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Commit c00a5150 authored by ndbdev@dl145b.mysql.com's avatar ndbdev@dl145b.mysql.com
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parents 03527936 32a3dd85
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Showing with 196 additions and 72 deletions
mysql-test/r/func_gconcat.result
View file @ c00a5150
......@@ -558,3 +558,12 @@ DROP TABLE t1,t2;
select * from (select group_concat('c') from DUAL) t;
group_concat('c')
NULL
create table t1 ( a int not null default 0);
select * from (select group_concat(a) from t1) t2;
group_concat(a)
NULL
select group_concat('x') UNION ALL select 1;
group_concat('x')
NULL
1
drop table t1;
mysql-test/t/func_gconcat.test
View file @ c00a5150
......@@ -355,4 +355,12 @@ DROP TABLE t1,t2;
#
select * from (select group_concat('c') from DUAL) t;
#
# Bug #12859 group_concat in subquery cause incorrect not null
#
create table t1 ( a int not null default 0);
select * from (select group_concat(a) from t1) t2;
select group_concat('x') UNION ALL select 1;
drop table t1;
# End of 4.1 tests
ndb/include/util/ndb_opts.h
View file @ c00a5150
......@@ -30,6 +30,7 @@ my_bool opt_ndb_optimized_node_selection
int opt_ndb_nodeid;
bool opt_endinfo= 0;
my_bool opt_ndb_shm;
my_bool opt_core;
const char *opt_ndb_connectstring= 0;
const char *opt_connect_str= 0;
const char *opt_ndb_mgmd= 0;
......@@ -41,6 +42,11 @@ const char *opt_debug= 0;
#endif
#define OPT_NDB_CONNECTSTRING 'c'
#if defined VM_TRACE && ( ! ( defined NDB_OSE || defined NDB_SOFTOSE) )
#define OPT_WANT_CORE_DEFAULT 1
#else
#define OPT_WANT_CORE_DEFAULT 0
#endif
#define NDB_STD_OPTS_COMMON \
{ "usage", '?', "Display this help and exit.", \
......@@ -75,7 +81,10 @@ const char *opt_debug= 0;
GET_BOOL, OPT_ARG, 1, 0, 0, 0, 0, 0},\
{ "connect-string", OPT_NDB_CONNECTSTRING, "same as --ndb-connectstring",\
(gptr*) &opt_ndb_connectstring, (gptr*) &opt_ndb_connectstring, \
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 }
0, GET_STR, REQUIRED_ARG, 0, 0, 0, 0, 0, 0 },\
{ "core-file", OPT_WANT_CORE, "Write core on errors.",\
(gptr*) &opt_core, (gptr*) &opt_core, 0,\
GET_BOOL, NO_ARG, OPT_WANT_CORE_DEFAULT, 0, 0, 0, 0, 0}
#ifndef DBUG_OFF
#define NDB_STD_OPTS(prog_name) \
......@@ -99,6 +108,7 @@ enum ndb_std_options {
OPT_NDB_SHM= 256,
OPT_NDB_SHM_SIGNUM,
OPT_NDB_OPTIMIZED_NODE_SELECTION,
OPT_WANT_CORE,
OPT_NDB_MGMD,
OPT_NDB_NODEID,
NDB_STD_OPTIONS_LAST /* should always be last in this enum */
......
ndb/src/kernel/blocks/ndbcntr/NdbcntrMain.cpp
View file @ c00a5150
......@@ -2489,6 +2489,14 @@ void Ndbcntr::Missra::sendNextSTTOR(Signal* signal){
const Uint32 start = currentBlockIndex;
if (currentStartPhase == ZSTART_PHASE_6)
{
// Ndbd has passed the critical startphases.
// Change error handler from "startup" state
// to normal state.
ErrorReporter::setErrorHandlerShutdownType();
}
for(; currentBlockIndex < ALL_BLOCKS_SZ; currentBlockIndex++){
jam();
if(ALL_BLOCKS[currentBlockIndex].NextSP == currentStartPhase){
......
