static void run_master_update(struct Xxx &xxx, struct XxxR &xxxr)
{
Ndb *ndb = xxx.ndb;
const NdbDictionary::Table *myTable = xxx.table;
int retry_sleep= 10; /* 10 milliseconds */
int retries= 100;
while (1)
{
Uint32 val;
NdbTransaction *trans = ndb->startTransaction();
if (trans == NULL)
goto err;
{
NdbOperation *op = trans->getNdbOperation(myTable);
if (op == NULL)
APIERROR(trans->getNdbError());
op->readTupleExclusive();
op->equal(xxx.pk_col, xxxr.pk_val);
op->getValue(xxx.col, (char *)&val);
}
if (trans->execute(NdbTransaction::NoCommit))
goto err;
//fprintf(stderr, "read %u\n", val);
xxxr.val = val + 1;
{
NdbOperation *op = trans->getNdbOperation(myTable);
if (op == NULL)
APIERROR(trans->getNdbError());
op->updateTuple();
op->equal(xxx.pk_col, xxxr.pk_val);
op->setValue(xxx.col, xxxr.val);
}
if (trans->execute(NdbTransaction::Commit))
goto err;
ndb->closeTransaction(trans);
//fprintf(stderr, "updated to %u\n", xxxr.val);
break;
err:
const NdbError this_error= trans ?
trans->getNdbError() : ndb->getNdbError();
if (this_error.status == NdbError::TemporaryError)
{
if (retries--)
{
if (trans)
ndb->closeTransaction(trans);
NdbSleep_MilliSleep(retry_sleep);
continue; // retry
}
}
if (trans)
ndb->closeTransaction(trans);
APIERROR(this_error);
}
/* update done start timer */
gettimeofday(&xxxr.start_time, 0);
}
static int
checkorphan(const Blob&b, int& res)
{
int ret = 0;
NdbTransaction* tx = 0;
NdbOperation* op = 0;
do
{
tx = g_ndb->startTransaction();
CHK2(tx != 0, g_ndb->getNdbError());
op = tx->getNdbOperation(g_tab);
CHK2(op != 0, tx->getNdbError());
const NdbOperation::LockMode lm = NdbOperation::LM_Read;
CHK2(op->readTuple(lm) == 0, op->getNdbError());
for (int i = 0; i < g_pkcount; i++)
{
Val& v = g_vallist[i];
assert(v.ra != 0);
assert(v.ra->isNULL() == 0);
const char* data = v.ra->aRef();
CHK2(op->equal(v.colname, data) == 0, op->getNdbError());
}
CHK1(ret == 0);
// read something to be safe
NdbRecAttr* ra0 = op->getValue(g_vallist[0].colname);
assert(ra0 != 0);
// not sure about the rules
assert(tx->getNdbError().code == 0);
tx->execute(Commit);
if (tx->getNdbError().code == 626)
{
g_info << "parent not found" << endl;
res = 1; // not found
}
else
{
CHK2(tx->getNdbError().code == 0, tx->getNdbError());
res = 0; // found
}
}
while (0);
if (tx != 0)
g_ndb->closeTransaction(tx);
return ret;
}
//
// Execute function which re-executes (tries 10 times) the transaction
// if there are temporary errors (e.g. the NDB Cluster is overloaded).
// @return -1 failure, 1 success
//
int executeInsertTransaction(int transactionId, Ndb* myNdb,
const NdbDictionary::Table *myTable) {
int result = 0; // No result yet
int noOfRetriesLeft = 10;
NdbTransaction *myTransaction; // For other transactions
NdbError ndberror;
while (noOfRetriesLeft > 0 && !result) {
/*********************************
* Start and execute transaction *
*********************************/
myTransaction = myNdb->startTransaction();
if (myTransaction == NULL) {
APIERROR(myNdb->getNdbError());
ndberror = myNdb->getNdbError();
result = -1; // Failure
} else if (insert(transactionId, myTransaction, myTable) ||
insert(10000+transactionId, myTransaction, myTable) ||
myTransaction->execute(NdbTransaction::Commit)) {
TRANSERROR(myTransaction);
ndberror = myTransaction->getNdbError();
result = -1; // Failure
} else {
result = 1; // Success
}
/**********************************
* If failure, then analyze error *
**********************************/
if (result == -1) {
switch (ndberror.status) {
case NdbError::Success:
break;
case NdbError::TemporaryError:
std::cout << "Retrying transaction..." << std::endl;
sleep(TIME_TO_SLEEP_BETWEEN_TRANSACTION_RETRIES);
--noOfRetriesLeft;
result = 0; // No completed transaction yet
break;
case NdbError::UnknownResult:
case NdbError::PermanentError:
std::cout << "No retry of transaction..." << std::endl;
result = -1; // Permanent failure
break;
}
}
/*********************
* Close transaction *
*********************/
if (myTransaction != NULL) {
myNdb->closeTransaction(myTransaction);
}
}
if (result != 1) exit(-1);
return result;
