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mariadb-columnstore-engine/versioning/BRM/slavecomm.cpp
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/* Copyright (C) 2014 InfiniDB, Inc.
Copyright (C) 2016 MariaDB Corporation
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: slavecomm.cpp 1839 2013-02-01 17:42:03Z pleblanc $
*
****************************************************************************/
#include <unistd.h>
#include <iostream>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <cstdio>
#include <ctime>
#include <memory>
#include "messagequeue.h"
#include "bytestream.h"
#include "socketclosed.h"
#include "configcpp.h"
#include "IDBDataFile.h"
#include "IDBPolicy.h"
#define SLAVECOMM_DLLEXPORT
#include "slavecomm.h"
#undef SLAVECOMM_DLLEXPORT
#include "installdir.h"
using namespace std;
using namespace messageqcpp;
using namespace idbdatafile;
namespace
{
#ifdef USE_VERY_COMPLEX_DROP_CACHES
void timespec_sub(const struct timespec& tv1, const struct timespec& tv2, double& tm)
{
tm = (double)(tv2.tv_sec - tv1.tv_sec) + 1.e-9 * (tv2.tv_nsec - tv1.tv_nsec);
}
#endif
} // namespace
namespace BRM
{
SlaveComm::SlaveComm(string hostname)
{
config::Config* config = config::Config::makeConfig();
string tmp;
slave = std::make_unique<SlaveDBRMNode>();
bool tellUser = true;
for (;;)
{
try
{
server = std::make_unique<MessageQueueServer>(hostname);
break;
}
catch (runtime_error& re)
{
string what = re.what();
if (what.find("Address already in use") != string::npos)
{
if (tellUser)
{
cerr << "Address already in use, retrying..." << endl;
tellUser = false;
}
sleep(5);
}
else
{
throw;
}
}
}
string tmpDir = startup::StartUp::tmpDir();
/* NOTE: this string has to match whatever is designated as the first slave */
if (hostname == "DBRM_Worker1")
{
try
{
savefile = config->getConfig("SystemConfig", "DBRMRoot");
}
catch (exception& e)
{
savefile = tmpDir + "/BRM_SaveFiles";
}
if (savefile == "")
savefile = tmpDir + "/BRM_SaveFiles";
tmp = "";
try
{
tmp = config->getConfig("SystemConfig", "DBRMSnapshotInterval");
}
catch (exception& e)
{
}
if (tmp == "")
snapshotInterval = 100000;
else
snapshotInterval = config->fromText(tmp);
journalCount = 0;
firstSlave = true;
journalName = savefile + "_journal";
const char* filename = journalName.c_str();
journalh.reset(IDBDataFile::open(IDBPolicy::getType(filename, IDBPolicy::WRITEENG), filename, "a", 0));
if (journalh == nullptr)
throw runtime_error("Could not open the BRM journal for writing!");
}
else
{
savefile = "";
firstSlave = false;
}
takeSnapshot = false;
doSaveDelta = false;
saveFileToggle = true; // start with the suffix "A" rather than "B". Arbitrary.
release = false;
die = false;
standalone = false;
printOnly = false;
//@Bug 2258 DBRMTimeOut is default to 20 seconds
//@BUG 3189 set timeout to 1 second, don't use config setting
// std::string retStr = config->getConfig("SystemConfig", "DBRMTimeOut");
// int secondsToWait = config->fromText(retStr);
MSG_TIMEOUT.tv_nsec = 0;
// if ( secondsToWait > 0 )
// MSG_TIMEOUT.tv_sec = secondsToWait;
// else
MSG_TIMEOUT.tv_sec = 1;
}
SlaveComm::SlaveComm()
{
config::Config* config = config::Config::makeConfig();
string tmpDir = startup::StartUp::tmpDir();
try
{
savefile = config->getConfig("SystemConfig", "DBRMRoot");
}
catch (exception& e)
{
savefile = tmpDir + "/BRM_SaveFiles";
}
if (savefile == "")
savefile = tmpDir + "/BRM_SaveFiles";
journalName = savefile + "_journal";
takeSnapshot = false;
doSaveDelta = false;
saveFileToggle = true; // start with the suffix "A" rather than "B". Arbitrary.
release = false;
die = false;
firstSlave = false;
server = NULL;
standalone = true;
printOnly = false;
slave = std::make_unique<SlaveDBRMNode>();
}
void SlaveComm::stop()
{
die = true;
}
void SlaveComm::reset()
{
release = true;
}
void SlaveComm::run()
{
ByteStream msg;
while (!die)
{
#ifdef BRM_VERBOSE
// cerr << "WorkerComm: waiting for a connection" << endl;
#endif
master = server->accept(&MSG_TIMEOUT);
while (!die && master.isOpen())
{
try
{
msg = master.read(&MSG_TIMEOUT);
}
catch (SocketClosed& e)
{
#ifdef BRM_VERBOSE
cerr << "WorkerComm: remote closed" << endl;
#endif
break;
}
catch (...)
{
#ifdef BRM_VERBOSE
cerr << "WorkerComm: read failed, closing connection" << endl;
#endif
break;
}
if (release)
break;
if (die) // || msg.length() == 0)
break;
if (msg.length() == 0)
continue;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: got a command" << endl;
#endif
try
{
processCommand(msg);
}
catch (exception& e)
{
/*
* The error is either that msg was too short (really slow sender possibly),
* there was a bigger communication failure, or there was a file IO
* error. Closing the connection for now.