ndb/src/kernel/error/ErrorReporter.cpp
View file @ c00a5150
......@@ -152,6 +152,14 @@ ErrorReporter::formatMessage(ErrorCategory type,
return;
}
NdbShutdownType ErrorReporter::s_errorHandlerShutdownType = NST_ErrorHandler;
void
ErrorReporter::setErrorHandlerShutdownType(NdbShutdownType nst)
{
s_errorHandlerShutdownType = nst;
}
void
ErrorReporter::handleAssert(const char* message, const char* file, int line)
{
......@@ -170,7 +178,7 @@ ErrorReporter::handleAssert(const char* message, const char* file, int line)
WriteMessage(assert, ERR_ERROR_PRGERR, message, refMessage,
theEmulatedJamIndex, theEmulatedJam);
NdbShutdown(NST_ErrorHandler);
NdbShutdown(s_errorHandlerShutdownType);
}
void
......@@ -182,7 +190,7 @@ ErrorReporter::handleThreadAssert(const char* message,
BaseString::snprintf(refMessage, 100, "file: %s lineNo: %d - %s",
file, line, message);
NdbShutdown(NST_ErrorHandler);
NdbShutdown(s_errorHandlerShutdownType);
}//ErrorReporter::handleThreadAssert()
......@@ -201,6 +209,8 @@ ErrorReporter::handleError(ErrorCategory type, int messageID,
if(messageID == ERR_ERROR_INSERT){
NdbShutdown(NST_ErrorInsert);
} else {
if (nst == NST_ErrorHandler)
nst = s_errorHandlerShutdownType;
NdbShutdown(nst);
}
}
......
ndb/src/kernel/error/ErrorReporter.hpp
View file @ c00a5150
......@@ -26,6 +26,7 @@
class ErrorReporter
{
public:
static void setErrorHandlerShutdownType(NdbShutdownType nst = NST_ErrorHandler);
static void handleAssert(const char* message,
const char* file,
int line);
......@@ -57,6 +58,7 @@ public:
static const char* formatTimeStampString();
private:
static enum NdbShutdownType s_errorHandlerShutdownType;
};
#endif
ndb/src/kernel/main.cpp
View file @ c00a5150
......@@ -48,8 +48,14 @@ extern NdbMutex * theShutdownMutex;
void catchsigs(bool ignore); // for process signal handling
#define MAX_FAILED_STARTUPS 3
// Flag set by child through SIGUSR1 to signal a failed startup
static bool failed_startup_flag = false;
// Counter for consecutive failed startups
static Uint32 failed_startups = 0;
extern "C" void handler_shutdown(int signum); // for process signal handling
extern "C" void handler_error(int signum); // for process signal handling
extern "C" void handler_sigusr1(int signum); // child signalling failed restart
// Shows system information
void systemInfo(const Configuration & conf,
......@@ -95,6 +101,8 @@ int main(int argc, char** argv)
}
#ifndef NDB_WIN32
signal(SIGUSR1, handler_sigusr1);
for(pid_t child = fork(); child != 0; child = fork()){
/**
* Parent
......@@ -146,6 +154,20 @@ int main(int argc, char** argv)
*/
exit(0);
}
if (!failed_startup_flag)
{
// Reset the counter for consecutive failed startups
failed_startups = 0;
}
else if (failed_startups >= MAX_FAILED_STARTUPS && !theConfig->stopOnError())
{
/**
* Error shutdown && stopOnError()
*/
g_eventLogger.alert("Ndbd has failed %u consecutive startups. Not restarting", failed_startups);
exit(0);
}
failed_startup_flag = false;
g_eventLogger.info("Ndb has terminated (pid %d) restarting", child);
theConfig->fetch_configuration();
}
......@@ -179,6 +201,9 @@ int main(int argc, char** argv)
/**
* Do startup
*/
ErrorReporter::setErrorHandlerShutdownType(NST_ErrorHandlerStartup);
switch(globalData.theRestartFlag){
case initial_state:
globalEmulatorData.theThreadConfig->doStart(NodeState::SL_CMVMI);
......@@ -375,3 +400,15 @@ handler_error(int signum){
BaseString::snprintf(errorData, 40, "Signal %d received", signum);
ERROR_SET_SIGNAL(fatal, 0, errorData, __FILE__);
}
extern "C"
void
handler_sigusr1(int signum)
{
if (!failed_startup_flag)
{
failed_startups++;
failed_startup_flag = true;
}
g_eventLogger.info("Received signal %d. Ndbd failed startup (%u).", signum, failed_startups);
}
ndb/src/kernel/vm/Emulator.cpp
View file @ c00a5150
......@@ -39,6 +39,7 @@ extern "C" {
extern void (* ndb_new_handler)();
}
extern EventLogger g_eventLogger;
extern my_bool opt_core;
/**
* Declare the global variables
......@@ -154,6 +155,9 @@ NdbShutdown(NdbShutdownType type,
case NST_ErrorHandlerSignal:
g_eventLogger.info("Error handler signal %s system", shutting);
break;
case NST_ErrorHandlerStartup:
g_eventLogger.info("Error handler startup %s system", shutting);
break;
case NST_Restart:
g_eventLogger.info("Restarting system");
break;
......@@ -165,23 +169,25 @@ NdbShutdown(NdbShutdownType type,
}
const char * exitAbort = 0;
#if defined VM_TRACE && ( ! ( defined NDB_OSE || defined NDB_SOFTOSE) )
if (opt_core)
exitAbort = "aborting";
#else
else
exitAbort = "exiting";
#endif
if(type == NST_Watchdog){
/**
* Very serious, don't attempt to free, just die!!