}
static int
deleteorphan(const Blob& b)
{
int ret = 0;
NdbTransaction* tx = 0;
do
{
tx = g_ndb->startTransaction();
CHK2(tx != 0, g_ndb->getNdbError());
CHK2(g_scanop->deleteCurrentTuple(tx) == 0, g_scanop->getNdbError());
CHK2(tx->execute(Commit) == 0, tx->getNdbError());
}
while (0);
if (tx != 0)
g_ndb->closeTransaction(tx);
return ret;
}
void
BackupRestore::tuple(const TupleS & tup)
{
if (!m_restore)
return;
while (1)
{
NdbTransaction * trans = m_ndb->startTransaction();
if (trans == NULL)
{
// TODO: handle the error
ndbout << "Cannot start transaction" << endl;
exit(-1);
} // if
const TableS * table = tup.getTable();
NdbOperation * op = trans->getNdbOperation(table->getTableName());
if (op == NULL)
{
ndbout << "Cannot get operation: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
} // if
// TODO: check return value and handle error
if (op->writeTuple() == -1)
{
ndbout << "writeTuple call failed: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
} // if
for (int i = 0; i < tup.getNoOfAttributes(); i++)
{
const AttributeS * attr = tup[i];
int size = attr->Desc->size;
int arraySize = attr->Desc->arraySize;
const char * dataPtr = attr->Data.string_value;
const Uint32 length = (size * arraySize) / 8;
if (attr->Desc->m_column->getPrimaryKey())
op->equal(i, dataPtr, length);
}
for (int i = 0; i < tup.getNoOfAttributes(); i++)
{
const AttributeS * attr = tup[i];
int size = attr->Desc->size;
int arraySize = attr->Desc->arraySize;
const char * dataPtr = attr->Data.string_value;
const Uint32 length = (size * arraySize) / 8;
if (!attr->Desc->m_column->getPrimaryKey())
if (attr->Data.null)
op->setValue(i, NULL, 0);
else
op->setValue(i, dataPtr, length);
}
int ret = trans->execute(Commit);
if (ret != 0)
{
ndbout << "execute failed: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
}
m_ndb->closeTransaction(trans);
if (ret == 0)
break;
}
m_dataCount++;
}
static void run_slave_wait(struct Xxx &xxx, struct XxxR &xxxr)
{
struct timeval old_end_time = xxxr.start_time, end_time;
Ndb *ndb = xxx.ndb;
const NdbDictionary::Table *myTable = xxx.table;
int retry_sleep= 10; /* 10 milliseconds */
int retries= 100;
while (1)
{
Uint32 val;
NdbTransaction *trans = ndb->startTransaction();
if (trans == NULL)
goto err;
{
NdbOperation *op = trans->getNdbOperation(myTable);
if (op == NULL)
APIERROR(trans->getNdbError());
op->readTuple();
op->equal(xxx.pk_col, xxxr.pk_val);
op->getValue(xxx.col, (char *)&val);
if (trans->execute(NdbTransaction::Commit))
goto err;
}
/* read done, check time of read */
gettimeofday(&end_time, 0);
ndb->closeTransaction(trans);
//fprintf(stderr, "read %u waiting for %u\n", val, xxxr.val);
if (xxxr.val != val)
{
/* expected value not received yet */
retries = 100;
NdbSleep_MilliSleep(retry_sleep);
old_end_time = end_time;
continue;
}
break;
err:
const NdbError this_error= trans ?
trans->getNdbError() : ndb->getNdbError();
if (this_error.status == NdbError::TemporaryError)
{
if (retries--)
{
if (trans)
ndb->closeTransaction(trans);
NdbSleep_MilliSleep(retry_sleep);
continue; // retry
}
}
if (trans)
ndb->closeTransaction(trans);
APIERROR(this_error);
}
Int64 elapsed_usec1 =
((Int64)end_time.tv_sec - (Int64)xxxr.start_time.tv_sec)*1000*1000 +
((Int64)end_time.tv_usec - (Int64)xxxr.start_time.tv_usec);
Int64 elapsed_usec2 =
((Int64)end_time.tv_sec - (Int64)old_end_time.tv_sec)*1000*1000 +
((Int64)end_time.tv_usec - (Int64)old_end_time.tv_usec);
xxxr.latency =
((elapsed_usec1 - elapsed_usec2/2)+999)/1000;
}
int scanReadRecords(Ndb* pNdb,
const NdbDictionary::Table* pTab,
const NdbDictionary::Index* pIdx,
int parallel,
int _lock,
bool headers,
bool useHexFormat,
char delimiter, bool order, bool descending) {
int retryAttempt = 0;
const int retryMax = 100;
int check;
NdbTransaction *pTrans;
NdbScanOperation *pOp;
NdbIndexScanOperation * pIOp= 0;
NDBT_ResultRow * row = new NDBT_ResultRow(*pTab, delimiter);
while (true) {
if (retryAttempt >= retryMax) {
ndbout << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << endl;
return -1;
}
pTrans = pNdb->startTransaction();
if (pTrans == NULL) {