*/
cerr << e.what() << endl;
do_undo();
master.close();
}
}
release = false;
master.close();
}
#ifdef BRM_VERBOSE
cerr << "WorkerComm: exiting..." << endl;
#endif
}
void SlaveComm::processCommand(ByteStream& msg)
{
uint8_t cmd;
if (firstSlave)
{
msg.peek(cmd);
if (cmd != CONFIRM)
delta = msg;
}
msg >> cmd;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: command " << (int)cmd << endl;
#endif
switch (cmd)
{
case CREATE_STRIPE_COLUMN_EXTENTS: do_createStripeColumnExtents(msg); break;
case CREATE_COLUMN_EXTENT_DBROOT: do_createColumnExtent_DBroot(msg); break;
case CREATE_COLUMN_EXTENT_EXACT_FILE: do_createColumnExtentExactFile(msg); break;
case CREATE_DICT_STORE_EXTENT: do_createDictStoreExtent(msg); break;
case ROLLBACK_COLUMN_EXTENTS_DBROOT: do_rollbackColumnExtents_DBroot(msg); break;
case ROLLBACK_DICT_STORE_EXTENTS_DBROOT: do_rollbackDictStoreExtents_DBroot(msg); break;
case DELETE_EMPTY_COL_EXTENTS: do_deleteEmptyColExtents(msg); break;
case DELETE_EMPTY_DICT_STORE_EXTENTS: do_deleteEmptyDictStoreExtents(msg); break;
case DELETE_OID: do_deleteOID(msg); break;
case DELETE_OIDS: do_deleteOIDs(msg); break;
case SET_LOCAL_HWM: do_setLocalHWM(msg); break;
case BULK_SET_HWM: do_bulkSetHWM(msg); break;
case BULK_SET_HWM_AND_CP: do_bulkSetHWMAndCP(msg); break;
case WRITE_VB_ENTRY: do_writeVBEntry(msg); break;
case BULK_WRITE_VB_ENTRY: do_bulkWriteVBEntry(msg); break;
case BEGIN_VB_COPY: do_beginVBCopy(msg); break;
case END_VB_COPY: do_endVBCopy(msg); break;
case VB_ROLLBACK1: do_vbRollback1(msg); break;
case VB_ROLLBACK2: do_vbRollback2(msg); break;
case VB_COMMIT: do_vbCommit(msg); break;
case BRM_UNDO: do_undo(); break;
case CONFIRM: do_confirm(); break;
case FLUSH_INODE_CACHES: do_flushInodeCache(); break;
case BRM_CLEAR: do_clear(); break;
case MARKEXTENTINVALID: do_markInvalid(msg); break;
case MARKMANYEXTENTSINVALID: do_markManyExtentsInvalid(msg); break;
case SETEXTENTMAXMIN: do_setExtentMaxMin(msg); break;
case SETMANYEXTENTSMAXMIN: do_setExtentsMaxMin(msg); break;
case TAKE_SNAPSHOT: do_takeSnapshot(); break;
case MERGEMANYEXTENTSMAXMIN: do_mergeExtentsMaxMin(msg); break;
case DELETE_PARTITION: do_deletePartition(msg); break;
case MARK_PARTITION_FOR_DELETION: do_markPartitionForDeletion(msg); break;
case MARK_ALL_PARTITION_FOR_DELETION: do_markAllPartitionForDeletion(msg); break;
case RESTORE_PARTITION: do_restorePartition(msg); break;
case OWNER_CHECK: do_ownerCheck(msg); break;
case LOCK_LBID_RANGES: do_dmlLockLBIDRanges(msg); break;
case RELEASE_LBID_RANGES: do_dmlReleaseLBIDRanges(msg); break;
case DELETE_DBROOT: do_deleteDBRoot(msg); break;
case BULK_UPDATE_DBROOT: do_bulkUpdateDBRoot(msg); break;
default: cerr << "WorkerComm: unknown command " << (int)cmd << endl;
}
}
//------------------------------------------------------------------------------
// Process a request to create a column extent for a specific OID and DBRoot.
//------------------------------------------------------------------------------
void SlaveComm::do_createStripeColumnExtents(ByteStream& msg)
{
int err;
uint16_t tmp16;
uint16_t tmp32;
uint16_t dbRoot;
uint32_t partitionNum;
uint16_t segmentNum;
std::vector<CreateStripeColumnExtentsArgIn> cols;
std::vector<CreateStripeColumnExtentsArgOut> extents;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createStripeColumnExtents()" << endl;
#endif
deserializeInlineVector(msg, cols);
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
if (printOnly)
{
cout << "createStripeColumnExtents(). " << "DBRoot=" << dbRoot << "; Part#=" << partitionNum << endl;
for (uint32_t i = 0; i < cols.size(); i++)
cout << "StripeColExt arg " << i + 1 << ": oid=" << cols[i].oid << " width=" << cols[i].width << endl;
return;
}
err = slave->createStripeColumnExtents(cols, dbRoot, partitionNum, segmentNum, extents);
reply << (uint8_t)err;
if (err == ERR_OK)
{
reply << partitionNum;
reply << segmentNum;
serializeInlineVector(reply, extents);
}
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createStripeColumnExtents() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
// see bug 3596. Need to make sure a snapshot file exists.
if ((cols.size() > 0) && (cols[0].oid < 3000))
takeSnapshot = true;
else
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to create a column extent for a specific OID and DBRoot.
//------------------------------------------------------------------------------
void SlaveComm::do_createColumnExtent_DBroot(ByteStream& msg)
{
int allocdSize, err;
uint8_t tmp8;
uint16_t tmp16;
uint32_t tmp32;
OID_t oid;
uint32_t colWidth;
uint16_t dbRoot;
uint32_t partitionNum;
uint16_t segmentNum;
LBID_t lbid;
uint32_t startBlockOffset;
ByteStream reply;
execplan::CalpontSystemCatalog::ColDataType colDataType;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createColumnExtent_DBroot()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp32;
colWidth = tmp32;
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
msg >> tmp16;
segmentNum = tmp16;
msg >> tmp8;
colDataType = (execplan::CalpontSystemCatalog::ColDataType)tmp8;
if (printOnly)
{
cout << "createColumnExtent_DBroot: oid=" << oid << " colWidth=" << colWidth << " dbRoot=" << dbRoot
<< " partitionNum=" << partitionNum << " segmentNum=" << segmentNum << endl;
return;
}
err = slave->createColumnExtent_DBroot(oid, colWidth, dbRoot, colDataType, partitionNum, segmentNum, lbid,
allocdSize, startBlockOffset);
reply << (uint8_t)err;
if (err == ERR_OK)
{
reply << partitionNum;
reply << segmentNum;
reply << (uint64_t)lbid;
reply << (uint32_t)allocdSize;
reply << (uint32_t)startBlockOffset;
}
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createColumnExtent_DBroot() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
if (oid < 3000) // see bug 3596. Need to make sure a snapshot file exists.
takeSnapshot = true;
else
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to create a column extent for the exact segment file
// specified by the requested OID, DBRoot, partition, and segment.