*/
g_eventLogger.info("Watchdog shutdown completed - %s", exitAbort);
#if defined VM_TRACE && ( ! ( defined NDB_OSE || defined NDB_SOFTOSE) )
if (opt_core)
{
signal(6, SIG_DFL);
abort();
#else
}
else
{
exit(-1);
#endif
}
}
#ifndef NDB_WIN32
......@@ -229,13 +235,19 @@ NdbShutdown(NdbShutdownType type,
}
if(type != NST_Normal && type != NST_Restart){
// Signal parent that error occured during startup
if (type == NST_ErrorHandlerStartup)
kill(getppid(), SIGUSR1);
g_eventLogger.info("Error handler shutdown completed - %s", exitAbort);
#if ( defined VM_TRACE || defined ERROR_INSERT ) && ( ! ( defined NDB_OSE || defined NDB_SOFTOSE) )
if (opt_core)
{
signal(6, SIG_DFL);
abort();
#else
}
else
{
exit(-1);
#endif
}
}
/**
......
ndb/src/kernel/vm/Emulator.hpp
View file @ c00a5150
......@@ -83,7 +83,8 @@ enum NdbShutdownType {
NST_ErrorHandler,
NST_ErrorHandlerSignal,
NST_Restart,
NST_ErrorInsert
NST_ErrorInsert,
NST_ErrorHandlerStartup
};
enum NdbRestartType {
......
ndb/src/mgmsrv/ConfigInfo.cpp
View file @ c00a5150
......@@ -25,6 +25,7 @@
#include <m_string.h>
extern my_bool opt_ndb_shm;
extern my_bool opt_core;
#define MAX_LINE_LENGTH 255
#define KEY_INTERNAL 0
......@@ -2152,11 +2153,10 @@ static void require(bool v)
{
if(!v)
{
#ifndef DBUG_OFF
if (opt_core)
abort();
#else
else
exit(-1);
#endif
}
}
......@@ -2226,7 +2226,7 @@ ConfigInfo::ConfigInfo()
ndbout << "Error: Parameter " << param._fname
<< " defined twice in section " << param._section
<< "." << endl;
exit(-1);
require(false);
}
// Add new pinfo to section
......@@ -2276,7 +2276,7 @@ ConfigInfo::ConfigInfo()
ndbout << "Check that each entry has a section failed." << endl;
ndbout << "Parameter \"" << m_ParamInfo[i]._fname << endl;
ndbout << "Edit file " << __FILE__ << "." << endl;
exit(-1);
require(false);
}
if(m_ParamInfo[i]._type == ConfigInfo::CI_SECTION)
......@@ -2289,7 +2289,7 @@ ConfigInfo::ConfigInfo()
<< "\" does not exist in section \""
<< m_ParamInfo[i]._section << "\"." << endl;
ndbout << "Edit file " << __FILE__ << "." << endl;
exit(-1);
require(false);
}
}
}
......