const NdbError err = pNdb->getNdbError();
if (err.status == NdbError::TemporaryError) {
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
return -1;
}
pOp = (!pIdx) ? pTrans->getNdbScanOperation(pTab->getName()) :
pIOp=pTrans->getNdbIndexScanOperation(pIdx->getName(), pTab->getName());
if (pOp == NULL) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return -1;
}
int rs;
unsigned scan_flags = 0;
if (_tup) scan_flags |= NdbScanOperation::SF_TupScan;
switch(_lock + (3 * order)) {
case 1:
rs = pOp->readTuples(NdbScanOperation::LM_Read, scan_flags, parallel);
break;
case 2:
rs = pOp->readTuples(NdbScanOperation::LM_Exclusive, scan_flags, parallel);
break;
case 3:
rs = pIOp->readTuples(NdbScanOperation::LM_CommittedRead, 0, parallel,
true, descending);
break;
case 4:
rs = pIOp->readTuples(NdbScanOperation::LM_Read, 0, parallel, true, descending);
break;
case 5:
rs = pIOp->readTuples(NdbScanOperation::LM_Exclusive, 0, parallel, true, descending);
break;
case 0:
default:
rs = pOp->readTuples(NdbScanOperation::LM_CommittedRead, scan_flags, parallel);
break;
}
if( rs != 0 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return -1;
}
if(0) {
NdbScanFilter sf(pOp);
#if 0
sf.begin(NdbScanFilter::AND);
sf.le(0, (Uint32)10);
sf.end();
#elif 0
sf.begin(NdbScanFilter::OR);
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)10);
sf.lt(0, (Uint32)20);
sf.end();
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)30);
sf.lt(0, (Uint32)40);
sf.end();
sf.end();
#elif 1
sf.begin(NdbScanFilter::AND);
sf.begin(NdbScanFilter::OR);
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)10);
sf.lt(0, (Uint32)20);
sf.end();
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)30);
sf.lt(0, (Uint32)40);
sf.end();
sf.end();
sf.begin(NdbScanFilter::OR);
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)0);
sf.lt(0, (Uint32)50);
sf.end();
sf.begin(NdbScanFilter::AND);
sf.ge(0, (Uint32)100);
sf.lt(0, (Uint32)200);
sf.end();
sf.end();
sf.end();
#endif
} else {
check = pOp->interpret_exit_ok();
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return -1;
}
}
bool disk= false;
for(int a = 0; a<pTab->getNoOfColumns(); a++)
{
const NdbDictionary::Column* col = pTab->getColumn(a);
if(col->getStorageType() == NdbDictionary::Column::StorageTypeDisk)
disk= true;
if (!nodata)
if((row->attributeStore(a) = pOp->getValue(col)) == 0)
{
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return -1;
}
}
NdbRecAttr * disk_ref= 0;
if(_dumpDisk && disk)
disk_ref = pOp->getValue(NdbDictionary::Column::DISK_REF);
NdbRecAttr * rowid= 0, *frag = 0, *gci = 0;
if (use_rowid)
{
frag = pOp->getValue(NdbDictionary::Column::FRAGMENT);
rowid = pOp->getValue(NdbDictionary::Column::ROWID);
}
if (use_gci)
{
gci = pOp->getValue(NdbDictionary::Column::ROW_GCI);
}
check = pTrans->execute(NdbTransaction::NoCommit);
if( check == -1 ) {
const NdbError err = pTrans->getNdbError();
if (err.status == NdbError::TemporaryError) {
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
pNdb->closeTransaction(pTrans);
return -1;
}
if (rowid)
ndbout << "ROWID\t";
if (gci)
ndbout << "\tGCI";
if (headers && !nodata)
row->header(ndbout);
if (disk_ref)
ndbout << "\tDISK_REF";
ndbout << endl;
int eof;
int rows = 0;
eof = pOp->nextResult();
while(eof == 0) {
rows++;
if (useHexFormat)
ndbout.setHexFormat(1);
if (rowid)
{
ndbout << "[ fragment: " << frag->u_32_value()
<< " m_page: " << rowid->u_32_value()
<< " m_page_idx: " << *(Uint32*)(rowid->aRef() + 4) << " ]";
ndbout << "\t";
}
if (gci)
{
if (gci->isNULL())
ndbout << "NULL\t";
else
ndbout << gci->u_64_value() << "\t";
}
if (!nodata)
ndbout << (*row);
if(disk_ref)
{
ndbout << "\t";
ndbout << "[ m_file_no: " << *(Uint16*)(disk_ref->aRef()+6)
<< " m_page: " << disk_ref->u_32_value()
<< " m_page_idx: " << *(Uint16*)(disk_ref->aRef() + 4) << " ]";
}
if (rowid || disk_ref || gci || !nodata)
ndbout << endl;
eof = pOp->nextResult();
}
if (eof == -1) {
const NdbError err = pTrans->getNdbError();
if (err.status == NdbError::TemporaryError) {
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
pNdb->closeTransaction(pTrans);
return -1;
}