//------------------------------------------------------------------------------
void SlaveComm::do_createColumnExtentExactFile(ByteStream& msg)
{
int allocdSize, err;
uint8_t tmp8;
uint16_t tmp16;
uint32_t tmp32;
OID_t oid;
uint32_t colWidth;
uint16_t dbRoot;
uint32_t partitionNum;
uint16_t segmentNum;
LBID_t lbid;
uint32_t startBlockOffset;
ByteStream reply;
execplan::CalpontSystemCatalog::ColDataType colDataType;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createColumnExtentExactFile()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp32;
colWidth = tmp32;
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
msg >> tmp16;
segmentNum = tmp16;
msg >> tmp8;
colDataType = (execplan::CalpontSystemCatalog::ColDataType)tmp8;
if (printOnly)
{
cout << "createColumnExtentExactFile: oid=" << oid << " colWidth=" << colWidth << " dbRoot=" << dbRoot
<< " partitionNum=" << partitionNum << " segmentNum=" << segmentNum << endl;
return;
}
err = slave->createColumnExtentExactFile(oid, colWidth, dbRoot, partitionNum, segmentNum, colDataType, lbid,
allocdSize, startBlockOffset);
reply << (uint8_t)err;
if (err == ERR_OK)
{
reply << partitionNum;
reply << segmentNum;
reply << (uint64_t)lbid;
reply << (uint32_t)allocdSize;
reply << (uint32_t)startBlockOffset;
}
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createColumnExtentExactFile() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
if (oid < 3000) // see bug 3596. Need to make sure a snapshot file exists.
takeSnapshot = true;
else
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to create a dictionary store extent.
//------------------------------------------------------------------------------
void SlaveComm::do_createDictStoreExtent(ByteStream& msg)
{
int allocdSize, err;
uint16_t tmp16;
uint32_t tmp32;
OID_t oid;
uint16_t dbRoot;
uint32_t partitionNum;
uint16_t segmentNum;
LBID_t lbid;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createDictStoreExtent()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
msg >> tmp16;
segmentNum = tmp16;
if (printOnly)
{
cout << "createDictStoreExtent: oid=" << oid << " dbRoot=" << dbRoot << " partitionNum=" << partitionNum
<< " segmentNum=" << segmentNum << endl;
return;
}
err = slave->createDictStoreExtent(oid, dbRoot, partitionNum, segmentNum, lbid, allocdSize);
reply << (uint8_t)err;
if (err == ERR_OK)
{
reply << (uint64_t)lbid;
reply << (uint32_t)allocdSize;
}
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_createDictStoreExtent() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to rollback (delete) a set of column extents.
// for a given OID and DBRoot.
//------------------------------------------------------------------------------
void SlaveComm::do_rollbackColumnExtents_DBroot(ByteStream& msg)
{
int err;
OID_t oid;
bool bDeleteAll;
uint32_t partitionNum;
uint16_t segmentNum;
uint16_t dbRoot;
HWM_t hwm;
uint8_t tmp8;
uint16_t tmp16;
uint32_t tmp32;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_rollbackColumnExtents_DBroot()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp8;
bDeleteAll = tmp8;
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
msg >> tmp16;
segmentNum = tmp16;
msg >> tmp32;
hwm = tmp32;
if (printOnly)
{
cout << "rollbackColumnExtents_DBroot: oid=" << oid << " bDeleteAll=" << bDeleteAll
<< " dbRoot=" << dbRoot << " partitionNum=" << partitionNum << " segmentNum=" << segmentNum
<< " hwm=" << hwm << endl;
return;
}
err = slave->rollbackColumnExtents_DBroot(oid, bDeleteAll, dbRoot, partitionNum, segmentNum, hwm);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_rollbackColumnExtents_DBroot() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to rollback (delete) a set of column extents.
// for a given OID and DBRoot.
//------------------------------------------------------------------------------
void SlaveComm::do_rollbackDictStoreExtents_DBroot(ByteStream& msg)
{
int err;
OID_t oid;
uint32_t partitionNum;
uint16_t dbRoot;
uint32_t tmp32;
uint16_t tmp16;
ByteStream reply;
vector<uint16_t> segNums;
vector<HWM_t> hwms;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_rollbackDictStoreExtents()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp16;
dbRoot = tmp16;
msg >> tmp32;
partitionNum = tmp32;
deserializeVector(msg, segNums);
deserializeVector(msg, hwms);
if (printOnly)
{
cout << "rollbackDictStore: oid=" << oid << " dbRoot=" << dbRoot << " partitionNum=" << partitionNum
<< " hwms..." << endl;
for (uint32_t i = 0; i < hwms.size(); i++)
cout << " " << i << ": " << hwms[i] << endl;
return;
}
err = slave->rollbackDictStoreExtents_DBroot(oid, dbRoot, partitionNum, segNums, hwms);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_rollbackDictStoreExtents() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_deleteEmptyColExtents(messageqcpp::ByteStream& msg)
{
OID_t oid;
uint32_t tmp1;
uint16_t tmp2;
int err;
ByteStream reply;
uint32_t size;
ExtentsInfoMap_t extentsInfoMap;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteEmptyColExtents()" << endl;
#endif
msg >> size;
if (printOnly)
cout << "deleteEmptyColExtents: size=" << size << " extentsInfoMap..." << endl;
for (unsigned i = 0; i < size; i++)
{
msg >> tmp1;
oid = tmp1;
extentsInfoMap[oid].oid = oid;
msg >> tmp1;
extentsInfoMap[oid].partitionNum = tmp1;
msg >> tmp2;
extentsInfoMap[oid].segmentNum = tmp2;
msg >> tmp2;
extentsInfoMap[oid].dbRoot = tmp2;
msg >> tmp1;
extentsInfoMap[oid].hwm = tmp1;
if (printOnly)
{
cout << " oid=" << oid << " partitionNum=" << extentsInfoMap[oid].partitionNum
<< " segmentNum=" << extentsInfoMap[oid].segmentNum << " dbRoot=" << extentsInfoMap[oid].dbRoot
<< " hwm=" << extentsInfoMap[oid].hwm << endl;
}
}
if (printOnly)
return;
err = slave->deleteEmptyColExtents(extentsInfoMap);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteEmptyColExtents() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_deleteEmptyDictStoreExtents(messageqcpp::ByteStream& msg)
{
OID_t oid;
uint32_t tmp1;
uint16_t tmp2;
uint8_t tmp3;
int err;
ByteStream reply;
uint32_t size;
ExtentsInfoMap_t extentsInfoMap;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteEmptyDictStoreExtents()" << endl;
#endif
msg >> size;
if (printOnly)
cout << "deleteEmptyDictStoreExtents: size=" << size << " extentsInfoMap..." << endl;
for (unsigned i = 0; i < size; i++)
{
msg >> tmp1;
oid = tmp1;
extentsInfoMap[oid].oid = oid;
msg >> tmp1;
extentsInfoMap[oid].partitionNum = tmp1;
