 15:20:37Z dcathey $
|
|
*/
|
|
|
|
/** @file
|
|
* Contains class to restore db files on behalf of BulkRollBackMgr.
|
|
* In some cases this means restoring an extent to it's previous state.
|
|
* In some cases, it may mean removing extent(s) that were added to a file.
|
|
* In other cases it may mean completely deleting a db segment file, if that
|
|
* file did not exist prior to an aborted bulk load.
|
|
*/
|
|
|
|
#ifndef WE_BULKROLLBACKFILE_H_
|
|
#define WE_BULKROLLBACKFILE_H_
|
|
|
|
#include <string>
|
|
|
|
#include "we_define.h"
|
|
#include "we_type.h"
|
|
#include "we_fileop.h"
|
|
|
|
namespace WriteEngine
|
|
{
|
|
class BulkRollbackMgr;
|
|
|
|
//------------------------------------------------------------------------------
|
|
/** @brief Class used by BulkRollbackMgr to restore db files.
|
|
*/
|
|
//------------------------------------------------------------------------------
|
|
class BulkRollbackFile
|
|
{
|
|
public:
|
|
|
|
/** @brief BulkRollbackFile constructor
|
|
* @param mgr The controlling BulkRollbackMgr object.
|
|
*/
|
|
BulkRollbackFile(BulkRollbackMgr* mgr);
|
|
|
|
/** @brief BulkRollbackFile destructor
|
|
*/
|
|
virtual ~BulkRollbackFile();
|
|
|
|
/** @brief Construct the relevant db filename.
|
|
* Warning: This function may throw a WeException.
|
|
*
|
|
* @param columnOID OID of the segment file to be deleted
|
|
* @param fileTypeFlag file type (true->column; false->dictionary)
|
|
* @param dbRoot DBRoot of the segment file to be deleted
|
|
* @param partNum Partition number of the segment file to be deleted
|
|
* @param segNum Segment number of the segment file to be deleted
|
|
* @param segFileName (out) Name of segment file
|
|
*/
|
|
void buildSegmentFileName(OID columnOID,
|
|
bool fileTypeFlag,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum,
|
|
std::string& segFileName);
|
|
|
|
/** @brief Delete a segment file.
|
|
* Warning: This function may throw a WeException.
|
|
*
|
|
* @param columnOID OID of the segment file to be deleted
|
|
* @param fileTypeFlag file type (true->column; false->dictionary)
|
|
* @param dbRoot DBRoot of the segment file to be deleted
|
|
* @param partNum Partition number of the segment file to be deleted
|
|
* @param segNum Segment number of the segment file to be deleted
|
|
* @param segFileName Name of segment file to be deleted
|
|
*/
|
|
void deleteSegmentFile(OID columnOID,
|
|
bool fileTypeFlag,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum,
|
|
const std::string& segFileName );
|
|
|
|
/** @brief Construct a directory path.
|
|
*
|
|
* @param oid (in) OID to use in constructing directory path
|
|
* @param dbRoot (in) DBRoot to use in constructing directory path
|
|
* @param partition (in) Partition number to use in constructing dir path
|
|
* @param dirName (out)Directory path constructed from input arguments
|
|
* @return returns NO_ERROR if success
|
|
*/
|
|
int buildDirName( OID oid,
|
|
uint16_t dbRoot,
|
|
uint32_t partition,
|
|
std::string& dirName);
|
|
|
|
/** @brief Do we reinit trailing blocks in the HWM extent for the specified
|
|
* segment file
|
|
*
|
|
* The base behavior of this function always returns true, to reinit
|
|
* any trailing blocks in the HWM extent (for uncompressed data) to
|
|
* empty values.
|
|
*
|
|
* @param columnOID OID of the segment file in question
|
|
* @param dbRoot DBRoot for the segment file in question
|
|
* @param partNum Partition number for the segment file in question
|
|
* @param segNum Segment number for the segment file in question
|
|
*/
|
|
virtual bool doWeReInitExtent( OID columnOID,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum) const;
|
|
|
|
/** @brief Reinitialize the specified column segment file starting at
|
|
* startOffsetBlk, and truncate trailing extents.
|
|
* Warning: This function may throw a WeException.
|
|
*
|
|
* @param columnOID OID of the relevant segment file
|
|
* @param dbRoot DBRoot of the relevant segment file
|
|
* @param partNum Partition number of the relevant segment file
|
|
* @param segNum Segment number of the relevant segment file
|
|
* @param startOffsetBlk Starting block offset where file is to be
|
|
* reinitialized
|
|
* @param nBlocks Number of blocks to be reinitialized
|
|
* @param colType Column type of the relevant segment file
|
|
* @param colWidth Width in bytes of column.
|
|
* @param restoreHwmChk Restore HWM chunk (n/a to uncompressed)
|
|
*/
|
|
virtual void reInitTruncColumnExtent(OID columnOID,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum,
|
|
long long startOffsetBlk,
|
|
int nBlocks,
|
|
execplan::CalpontSystemCatalog::ColDataType colType,
|
|
uint32_t colWidth,
|
|
bool restoreHwmChk );
|
|
|
|
/** @brief Reinitialize the specified dictionary store segment file starting
|
|
* at startOffsetBlk, and truncate trailing extents.
|
|
* Warning: This function may throw a WeException.
|
|
*
|
|
* @param columnOID OID of the relevant segment file
|
|
* @param dbRoot DBRoot of the relevant segment file
|
|
* @param partNum Partition number of the relevant segment file
|
|
* @param segNum Segment number of the relevant segment file
|
|
* @param startOffsetBlk Starting block offset where file is to be
|
|
* reinitialized
|
|
* @param nBlocks Number of blocks to be reinitialized
|
|
*/
|
|
virtual void reInitTruncDctnryExtent(OID columnOID,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum,
|
|
long long startOffsetBlk,
|
|
int nBlocks );
|
|
|
|
/** @brief Truncate the specified segment file to a specified num of bytes
|
|
* Warning: This function may throw a WeException.
|
|
*
|
|
* @param columnOID OID of the relevant segment file
|
|
* @param dbRoot DBRoot of the relevant segment file
|
|
* @param partNum Partition number of the relevant segment file
|
|
* @param segNum Segment number of the relevant segment file
|
|
* @param fileSizeBlocks Number of blocks to retain in the file
|
|
*/
|
|
virtual void truncateSegmentFile( OID columnOID,
|
|
uint32_t dbRoot,
|
|
uint32_t partNum,
|
|
uint32_t segNum,
|
|
long long filesSizeBlocks );
|
|
|
|
protected:
|
|
BulkRollbackMgr* fMgr; // Bulk Rollback controller
|
|
FileOp fDbFile; // interface to DB file
|
|
unsigned char fDctnryHdr[DCTNRY_HEADER_SIZE]; // empty dctnry store blk
|
|
|
|
private:
|
|
// Disable unnecessary copy constructor and assignment operator
|
|
BulkRollbackFile(const BulkRollbackFile& rhs);
|
|
BulkRollbackFile& operator=(const BulkRollbackFile& rhs);
|
|
};
|
|
|
|
//------------------------------------------------------------------------------
|
|
// Inline functions
|
|
//------------------------------------------------------------------------------
|
|
inline int BulkRollbackFile::buildDirName( OID oid,
|
|
uint16_t dbRoot,
|
|
uint32_t partition,
|
|
std::string& dirName)
|
|
{
|
|
return fDbFile.getDirName( oid, dbRoot, partition, dirName );
|
|
}
|
|
|
|
} //end of namespace
|
|
|
|
#endif // WE_BULKROLLBACKFILE_H_
|