pNdb->closeTransaction(pTrans);
ndbout << rows << " rows returned" << endl;
return 0;
}
return -1;
}
int
NdbIndexStat::records_in_range(const NdbDictionary::Index* index, NdbIndexScanOperation* op, Uint64 table_rows, Uint64* count, int flags)
{
DBUG_ENTER("NdbIndexStat::records_in_range");
Uint64 rows;
Uint32 key1[1000], keylen1;
Uint32 key2[1000], keylen2;
if (m_cache == NULL)
flags |= RR_UseDb | RR_NoUpdate;
else if (m_area[0].m_entries == 0 || m_area[1].m_entries == 0)
flags |= RR_UseDb;
if ((flags & (RR_UseDb | RR_NoUpdate)) != RR_UseDb | RR_NoUpdate) {
// get start and end key - assume bound is ordered, wellformed
Uint32 bound[1000];
Uint32 boundlen = op->getKeyFromSCANTABREQ(bound, 1000);
keylen1 = keylen2 = 0;
Uint32 n = 0;
while (n < boundlen) {
Uint32 t = bound[n];
AttributeHeader ah(bound[n + 1]);
Uint32 sz = 2 + ah.getDataSize();
t &= 0xFFFF; // may contain length
assert(t <= 4);
bound[n] = t;
if (t == 0 || t == 1 || t == 4) {
memcpy(&key1[keylen1], &bound[n], sz << 2);
keylen1 += sz;
}
if (t == 2 || t == 3 || t == 4) {
memcpy(&key2[keylen2], &bound[n], sz << 2);
keylen2 += sz;
}
n += sz;
}
}
if (flags & RR_UseDb) {
Uint32 out[4] = { 0, 0, 0, 0 }; // rows, in, before, after
float tot[4] = { 0, 0, 0, 0 }; // totals of above
int cnt, ret;
bool forceSend = true;
NdbTransaction* trans = op->m_transConnection;
if (op->interpret_exit_last_row() == -1 ||
op->getValue(NdbDictionary::Column::RECORDS_IN_RANGE, (char*)out) == 0) {
m_error = op->getNdbError();
DBUG_PRINT("error", ("op:%d", op->getNdbError().code));
DBUG_RETURN(-1);
}
if (trans->execute(NdbTransaction::NoCommit,
NdbOperation::AbortOnError, forceSend) == -1) {
m_error = trans->getNdbError();
DBUG_PRINT("error", ("trans:%d op:%d", trans->getNdbError().code,
op->getNdbError().code));
DBUG_RETURN(-1);
}
cnt = 0;
while ((ret = op->nextResult(true, forceSend)) == 0) {
DBUG_PRINT("info", ("frag rows=%u in=%u before=%u after=%u [error=%d]",
out[0], out[1], out[2], out[3],
(int)(out[1] + out[2] + out[3]) - (int)out[0]));
unsigned i;
for (i = 0; i < 4; i++)
tot[i] += (float)out[i];
cnt++;
}
if (ret == -1) {
m_error = op->getNdbError();
DBUG_PRINT("error", ("trans:%d op:%d", trans->getNdbError().code,
op->getNdbError().code));
DBUG_RETURN(-1);
}
op->close(forceSend);
rows = (Uint64)tot[1];
if (cnt != 0 && ! (flags & RR_NoUpdate)) {
float pct[2];
pct[0] = 100 * tot[2] / tot[0];
pct[1] = 100 * tot[3] / tot[0];
DBUG_PRINT("info", ("update stat pct"
" before=%.2f after=%.2f",
pct[0], pct[1]));
stat_update(key1, keylen1, key2, keylen2, pct);
}
} else {
float pct[2];
stat_select(key1, keylen1, key2, keylen2, pct);
float diff = 100.0 - (pct[0] + pct[1]);
float trows = (float)table_rows;
DBUG_PRINT("info", ("select stat pct"
" before=%.2f after=%.2f in=%.2f table_rows=%.2f",
pct[0], pct[1], diff, trows));
rows = 0;
if (diff >= 0)
rows = (Uint64)(diff * trows / 100);
if (rows == 0)
rows = 1;
}
*count = rows;
DBUG_PRINT("value", ("rows=%llu flags=%o", rows, flags));
DBUG_RETURN(0);
}
int scan_print(Ndb * myNdb)
{
// Scan all records exclusive and update
// them one by one
int retryAttempt = 0;
const int retryMax = 10;
int fetchedRows = 0;
int check;
NdbError err;
NdbTransaction *myTrans;
NdbScanOperation *myScanOp;
/* Result of reading attribute value, three columns:
REG_NO, BRAND, and COLOR
*/
NdbRecAttr * myRecAttr[3];
const NdbDictionary::Dictionary* myDict= myNdb->getDictionary();
const NdbDictionary::Table *myTable= myDict->getTable("api_scan");
if (myTable == NULL)
APIERROR(myDict->getNdbError());
/**
* Loop as long as :
* retryMax not reached
* failed operations due to TEMPORARY erros
*
* Exit loop;
* retyrMax reached
* Permanent error (return -1)
*/
while (true)
{
if (retryAttempt >= retryMax)
{
std::cout << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << std::endl;
return -1;
}
myTrans = myNdb->startTransaction();
if (myTrans == NULL)
{
const NdbError err = myNdb->getNdbError();
if (err.status == NdbError::TemporaryError)
{
milliSleep(50);
retryAttempt++;
continue;
}
std::cout << err.message << std::endl;
return -1;
}
/*
* Define a scan operation.