msg >> tmp2;
extentsInfoMap[oid].segmentNum = tmp2;
msg >> tmp2;
extentsInfoMap[oid].dbRoot = tmp2;
msg >> tmp1;
extentsInfoMap[oid].hwm = tmp1;
msg >> tmp3;
extentsInfoMap[oid].newFile = (bool)tmp3;
if (printOnly)
{
cout << " oid=" << oid << " partitionNum=" << extentsInfoMap[oid].partitionNum
<< " segmentNum=" << extentsInfoMap[oid].segmentNum << " dbRoot=" << extentsInfoMap[oid].dbRoot
<< " hwm=" << extentsInfoMap[oid].hwm << " newFile=" << (int)extentsInfoMap[oid].newFile << endl;
}
}
if (printOnly)
return;
err = slave->deleteEmptyDictStoreExtents(extentsInfoMap);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteEmptyDictStoreExtents() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_deleteOID(ByteStream& msg)
{
OID_t oid;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteOID()" << endl;
#endif
msg >> tmp;
oid = tmp;
if (printOnly)
{
cout << "deleteOID: oid=" << oid << endl;
return;
}
err = slave->deleteOID(oid);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteOID() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_deleteOIDs(ByteStream& msg)
{
OID_t oid;
uint32_t tmp;
int err;
ByteStream reply;
uint32_t size;
std::vector<OID_t> Oids;
OidsMap_t oidsMap;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteOIDs()" << endl;
#endif
msg >> size;
if (printOnly)
cout << "deleteOIDs: size=" << size << endl;
for (unsigned i = 0; i < size; i++)
{
msg >> tmp;
oid = tmp;
oidsMap[oid] = oid;
if (printOnly)
cout << " oid=" << oid << endl;
}
if (printOnly)
return;
err = slave->deleteOIDs(oidsMap);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteOIDs() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Process a request to set the local HWM relative to a specific OID, partition,
// and segment number.
//------------------------------------------------------------------------------
void SlaveComm::do_setLocalHWM(ByteStream& msg)
{
OID_t oid;
HWM_t hwm;
uint32_t partitionNum;
uint16_t segmentNum;
int err;
uint16_t tmp16;
uint32_t tmp32;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM()" << endl;
#endif
msg >> tmp32;
oid = tmp32;
msg >> tmp32;
partitionNum = tmp32;
msg >> tmp16;
segmentNum = tmp16;
msg >> tmp32;
hwm = tmp32;
if (printOnly)
{
cout << "setLocalHWM: oid=" << oid << " partitionNum=" << partitionNum << " segmentNum=" << segmentNum
<< " hwm=" << hwm << endl;
return;
}
err = slave->setLocalHWM(oid, partitionNum, segmentNum, hwm, firstSlave);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_bulkSetHWM(ByteStream& msg)
{
vector<BulkSetHWMArg> args;
int err;
VER_t transID;
uint32_t tmp32;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM()" << endl;
#endif
deserializeInlineVector(msg, args);
msg >> tmp32;
transID = tmp32;
if (printOnly)
{
cout << "bulkSetHWM(). TransID = " << transID << endl;
for (uint32_t i = 0; i < args.size(); i++)
cout << "bulkSetHWM arg " << i + 1 << ": oid=" << args[i].oid << " partitionNum=" << args[i].partNum
<< " segmentNum=" << args[i].segNum << " hwm=" << args[i].hwm << endl;
return;
}
err = slave->bulkSetHWM(args, transID, firstSlave);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_bulkSetHWMAndCP(ByteStream& msg)
{
vector<BulkSetHWMArg> hwmArgs;
vector<CPInfo> setCPDataArgs;
vector<CPInfoMerge> mergeCPDataArgs;
int err;
VER_t transID;
uint32_t tmp32;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM()" << endl;
#endif
deserializeInlineVector(msg, hwmArgs);
deserializeInlineVector(msg, setCPDataArgs);
deserializeInlineVector(msg, mergeCPDataArgs);
msg >> tmp32;
transID = tmp32;
#if 0
if (printOnly)
{
cout << "bulkSetHWM(). TransID = " << transID << endl;
for (uint32_t i = 0; i < args.size(); i++)
cout << "bulkSetHWM arg " << i + 1 << ": oid=" << args[i].oid << " partitionNum=" << args[i].partNum <<
" segmentNum=" << args[i].segNum << " hwm=" << args[i].hwm << endl;
return;
}
#endif
err = slave->bulkSetHWMAndCP(hwmArgs, setCPDataArgs, mergeCPDataArgs, transID, firstSlave);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setLocalHWM() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_bulkUpdateDBRoot(ByteStream& msg)
{
vector<BulkUpdateDBRootArg> args;
ByteStream reply;
int err;
deserializeInlineVector(msg, args);
err = slave->bulkUpdateDBRoot(args);
reply << (uint8_t)err;
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_markInvalid(ByteStream& msg)
{
LBID_t lbid;
uint32_t colDataType;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markInvalid()" << endl;
#endif
msg >> lbid;
msg >> colDataType;
if (printOnly)
{
cout << "markExtentInvalid: lbid=" << lbid << "colDataType=" << colDataType << endl;
return;
}
err = slave->markExtentInvalid(lbid, (execplan::CalpontSystemCatalog::ColDataType)colDataType);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markInvalid() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_markManyExtentsInvalid(ByteStream& msg)
{
uint64_t tmp64;
uint32_t colDataType;
int err;
ByteStream reply;
vector<LBID_t> lbids;
vector<execplan::CalpontSystemCatalog::ColDataType> colDataTypes;
uint32_t size, i;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markManyExtentsInvalid()" << endl;
#endif
msg >> size;
if (printOnly)
cout << "markManyExtentsInvalid: size=" << size << " lbids..." << endl;
for (i = 0; i < size; ++i)
{
msg >> tmp64;
msg >> colDataType;
lbids.push_back(tmp64);
colDataTypes.push_back((execplan::CalpontSystemCatalog::ColDataType)colDataType);
if (printOnly)
cout << " " << tmp64 << " " << colDataType << endl;
}
if (printOnly)
return;
err = slave->markExtentsInvalid(lbids, colDataTypes);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markManyExtentsInvalid() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_setExtentMaxMin(ByteStream& msg)
{
LBID_t lbid;
int64_t max;
int64_t min;
int32_t sequence;
uint64_t tmp64;
uint32_t tmp32;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setExtentMaxMin()" << endl;
#endif
msg >> tmp64;
lbid = tmp64;
msg >> tmp64;
max = tmp64;
msg >> tmp64;
min = tmp64;
msg >> tmp32;
sequence = tmp32;
if (printOnly)
{
cout << "setExtentMaxMin: lbid=" << lbid << " max=" << max << " min=" << min << " sequence=" << sequence
<< endl;
return;
}
err = slave->setExtentMaxMin(lbid, max, min, sequence, firstSlave);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setExtentMaxMin() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
// @bug 1970 - added do_setExtentsMaxMin to set multiple extents CP info.