ndb/src/mgmsrv/MgmtSrvr.cpp
View file @ c00a5150
......@@ -65,6 +65,18 @@
extern int global_flag_send_heartbeat_now;
extern int g_no_nodeid_checks;
extern my_bool opt_core;
static void require(bool v)
{
if(!v)
{
if (opt_core)
abort();
else
exit(-1);
}
}
void *
MgmtSrvr::logLevelThread_C(void* m)
......@@ -435,14 +447,14 @@ MgmtSrvr::MgmtSrvr(SocketServer *socket_server,
if (tmp_nodeid == 0)
{
ndbout_c(m_config_retriever->getErrorString());
exit(-1);
require(false);
}
// read config from other managent server
_config= fetchConfig();
if (_config == 0)
{
ndbout << m_config_retriever->getErrorString() << endl;
exit(-1);
require(false);
}
_ownNodeId= tmp_nodeid;
}
......@@ -453,7 +465,7 @@ MgmtSrvr::MgmtSrvr(SocketServer *socket_server,
_config= readConfig();
if (_config == 0) {
ndbout << "Unable to read config file" << endl;
exit(-1);
require(false);
}
}
......@@ -509,7 +521,7 @@ MgmtSrvr::MgmtSrvr(SocketServer *socket_server,
if ((m_node_id_mutex = NdbMutex_Create()) == 0)
{
ndbout << "mutex creation failed line = " << __LINE__ << endl;
exit(-1);
require(false);
}
if (_ownNodeId == 0) // we did not get node id from other server
......@@ -520,7 +532,7 @@ MgmtSrvr::MgmtSrvr(SocketServer *socket_server,
0, 0, error_string)){
ndbout << "Unable to obtain requested nodeid: "
<< error_string.c_str() << endl;
exit(-1);
require(false);
}
_ownNodeId = tmp;
}
......@@ -531,7 +543,7 @@ MgmtSrvr::MgmtSrvr(SocketServer *socket_server,
_ownNodeId))
{
ndbout << m_config_retriever->getErrorString() << endl;
exit(-1);
require(false);
}
}
......@@ -2221,18 +2233,18 @@ MgmtSrvr::alloc_node_id(NodeId * nodeId,
iter(* _config->m_configValues, CFG_SECTION_NODE);
for(iter.first(); iter.valid(); iter.next()) {
unsigned tmp= 0;
if(iter.get(CFG_NODE_ID, &tmp)) abort();
if(iter.get(CFG_NODE_ID, &tmp)) require(false);
if (*nodeId && *nodeId != tmp)
continue;
found_matching_id= true;
if(iter.get(CFG_TYPE_OF_SECTION, &type_c)) abort();
if(iter.get(CFG_TYPE_OF_SECTION, &type_c)) require(false);
if(type_c != (unsigned)type)
continue;
found_matching_type= true;
if (connected_nodes.get(tmp))
continue;
found_free_node= true;
if(iter.get(CFG_NODE_HOST, &config_hostname)) abort();
if(iter.get(CFG_NODE_HOST, &config_hostname)) require(false);
if (config_hostname && config_hostname[0] == 0)
config_hostname= 0;
else if (client_addr) {
......@@ -2581,7 +2593,7 @@ MgmtSrvr::backupCallback(BackupEvent & event)
int
MgmtSrvr::repCommand(Uint32* repReqId, Uint32 request, bool waitCompleted)
{
abort();
require(false);
return 0;
}
......@@ -2745,7 +2757,7 @@ MgmtSrvr::setDbParameter(int node, int param, const char * value,
ndbout_c("Updating node %d param: %d to %s", node, param, val_char);
break;
default:
abort();
require(false);
}
assert(res);
} while(node == 0 && iter.next() == 0);
......
ndb/src/mgmsrv/Services.cpp
View file @ c00a5150
......@@ -362,8 +362,6 @@ MgmApiSession::getConfig_old(Parser_t::Context &ctx) {
}
#endif /* MGM_GET_CONFIG_BACKWARDS_COMPAT */
inline void require(bool b){ if(!b) abort(); }
void
MgmApiSession::getConfig(Parser_t::Context &ctx,
const class Properties &args) {
......
ndb/tools/ndb_config.cpp
View file @ c00a5150
......@@ -42,6 +42,7 @@ static const char * g_field_delimiter=",";
static const char * g_row_delimiter=" ";
int g_print_full_config, opt_ndb_shm;
my_bool opt_core;
typedef ndb_mgm_configuration_iterator Iter;
......
ndb/tools/restore/consumer_restore.cpp
View file @ c00a5150
......@@ -14,9 +14,12 @@
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <NDBT_ReturnCodes.h>
#include "consumer_restore.hpp"
#include <NdbSleep.h>
extern my_bool opt_core;
extern FilteredNdbOut err;
extern FilteredNdbOut info;
extern FilteredNdbOut debug;
......@@ -472,7 +475,11 @@ bool BackupRestore::errorHandler(restore_callback_t *cb)
void BackupRestore::exitHandler()
{
release();
exit(-1);
NDBT_ProgramExit(NDBT_FAILED);
if (opt_core)
abort();
else
exit(NDBT_FAILED);
}
......@@ -506,7 +513,7 @@ BackupRestore::logEntry(const LogEntry & tup)
{
// Deep shit, TODO: handle the error
err << "Cannot start transaction" << endl;
exit(-1);
exitHandler();
} // if
const NdbDictionary::Table * table = get_table(tup.m_table->m_dictTable);
......@@ -514,7 +521,7 @@ BackupRestore::logEntry(const LogEntry & tup)
if (op == NULL)
{
err << "Cannot get operation: " << trans->getNdbError() << endl;
exit(-1);
exitHandler();
} // if
int check = 0;
......@@ -532,13 +539,13 @@ BackupRestore::logEntry(const LogEntry & tup)
default:
err << "Log entry has wrong operation type."