* NDBAPI.
*/
myScanOp = myTrans->getNdbScanOperation(myTable);
if (myScanOp == NULL)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Read without locks, without being placed in lock queue
*/
if( myScanOp->readTuples(NdbOperation::LM_CommittedRead) == -1)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Define storage for fetched attributes.
* E.g., the resulting attributes of executing
* myOp->getValue("REG_NO") is placed in myRecAttr[0].
* No data exists in myRecAttr until transaction has commited!
*/
myRecAttr[0] = myScanOp->getValue("REG_NO");
myRecAttr[1] = myScanOp->getValue("BRAND");
myRecAttr[2] = myScanOp->getValue("COLOR");
if(myRecAttr[0] ==NULL || myRecAttr[1] == NULL || myRecAttr[2]==NULL)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Start scan (NoCommit since we are only reading at this stage);
*/
if(myTrans->execute(NdbTransaction::NoCommit) != 0){
err = myTrans->getNdbError();
if(err.status == NdbError::TemporaryError){
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
milliSleep(50);
continue;
}
std::cout << err.code << std::endl;
std::cout << myTrans->getNdbError().code << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* start of loop: nextResult(true) means that "parallelism" number of
* rows are fetched from NDB and cached in NDBAPI
*/
while((check = myScanOp->nextResult(true)) == 0){
do {
fetchedRows++;
/**
* print REG_NO unsigned int
*/
std::cout << myRecAttr[0]->u_32_value() << "\t";
/**
* print BRAND character string
*/
std::cout << myRecAttr[1]->aRef() << "\t";
/**
* print COLOR character string
*/
std::cout << myRecAttr[2]->aRef() << std::endl;
/**
* nextResult(false) means that the records
* cached in the NDBAPI are modified before
* fetching more rows from NDB.
*/
} while((check = myScanOp->nextResult(false)) == 0);
}
myNdb->closeTransaction(myTrans);
return 1;
}
return -1;
}
int scan_update(Ndb* myNdb,
int update_column,
const char * before_color,
const char * after_color)
{
// Scan all records exclusive and update
// them one by one
int retryAttempt = 0;
const int retryMax = 10;
int updatedRows = 0;
int check;
NdbError err;
NdbTransaction *myTrans;
NdbScanOperation *myScanOp;
const NdbDictionary::Dictionary* myDict= myNdb->getDictionary();
const NdbDictionary::Table *myTable= myDict->getTable("api_scan");
if (myTable == NULL)
APIERROR(myDict->getNdbError());
/**
* Loop as long as :
* retryMax not reached
* failed operations due to TEMPORARY erros
*
* Exit loop;
* retryMax reached
* Permanent error (return -1)
*/
while (true)
{
if (retryAttempt >= retryMax)
{
std::cout << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << std::endl;
return -1;
}
myTrans = myNdb->startTransaction();
if (myTrans == NULL)
{
const NdbError err = myNdb->getNdbError();
if (err.status == NdbError::TemporaryError)
{
milliSleep(50);
retryAttempt++;
continue;
}
std::cout << err.message << std::endl;
return -1;
}
/**
* Get a scan operation.
*/
myScanOp = myTrans->getNdbScanOperation(myTable);
if (myScanOp == NULL)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Define a result set for the scan.
*/
if( myScanOp->readTuples(NdbOperation::LM_Exclusive) )
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Use NdbScanFilter to define a search critera
*/
NdbScanFilter filter(myScanOp) ;
if(filter.begin(NdbScanFilter::AND) < 0 ||
filter.cmp(NdbScanFilter::COND_EQ, update_column, before_color, 20) <0||
filter.end() <0)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* Start scan (NoCommit since we are only reading at this stage);
*/
if(myTrans->execute(NdbTransaction::NoCommit) != 0)
{
err = myTrans->getNdbError();
if(err.status == NdbError::TemporaryError){
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
milliSleep(50);
continue;
}
std::cout << myTrans->getNdbError().code << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
/**
* start of loop: nextResult(true) means that "parallelism" number of
* rows are fetched from NDB and cached in NDBAPI
*/
while((check = myScanOp->nextResult(true)) == 0){
do {
/**
* Get update operation
*/
NdbOperation * myUpdateOp = myScanOp->updateCurrentTuple();
if (myUpdateOp == 0)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return -1;
}
updatedRows++;
/**
* do the update
*/
myUpdateOp->setValue(update_column, after_color);
/**
* nextResult(false) means that the records
* cached in the NDBAPI are modified before
* fetching more rows from NDB.