void SlaveComm::do_setExtentsMaxMin(ByteStream& msg)
{
LBID_t lbid;
uint64_t tmp64;
uint32_t tmp32;
uint8_t tmp8;
uint128_t tmp128;
int err;
ByteStream reply;
int32_t updateCount;
bool isBinaryColumn = false;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setExtentsMaxMin()" << endl;
#endif
msg >> tmp32;
updateCount = tmp32;
CPMaxMinMap_t cpMap;
CPMaxMin cpMaxMin;
if (printOnly)
cout << "setExtentsMaxMin: size=" << updateCount << " CPdata..." << endl;
// Loop through extents and add each one to a map.
for (int64_t i = 0; i < updateCount; i++)
{
msg >> tmp8;
isBinaryColumn = (tmp8 != 0);
msg >> tmp64;
lbid = tmp64;
cpMaxMin.isBinaryColumn = isBinaryColumn;
if (isBinaryColumn)
{
msg >> tmp128;
cpMaxMin.bigMax = tmp128;
msg >> tmp128;
cpMaxMin.bigMin = tmp128;
}
else
{
msg >> tmp64;
cpMaxMin.max = tmp64;
msg >> tmp64;
cpMaxMin.min = tmp64;
}
msg >> tmp32;
cpMaxMin.seqNum = tmp32;
cpMap[lbid] = cpMaxMin;
if (printOnly)
cout << " lbid=" << lbid << " max=" << cpMaxMin.max << " min=" << cpMaxMin.min
<< " sequenceNum=" << cpMaxMin.seqNum << endl;
}
if (printOnly)
return;
err = slave->setExtentsMaxMin(cpMap, firstSlave);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_setExtentsMaxMin() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// @bug 2117 - added do_mergeExtentsMaxMin to merge multiple extents CP info.
//------------------------------------------------------------------------------
void SlaveComm::do_mergeExtentsMaxMin(ByteStream& msg)
{
LBID_t startLbid;
uint64_t tmp64;
uint32_t tmp32;
int err;
ByteStream reply;
int32_t mergeCount;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_mergeExtentsMaxMin()" << endl;
#endif
msg >> tmp32;
mergeCount = tmp32;
CPMaxMinMergeMap_t cpMap;
CPMaxMinMerge cpMaxMin;
if (printOnly)
cout << "mergeExtentsMaxMin: size=" << mergeCount << " CPdata..." << endl;
// Loop through extents and add each one to a map.
for (int64_t i = 0; i < mergeCount; i++)
{
msg >> tmp64;
startLbid = tmp64;
msg >> tmp64;
cpMaxMin.max = tmp64;
msg >> tmp64;
cpMaxMin.min = tmp64;
msg >> tmp32;
cpMaxMin.seqNum = tmp32;
msg >> tmp32;
cpMaxMin.type = (execplan::CalpontSystemCatalog::ColDataType)tmp32;
msg >> tmp32;
cpMaxMin.newExtent = tmp32;
cpMap[startLbid] = cpMaxMin;
if (printOnly)
cout << " startLBID=" << startLbid << " max=" << cpMaxMin.max << " min=" << cpMaxMin.min
<< " sequenceNum=" << cpMaxMin.seqNum << " type=" << (int)cpMaxMin.type
<< " newExtent=" << (int)cpMaxMin.newExtent << endl;
}
if (printOnly)
return;
err = slave->mergeExtentsMaxMin(cpMap);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_mergeExtentsMaxMin() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Delete all extents for the specified OID(s) and partition number.
//------------------------------------------------------------------------------
void SlaveComm::do_deletePartition(ByteStream& msg)
{
OID_t oid;
uint32_t tmp32;
int err;
ByteStream reply;
uint32_t size;
std::set<OID_t> oids;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deletePartition()" << endl;
#endif
set<LogicalPartition> partitionNums;
deserializeSet<LogicalPartition>(msg, partitionNums);
msg >> size;
if (printOnly)
{
cout << "deletePartition: partitionNum: ";
set<LogicalPartition>::const_iterator it;
for (it = partitionNums.begin(); it != partitionNums.end(); ++it)
cout << (*it) << " ";
cout << "\nsize=" << size << " oids..." << endl;
}
for (unsigned i = 0; i < size; i++)
{
msg >> tmp32;
oid = tmp32;
oids.insert(oid);
if (printOnly)
cout << " " << oid << endl;
}
if (printOnly)
return;
string emsg;
err = slave->deletePartition(oids, partitionNums, emsg);
reply << (uint8_t)err;
if (err != 0)
reply << emsg;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deletePartition() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Mark all extents as out of service, for the specified OID(s) and partition
// number.
//------------------------------------------------------------------------------
void SlaveComm::do_markPartitionForDeletion(ByteStream& msg)
{
OID_t oid;
uint32_t tmp32;
int err;
ByteStream reply;
uint32_t size;
std::set<OID_t> oids;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markPartitionForDeletion()" << endl;
#endif
set<LogicalPartition> partitionNums;
deserializeSet<LogicalPartition>(msg, partitionNums);
msg >> size;
if (printOnly)
{
cout << "markPartitionForDeletion: partitionNum: ";
set<LogicalPartition>::const_iterator it;
for (it = partitionNums.begin(); it != partitionNums.end(); ++it)
cout << (*it) << " ";
cout << "\nsize=" << size << " oids..." << endl;
}
for (unsigned i = 0; i < size; i++)
{
msg >> tmp32;
oid = tmp32;
oids.insert(oid);
if (printOnly)
cout << " " << oid << endl;
}
if (printOnly)
return;
string emsg;
err = slave->markPartitionForDeletion(oids, partitionNums, emsg);
reply << (uint8_t)err;
if (err != 0)
reply << emsg;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markPartitionforDeletion() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Mark all extents as out of service, for the specified OID(s) and partition
// number.
//------------------------------------------------------------------------------
void SlaveComm::do_markAllPartitionForDeletion(ByteStream& msg)
{
OID_t oid;
uint32_t tmp32;
int err;
ByteStream reply;
uint32_t size;
std::set<OID_t> oids;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markAllPartitionForDeletion()" << endl;
#endif
msg >> size;
if (printOnly)
cout << "markAllPartitionForDeletion: size=" << size << " oids..." << endl;
for (unsigned i = 0; i < size; i++)
{
msg >> tmp32;
oid = tmp32;
oids.insert(oid);
if (printOnly)
cout << " " << oid << endl;
}
if (printOnly)
return;
err = slave->markAllPartitionForDeletion(oids);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_markAllPartitionforDeletion() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Restore all extents for the specified OID(s) and partition number.
//------------------------------------------------------------------------------
void SlaveComm::do_restorePartition(ByteStream& msg)
{
OID_t oid;
uint32_t tmp32;
int err;
ByteStream reply;
uint32_t size;
std::set<OID_t> oids;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_restorePartition()" << endl;
#endif
set<LogicalPartition> partitionNums;
deserializeSet<LogicalPartition>(msg, partitionNums);
msg >> size;
if (printOnly)
{
cout << "restorePartition: partitionNum: ";
set<LogicalPartition>::const_iterator it;
for (it = partitionNums.begin(); it != partitionNums.end(); ++it)
cout << (*it) << " ";
cout << "\nsize=" << size << " oids..." << endl;
}
for (unsigned i = 0; i < size; i++)
{
msg >> tmp32;
oid = tmp32;
oids.insert(oid);
if (printOnly)
cout << " " << oid << endl;
}
if (printOnly)
return;
string emsg;
err = slave->restorePartition(oids, partitionNums, emsg);
reply << (uint8_t)err;
if (err != 0)
reply << emsg;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_restorePartition() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
//------------------------------------------------------------------------------
// Delete all extents for the specified dbroot
//------------------------------------------------------------------------------
void SlaveComm::do_deleteDBRoot(ByteStream& msg)
{
int err;
ByteStream reply;
uint32_t q;
uint16_t dbroot;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteDBroot()" << endl;
#endif
msg >> q;
dbroot = static_cast<uint16_t>(q);
if (printOnly)
{
cout << "deleteDBRoot: " << dbroot << endl;
return;
}
err = slave->deleteDBRoot(dbroot);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_deleteDBRoot() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_writeVBEntry(ByteStream& msg)
{
VER_t transID;
LBID_t lbid;
OID_t vbOID;
uint32_t vbFBO, tmp;
uint64_t tmp64;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_writeVBEntry()" << endl;
#endif
msg >> tmp;
transID = tmp;
msg >> tmp64;
lbid = tmp64;
msg >> tmp;
vbOID = tmp;
msg >> vbFBO;
if (printOnly)
{
cout << "writeVBEntry: transID=" << transID << " lbid=" << lbid << " vbOID=" << vbOID
<< " vbFBO=" << vbFBO << endl;
return;
}
err = slave->writeVBEntry(transID, lbid, vbOID, vbFBO);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_writeVBEntry() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_bulkWriteVBEntry(ByteStream& msg)
{
VER_t transID;
std::vector<BRM::LBID_t> lbids;
OID_t vbOID;
std::vector<uint32_t> vbFBOs;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_bulkWriteVBEntry()" << endl;
#endif
msg >> tmp;
transID = tmp;
deserializeInlineVector(msg, lbids);
msg >> tmp;
vbOID = tmp;
deserializeInlineVector(msg, vbFBOs);
if (printOnly)
{
cout << "bulkWriteVBEntry: transID=" << transID << endl;
for (size_t i = 0; i < lbids.size(); i++)
cout << "bulkWriteVBEntry arg " << i + 1 << ": lbid=" << lbids[i] << " vbOID=" << vbOID
<< " vbFBO=" << vbFBOs[i] << endl;
return;
}
err = slave->bulkWriteVBEntry(transID, lbids, vbOID, vbFBOs);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_bulkWriteVBEntry() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_beginVBCopy(ByteStream& msg)
{
VER_t transID;
LBIDRange_v ranges;
VBRange_v freeList;
uint32_t tmp32;
uint16_t dbRoot;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_beginVBCopy()" << endl;
#endif
msg >> tmp32;
transID = tmp32;
msg >> dbRoot;
deserializeVector(msg, ranges);
if (printOnly)
{
cout << "beginVBCopy: transID=" << transID << " dbRoot=" << dbRoot << " size=" << ranges.size()
<< " ranges..." << endl;
for (uint32_t i = 0; i < ranges.size(); i++)
cout << " start=" << ranges[i].start << " size=" << ranges[i].size << endl;
return;
}
err = slave->beginVBCopy(transID, dbRoot, ranges, freeList, firstSlave && !standalone);
reply << (uint8_t)err;
if (err == ERR_OK)
serializeVector(reply, freeList);
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_beginVBCopy() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_endVBCopy(ByteStream& msg)
{
VER_t transID;
LBIDRange_v ranges;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_endVBCopy()" << endl;
#endif
msg >> tmp;
transID = tmp;
deserializeVector(msg, ranges);