*/
} while((check = myScanOp->nextResult(false)) == 0);
/**
* NoCommit when all cached tuple have been updated
*/
if(check != -1)
{
check = myTrans->execute(NdbTransaction::NoCommit);
}
/**
* Check for errors
*/
err = myTrans->getNdbError();
if(check == -1)
{
if(err.status == NdbError::TemporaryError){
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
milliSleep(50);
continue;
}
}
/**
* End of loop
*/
}
/**
* Commit all prepared operations
*/
if(myTrans->execute(NdbTransaction::Commit) == -1)
{
if(err.status == NdbError::TemporaryError){
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
milliSleep(50);
continue;
}
}
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
return 0;
}
if(myTrans!=0)
{
std::cout << myTrans->getNdbError().message << std::endl;
myNdb->closeTransaction(myTrans);
}
return -1;
}
int populate(Ndb * myNdb)
{
int i;
Car cars[15];
const NdbDictionary::Dictionary* myDict= myNdb->getDictionary();
const NdbDictionary::Table *myTable= myDict->getTable("api_scan");
if (myTable == NULL)
APIERROR(myDict->getNdbError());
/**
* Five blue mercedes
*/
for (i = 0; i < 5; i++)
{
cars[i].reg_no = i;
sprintf(cars[i].brand, "Mercedes");
sprintf(cars[i].color, "Blue");
}
/**
* Five black bmw
*/
for (i = 5; i < 10; i++)
{
cars[i].reg_no = i;
sprintf(cars[i].brand, "BMW");
sprintf(cars[i].color, "Black");
}
/**
* Five pink toyotas
*/
for (i = 10; i < 15; i++)
{
cars[i].reg_no = i;
sprintf(cars[i].brand, "Toyota");
sprintf(cars[i].color, "Pink");
}
NdbTransaction* myTrans = myNdb->startTransaction();
if (myTrans == NULL)
APIERROR(myNdb->getNdbError());
for (i = 0; i < 15; i++)
{
NdbOperation* myNdbOperation = myTrans->getNdbOperation(myTable);
if (myNdbOperation == NULL)
APIERROR(myTrans->getNdbError());
myNdbOperation->insertTuple();
myNdbOperation->equal("REG_NO", cars[i].reg_no);
myNdbOperation->setValue("BRAND", cars[i].brand);
myNdbOperation->setValue("COLOR", cars[i].color);
}
int check = myTrans->execute(NdbTransaction::Commit);
myTrans->close();
return check != -1;
}
void
BackupRestore::logEntry(const LogEntry & tup)
{
if (!m_restore)
return;
NdbTransaction * trans = m_ndb->startTransaction();
if (trans == NULL)
{
// TODO: handle the error
ndbout << "Cannot start transaction" << endl;
exit(-1);
} // if
const TableS * table = tup.m_table;
NdbOperation * op = trans->getNdbOperation(table->getTableName());
if (op == NULL)
{
ndbout << "Cannot get operation: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
} // if
int check = 0;
switch(tup.m_type)
{
case LogEntry::LE_INSERT:
check = op->insertTuple();
break;
case LogEntry::LE_UPDATE:
check = op->updateTuple();
break;
case LogEntry::LE_DELETE:
check = op->deleteTuple();
break;
default:
ndbout << "Log entry has wrong operation type."
<< " Exiting...";
exit(-1);
}
for (int i = 0; i < tup.m_values.size(); i++)
{
const AttributeS * attr = tup.m_values[i];
int size = attr->Desc->size;
int arraySize = attr->Desc->arraySize;
const char * dataPtr = attr->Data.string_value;
const Uint32 length = (size / 8) * arraySize;
if (attr->Desc->m_column->getPrimaryKey())
op->equal(attr->Desc->attrId, dataPtr, length);
else
op->setValue(attr->Desc->attrId, dataPtr, length);
}
#if 1
trans->execute(Commit);
#else
const int ret = trans->execute(Commit);
// Both insert update and delete can fail during log running
// and it's ok
if (ret != 0)
{
ndbout << "execute failed: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
}
#endif
m_ndb->closeTransaction(trans);
m_logCount++;
}
int
select_count(Ndb* pNdb, const NdbDictionary::Table* pTab,
int parallelism,
Uint64* count_rows,
NdbOperation::LockMode lock) {
int retryAttempt = 0;
const int retryMax = 100;
int check;
NdbTransaction *pTrans;
NdbScanOperation *pOp;
const Uint32 codeWords= 1;
Uint32 codeSpace[ codeWords ];
NdbInterpretedCode code(NULL, // Table is irrelevant
&codeSpace[0],
codeWords);
if ((code.interpret_exit_last_row() != 0) ||
(code.finalise() != 0))
{
ERR(code.getNdbError());
return NDBT_FAILED;
}
while (true) {
if (retryAttempt >= retryMax) {
g_info << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << endl;
return NDBT_FAILED;
}
pTrans = pNdb->startTransaction();
if (pTrans == NULL) {
const NdbError err = pNdb->getNdbError();
if (err.status == NdbError::TemporaryError) {
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
return NDBT_FAILED;
}
pOp = pTrans->getNdbScanOperation(pTab->getName());
if (pOp == NULL) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
if( pOp->readTuples(NdbScanOperation::LM_Dirty) ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
check = pOp->setInterpretedCode(&code);
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
Uint64 tmp;
Uint32 row_size;
pOp->getValue(NdbDictionary::Column::ROW_COUNT, (char*)&tmp);
pOp->getValue(NdbDictionary::Column::ROW_SIZE, (char*)&row_size);