if (printOnly)
{
cout << "endVBCopy: transID=" << transID << " size=" << ranges.size() << " ranges..." << endl;
for (uint32_t i = 0; i < ranges.size(); i++)
cout << " start=" << ranges[i].start << " size=" << ranges[i].size << endl;
return;
}
err = slave->endVBCopy(transID, ranges);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_endVBCopy() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_vbRollback1(ByteStream& msg)
{
VER_t transID;
LBIDRange_v lbidList;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbRollback1()" << endl;
#endif
msg >> tmp;
transID = tmp;
deserializeVector(msg, lbidList);
if (printOnly)
{
cout << "vbRollback1: transID=" << transID << " size=" << lbidList.size() << " lbids..." << endl;
for (uint32_t i = 0; i < lbidList.size(); i++)
cout << " start=" << lbidList[i].start << " size=" << lbidList[i].size << endl;
return;
}
err = slave->vbRollback(transID, lbidList, firstSlave && !standalone);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbRollback1() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_vbRollback2(ByteStream& msg)
{
VER_t transID;
vector<LBID_t> lbidList;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbRollback2()" << endl;
#endif
msg >> tmp;
transID = tmp;
deserializeVector(msg, lbidList);
if (printOnly)
{
cout << "vbRollback2: transID=" << transID << " size=" << lbidList.size() << " lbids..." << endl;
for (uint32_t i = 0; i < lbidList.size(); i++)
cout << " " << lbidList[i] << endl;
return;
}
err = slave->vbRollback(transID, lbidList, firstSlave && !standalone);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbRollback2() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_vbCommit(ByteStream& msg)
{
VER_t transID;
uint32_t tmp;
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbCommit()" << endl;
#endif
msg >> tmp;
transID = tmp;
if (printOnly)
{
cout << "vbCommit: transID=" << transID << endl;
return;
}
err = slave->vbCommit(transID);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_vbCommit() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_undo()
{
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_undo()" << endl;
#endif
if (printOnly)
{
cout << "undoChanges" << endl;
return;
}
slave->undoChanges();
takeSnapshot = false;
doSaveDelta = false;
}
void SlaveComm::do_confirm()
{
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_confirm()" << endl;
#endif
if (printOnly)
{
cout << "confirmChanges" << endl;
return;
}
if (firstSlave && doSaveDelta && (journalCount < snapshotInterval || snapshotInterval < 0))
{
doSaveDelta = false;
saveDelta();
}
slave->confirmChanges();
string tmp = savefile + "_current";
if (firstSlave && (takeSnapshot || (journalCount >= snapshotInterval && snapshotInterval >= 0)))
{
if (!currentSaveFile)
{
currentSaveFile.reset(
IDBDataFile::open(IDBPolicy::getType(tmp.c_str(), IDBPolicy::WRITEENG), tmp.c_str(), "wb", 0));
}
if (currentSaveFile == NULL)
{
ostringstream os;
os << "WorkerComm: failed to open the current savefile. errno: " << strerror(errno);
log(os.str());
throw runtime_error(os.str());
}
tmp = savefile + (saveFileToggle ? 'A' : 'B');
slave->saveState(tmp);
tmp += '\n';
int err = 0;
// MCOL-1558. Make the _current file relative to DBRMRoot.
string relative = tmp.substr(tmp.find_last_of('/') + 1);
err = currentSaveFile->write(relative.c_str(), relative.length());
if (err < (int)relative.length())
{
ostringstream os;
os << "WorkerComm: currentfile write() returned " << err << " file pointer is "
<< currentSaveFile.get();
if (err < 0)
os << " errno: " << strerror(errno);
log(os.str());
}
currentSaveFile->flush();
currentSaveFile = nullptr;
saveFileToggle = !saveFileToggle;
;
journalh.reset(IDBDataFile::open(IDBPolicy::getType(journalName.c_str(), IDBPolicy::WRITEENG),
journalName.c_str(), "w+b", 0));
if (!journalh)
throw runtime_error("Could not open the BRM journal for writing!");
takeSnapshot = false;
doSaveDelta = false;
journalCount = 0;
}
}
void SlaveComm::do_flushInodeCache()
{
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_flushInodeCache()" << endl;
#endif
if (printOnly)
{
cout << "flushInodeCache" << endl;
return;
}
#ifdef USE_VERY_COMPLEX_DROP_CACHES
double elapsedTime = 0.0;
char msgChString[100];
struct timespec tm1, tm2;
clock_gettime(CLOCK_REALTIME, &tm1);
int fd;
fd = open("/proc/sys/vm/drop_caches", O_WRONLY);
if (fd >= 0)
{
ssize_t writeCnt = write(fd, "3\n", 2);
clock_gettime(CLOCK_REALTIME, &tm2);
timespec_sub(tm1, tm2, elapsedTime);
if (writeCnt == 2)
{
snprintf(msgChString, sizeof(msgChString),
"WorkerNode updating drop_caches to flush cache; "
"elapsedTime-%f sec",
elapsedTime);
log(string(msgChString), logging::LOG_TYPE_DEBUG);
}
else
{
snprintf(msgChString, sizeof(msgChString),
"WorkerNode unable to update drop_caches and flush cache; "
"elapsedTime-%f sec",
elapsedTime);
log_errno(string(msgChString), logging::LOG_TYPE_WARNING);
}
close(fd);
}
else
{
clock_gettime(CLOCK_REALTIME, &tm2);
timespec_sub(tm1, tm2, elapsedTime);
snprintf(msgChString, sizeof(msgChString),
"WorkerNode unable to open drop_caches and flush cache; "
"elapsedTime-%f sec",
elapsedTime);
log_errno(string(msgChString), logging::LOG_TYPE_WARNING);
}
#else
int fd = -1;
if ((fd = open("/proc/sys/vm/drop_caches", O_WRONLY)) >= 0)
{
ssize_t written = write(fd, "3\n", 2);
int rc = close(fd);
if (!written || rc)
{
std::cerr << "Could not write into or close /proc/sys/vm/drop_caches" << std::endl;
}
}
#endif
reply << (uint8_t)ERR_OK;
if (!standalone)
master.write(reply);
}
void SlaveComm::do_clear()
{
int err;
ByteStream reply;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_clear()" << endl;
#endif
if (printOnly)
{
cout << "clear" << endl;
return;
}
err = slave->clear();
if (err)
throw runtime_error("Clear failed.");
/* This doesn't get confirmed, so we have to save its delta here */
if (firstSlave)
saveDelta();
reply << (uint8_t)(err == 0 ? ERR_OK : ERR_FAILURE);
if (!standalone)
master.write(reply);
}
int SlaveComm::replayJournal(string prefix)
{
ByteStream cmd;
uint32_t len;
int ret = 0;
// @Bug 2667+
// Fix for issue where load_brm was using the journal file from DBRMRoot instead of the one from the command
// line argument.
// If A or B files are being loaded, strip off the A or B for the journal file name as there is only one
// journal file. For example, if prefix is
// "/usr/local/mariadb/columnstore/data1/systemFiles/dbrm/BRM_savesA" the journal file name will be
// "/usr/local/mariadb/columnstore/data1/systemFiles/dbrm/BRM_saves_journal".
string tmp = prefix.substr(prefix.length() - 1);
string fName;
if ((tmp.compare("A") == 0) || (tmp.compare("B") == 0))
{
fName = prefix.substr(0, prefix.length() - 1) + "_journal";
}
else
{
fName = prefix + "_journal";
}
const char* filename = fName.c_str();
std::unique_ptr<IDBDataFile> journalf =
std::unique_ptr<IDBDataFile>(IDBDataFile::open(IDBPolicy::getType(filename, IDBPolicy::WRITEENG), filename, "rb", 0));
if (!journalf)
{
cout << "Error opening journal file " << fName << endl;
return -1;
}
if (journalf->size() == 0) // empty file, nothing to replay
return 0;
ssize_t readIn = 0;
do
{
readIn = journalf->read((char*)&len, sizeof(len));
if (readIn > 0)
{
cmd.needAtLeast(len);
readIn = journalf->read((char*)cmd.getInputPtr(), len);
cmd.advanceInputPtr(len);
try
{
processCommand(cmd);
}
catch (exception& e)
{
cout << e.what() << " Journal replay was incomplete." << endl;
slave->undoChanges();
return -1;
}
slave->confirmChanges();
cmd.restart();
ret++;
}
} while (readIn > 0);
return ret;
}
void SlaveComm::do_takeSnapshot()
{
ByteStream reply;
if (printOnly)
{
cout << "takeSnapshot" << endl;
return;
}
takeSnapshot = true;
do_confirm();
reply << (uint8_t)0;
if (!standalone)
master.write(reply);
}
void SlaveComm::saveDelta()
{
try
{
// !!!
// !!! Reducing BS size type from 64bit down to 32 and potentially loosing data.
// !!!
const uint32_t deltaLen = delta.length();
const uint32_t bufferSize = sizeof(deltaLen) + deltaLen;
std::unique_ptr<char[]> buffer(new char[bufferSize]);
uint32_t offset = 0;
std::memcpy(&buffer[offset], (char*)&deltaLen, sizeof(deltaLen));
offset += sizeof(deltaLen);
std::memcpy(&buffer[offset], (char*)delta.buf(), deltaLen);
journalh->seek(0, SEEK_END);
journalh->write((const char*)buffer.get(), bufferSize);
journalh->flush();
journalCount++;
}
catch (exception& e)
{
cerr << "Journal write error: " << e.what() << endl;
throw;
}
}
int SlaveComm::printJournal(string prefix)
{
int ret;
printOnly = true;
ret = replayJournal(prefix);
printOnly = false;
return ret;
}
void SlaveComm::do_ownerCheck(ByteStream& msg)
{
string processName;
uint32_t pid;
ByteStream::byte rb = 0;
msg >> processName >> pid;
idbassert(msg.length() == 0);
if (standalone)
return;
if (processExists(pid, processName))
rb++;
ByteStream reply;
reply << rb;
master.write(reply);
}
bool SlaveComm::processExists(const uint32_t pid, const string& pname)
{
string stat;
ostringstream procFileName;
ostringstream statProcessField;
ifstream in;
string::size_type pos;
ByteStream reply;
char buf[2048];
procFileName << "/proc/" << pid << "/stat";
in.open(procFileName.str().c_str());
if (!in)
{
return false;
}
statProcessField << "(" << pname << ")";
in.getline(buf, 1024);
stat = buf;
pos = stat.find(statProcessField.str());
if (pos == string::npos)
{
return false;
}
return true;
}
void SlaveComm::do_dmlLockLBIDRanges(ByteStream& msg)
{
ByteStream reply;
vector<LBIDRange> ranges;
int txnID;
uint32_t tmp32;
int err;
deserializeVector<LBIDRange>(msg, ranges);
msg >> tmp32;
assert(msg.length() == 0);
txnID = (int)tmp32;
if (printOnly)
{
cout << "dmlLockLBIDRanges: transID=" << txnID << " size=" << ranges.size() << " ranges..." << endl;
for (uint32_t i = 0; i < ranges.size(); i++)
cout << " start=" << ranges[i].start << " size=" << ranges[i].size << endl;
return;
}
err = slave->dmlLockLBIDRanges(ranges, txnID);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_dmlLockLBIDRanges() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
void SlaveComm::do_dmlReleaseLBIDRanges(ByteStream& msg)
{
ByteStream reply;
vector<LBIDRange> ranges;
int err;
deserializeVector<LBIDRange>(msg, ranges);
if (printOnly)
{
cout << "dmlLockLBIDRanges: size=" << ranges.size() << " ranges..." << endl;
for (uint32_t i = 0; i < ranges.size(); i++)
cout << " start=" << ranges[i].start << " size=" << ranges[i].size << endl;
return;
}
err = slave->dmlReleaseLBIDRanges(ranges);
reply << (uint8_t)err;
#ifdef BRM_VERBOSE
cerr << "WorkerComm: do_dmlReleaseLBIDRanges() err code is " << err << endl;
#endif
if (!standalone)
master.write(reply);
doSaveDelta = true;
}
} // namespace BRM
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