check = pTrans->execute(NdbTransaction::NoCommit);
if( check == -1 ) {
ERR(pTrans->getNdbError());
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
Uint64 row_count = 0;
int eof;
while((eof = pOp->nextResult(true)) == 0) {
row_count += tmp;
}
if (eof == -1) {
const NdbError err = pTrans->getNdbError();
if (err.status == NdbError::TemporaryError) {
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
retryAttempt++;
continue;
}
ERR(err);
pNdb->closeTransaction(pTrans);
return NDBT_FAILED;
}
pNdb->closeTransaction(pTrans);
if (count_rows != NULL) {
*count_rows = row_count;
}
return NDBT_OK;
}
return NDBT_FAILED;
}
int clear_table(Ndb* pNdb, const NdbDictionary::Table* pTab,
bool fetch_across_commit, int parallelism)
{
// Scan all records exclusive and delete
// them one by one
int retryAttempt = 0;
const int retryMax = 10;
int deletedRows = 0;
int check;
NdbTransaction *pTrans;
NdbScanOperation *pOp;
NdbError err;
int par = parallelism;
while (true){
restart:
if (retryAttempt++ >= retryMax){
g_info << "ERROR: has retried this operation " << retryAttempt
<< " times, failing!" << endl;
return NDBT_FAILED;
}
pTrans = pNdb->startTransaction();
if (pTrans == NULL) {
err = pNdb->getNdbError();
if (err.status == NdbError::TemporaryError){
ERR(err);
NdbSleep_MilliSleep(50);
continue;
}
goto failed;
}
pOp = pTrans->getNdbScanOperation(pTab->getName());
if (pOp == NULL) {
goto failed;
}
int flags = 0;
flags |= _tupscan ? NdbScanOperation::SF_TupScan : 0;
flags |= _diskscan ? NdbScanOperation::SF_DiskScan : 0;
if( pOp->readTuples(NdbOperation::LM_Exclusive,
flags, par) ) {
goto failed;
}
if(pTrans->execute(NdbTransaction::NoCommit) != 0){
err = pTrans->getNdbError();
if(err.status == NdbError::TemporaryError){
ERR(err);
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
continue;
}
goto failed;
}
while((check = pOp->nextResult(true)) == 0){
do {
if (pOp->deleteCurrentTuple() != 0){
goto failed;
}
deletedRows++;
} while((check = pOp->nextResult(false)) == 0);
if(check != -1){
if (fetch_across_commit) {
check = pTrans->execute(NdbTransaction::Commit);
pTrans->restart(); // new tx id
} else {
check = pTrans->execute(NdbTransaction::NoCommit);
}
}
err = pTrans->getNdbError();
if(check == -1){
if(err.status == NdbError::TemporaryError){
ERR(err);
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
par = 1;
goto restart;
}
goto failed;
}
}
if(check == -1){
err = pTrans->getNdbError();
if(err.status == NdbError::TemporaryError){
ERR(err);
pNdb->closeTransaction(pTrans);
NdbSleep_MilliSleep(50);
par = 1;
goto restart;
}
goto failed;
}
if (! fetch_across_commit &&
pTrans->execute(NdbTransaction::Commit) != 0) {
err = pTrans->getNdbError();
goto failed;
}
pNdb->closeTransaction(pTrans);
return NDBT_OK;
}
return NDBT_FAILED;
failed:
if(pTrans != 0) pNdb->closeTransaction(pTrans);
ERR(err);
return (err.code != 0 ? err.code : NDBT_FAILED);
}
const NdbError & DBScanHelper::getNdbError() {
return tx->getNdbError();
}
void
BackupRestore::logEntry(const LogEntry & tup)
{
if (!m_restore)
return;
NdbTransaction * trans = m_ndb->startTransaction();
if (trans == NULL)
{
// Deep shit, TODO: handle the error
err << "Cannot start transaction" << endl;
exitHandler();
} // if
const NdbDictionary::Table * table = get_table(tup.m_table->m_dictTable);
NdbOperation * op = trans->getNdbOperation(table);
if (op == NULL)
{
err << "Cannot get operation: " << trans->getNdbError() << endl;
exitHandler();
} // if
int check = 0;
switch(tup.m_type)
{
case LogEntry::LE_INSERT:
check = op->insertTuple();
break;
case LogEntry::LE_UPDATE:
check = op->updateTuple();
break;
case LogEntry::LE_DELETE:
check = op->deleteTuple();
break;
default:
err << "Log entry has wrong operation type."
<< " Exiting...";
exitHandler();
}
if (check != 0)
{
err << "Error defining op: " << trans->getNdbError() << endl;
exitHandler();
} // if
Bitmask<4096> keys;
for (Uint32 i= 0; i < tup.size(); i++)
{
const AttributeS * attr = tup[i];
int size = attr->Desc->size;
int arraySize = attr->Desc->arraySize;
const char * dataPtr = attr->Data.string_value;
if (tup.m_table->have_auto_inc(attr->Desc->attrId))
tup.m_table->update_max_auto_val(dataPtr,size*arraySize);
const Uint32 length = (size / 8) * arraySize;
if (attr->Desc->m_column->getPrimaryKey())
{
if(!keys.get(attr->Desc->attrId))
{
keys.set(attr->Desc->attrId);
check= op->equal(attr->Desc->attrId, dataPtr, length);
}
}
else
check= op->setValue(attr->Desc->attrId, dataPtr, length);
if (check != 0)
{
err << "Error defining op: " << trans->getNdbError() << endl;
exitHandler();
} // if
}
const int ret = trans->execute(NdbTransaction::Commit);
if (ret != 0)
{
// Both insert update and delete can fail during log running
// and it's ok
// TODO: check that the error is either tuple exists or tuple does not exist?
bool ok= false;
NdbError errobj= trans->getNdbError();
switch(tup.m_type)
{
case LogEntry::LE_INSERT:
if(errobj.status == NdbError::PermanentError &&
errobj.classification == NdbError::ConstraintViolation)
ok= true;
break;
case LogEntry::LE_UPDATE:
case LogEntry::LE_DELETE:
if(errobj.status == NdbError::PermanentError &&
errobj.classification == NdbError::NoDataFound)
ok= true;
break;
}
if (!ok)
{
err << "execute failed: " << errobj << endl;
exitHandler();
}
}
m_ndb->closeTransaction(trans);
m_logCount++;
}
static int
runBug14702377(NDBT_Context* ctx, NDBT_Step* step)
{
Ndb* pNdb = GETNDB(step);
NdbDictionary::Dictionary * pDict = pNdb->getDictionary();
int records = ctx->getNumRecords();
int result = NDBT_OK;
while (ctx->getProperty("HalfStartedDone", (Uint32)0) == 0)
{
ndbout << "Wait for half started..." << endl;
NdbSleep_SecSleep(15);
}
ndbout << "Got half started" << endl;
while (1)
{
require(table_list.size() == 1);
const char* tabname = table_list[0].c_str();
const NdbDictionary::Table* tab = 0;
CHK2((tab = pDict->getTable(tabname)) != 0,
tabname << ": " << pDict->getNdbError());
const int ncol = tab->getNoOfColumns();
{
HugoTransactions trans(*tab);
CHK2(trans.loadTable(pNdb, records) == 0, trans.getNdbError());
}
for (int r = 0; r < records; r++)
{
// with 1000 records will surely hit bug case
const int lm = myRandom48(4); // 2
const int nval = myRandom48(ncol + 1); // most
const bool exist = myRandom48(2); // false
NdbTransaction* pTx = 0;
NdbOperation* pOp = 0;
CHK2((pTx = pNdb->startTransaction()) != 0,
pNdb->getNdbError());
CHK2((pOp = pTx->getNdbOperation(tab)) != 0,
pTx->getNdbError());
CHK2((pOp->readTuple((NdbOperation::LockMode)lm)) == 0,
pOp->getNdbError());
for (int id = 0; id <= 0; id++)
{
const NdbDictionary::Column* c = tab->getColumn(id);
require(c != 0 && c->getPrimaryKey() &&
c->getType() == NdbDictionary::Column::Unsigned);
Uint32 val = myRandom48(records);
if (!exist)
val = 0xaaaa0000 + myRandom48(0xffff + 1);
const char* valp = (const char*)&val;
CHK2(pOp->equal(id, valp) == 0, pOp->getNdbError());
}
CHK2(result == NDBT_OK, "failed");
for (int id = 0; id < nval; id++)
{
const NdbDictionary::Column* c = tab->getColumn(id);
require(c != 0 && (id == 0 || !c->getPrimaryKey()));
CHK2(pOp->getValue(id) != 0, pOp->getNdbError());
}
CHK2(result == NDBT_OK, "failed");
char info1[200];
sprintf(info1, "lm=%d nval=%d exist=%d",
lm, nval, exist);
g_info << "PK read T1 exec: " << info1 << endl;
Uint64 t1 = NdbTick_CurrentMillisecond();
int ret = pTx->execute(NdbTransaction::NoCommit);
Uint64 t2 = NdbTick_CurrentMillisecond();
int msec = (int)(t2-t1);
const NdbError& txerr = pTx->getNdbError();
const NdbError& operr = pOp->getNdbError();
char info2[200];
sprintf(info2, "%s msec=%d ret=%d txerr=%d operr=%d",
info1, msec, ret, txerr.code, operr.code);
g_info << "PK read T1 done: " << info2 << endl;
if (ret == 0 && txerr.code == 0 && operr.code == 0)
{
CHK2(exist, "row should not be found: " << info2);
}
else if (ret == 0 && txerr.code == 626 && operr.code == 626)
{
CHK2(!exist, "row should be found: " << info2);
}
else if (txerr.status == NdbError::TemporaryError)
{
g_err << "PK read T1 temporary error (tx): " << info2 << endl;
NdbSleep_MilliSleep(50);
}
else if (operr.status == NdbError::TemporaryError)
{
g_err << "PK read T1 temporary error (op): " << info2 << endl;
NdbSleep_MilliSleep(50);
}
else
{
// gets 4012 before bugfix
CHK2(false, "unexpected error: " << info2);
}
pNdb->closeTransaction(pTx);
pTx = 0;
}
break;
}
g_err << "Clear half started hold..." << endl;
ctx->setProperty("HalfStartedHold", (Uint32)0);
return result;
}