<< " Exiting...";
exit(-1);
exitHandler();
}
if (check != 0)
{
err << "Error defining op: " << trans->getNdbError() << endl;
exit(-1);
exitHandler();
} // if
Bitmask<4096> keys;
......@@ -567,7 +574,7 @@ BackupRestore::logEntry(const LogEntry & tup)
if (check != 0)
{
err << "Error defining op: " << trans->getNdbError() << endl;
exit(-1);
exitHandler();
} // if
}
......@@ -596,7 +603,7 @@ BackupRestore::logEntry(const LogEntry & tup)
if (!ok)
{
err << "execute failed: " << errobj << endl;
exit(-1);
exitHandler();
}
}
......@@ -643,7 +650,7 @@ BackupRestore::tuple(const TupleS & tup)
{
// Deep shit, TODO: handle the error
ndbout << "Cannot start transaction" << endl;
exit(-1);
exitHandler();
} // if
const TableS * table = tup.getTable();
......@@ -652,7 +659,7 @@ BackupRestore::tuple(const TupleS & tup)
{
ndbout << "Cannot get operation: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
exitHandler();
} // if
// TODO: check return value and handle error
......@@ -660,7 +667,7 @@ BackupRestore::tuple(const TupleS & tup)
{
ndbout << "writeTuple call failed: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
exitHandler();
} // if
for (int i = 0; i < tup.getNoOfAttributes(); i++)
......@@ -694,7 +701,7 @@ BackupRestore::tuple(const TupleS & tup)
{
ndbout << "execute failed: ";
ndbout << trans->getNdbError() << endl;
exit(-1);
exitHandler();
}
m_ndb->closeTransaction(trans);
if (ret == 0)
......
ndb/tools/restore/restore_main.cpp
View file @ c00a5150
......@@ -20,6 +20,7 @@
#include <ndb_limits.h>
#include <NdbTCP.h>
#include <NdbOut.hpp>
#include <NDBT_ReturnCodes.h>
#include "consumer_restore.hpp"
#include "consumer_printer.hpp"
......@@ -118,14 +119,14 @@ get_one_option(int optid, const struct my_option *opt __attribute__((unused)),
if (ga_nodeId == 0)
{
printf("Error in --nodeid,-n setting, see --help\n");
exit(1);
exit(NDBT_ProgramExit(NDBT_WRONGARGS));
}
break;
case 'b':
if (ga_backupId == 0)
{
printf("Error in --backupid,-b setting, see --help\n");
exit(1);
exit(NDBT_ProgramExit(NDBT_WRONGARGS));
}
break;
}
......@@ -138,7 +139,7 @@ readArguments(int *pargc, char*** pargv)
load_defaults("my",load_default_groups,pargc,pargv);
if (handle_options(pargc, pargv, my_long_options, get_one_option))
{
exit(1);
exit(NDBT_ProgramExit(NDBT_WRONGARGS));
}
BackupPrinter* printer = new BackupPrinter();
......@@ -229,6 +230,14 @@ free_data_callback()
}
const char * g_connect_string = 0;
static void exitHandler(int code)
{
NDBT_ProgramExit(code);
if (opt_core)
abort();
else
exit(code);
}
int
main(int argc, char** argv)
......@@ -237,7 +246,7 @@ main(int argc, char** argv)
if (!readArguments(&argc, &argv))
{
return -1;
exitHandler(NDBT_FAILED);
}
g_connect_string = opt_connect_str;
......@@ -249,7 +258,7 @@ main(int argc, char** argv)
if (!metaData.readHeader())
{
ndbout << "Failed to read " << metaData.getFilename() << endl << endl;
return -1;
exitHandler(NDBT_FAILED);
}
const BackupFormat::FileHeader & tmp = metaData.getFileHeader();
......@@ -267,20 +276,20 @@ main(int argc, char** argv)
if (res == 0)
{
ndbout_c("Restore: Failed to load content");
return -1;
exitHandler(NDBT_FAILED);
}
if (metaData.getNoOfTables() == 0)
{
ndbout_c("Restore: The backup contains no tables ");
return -1;
exitHandler(NDBT_FAILED);
}
if (!metaData.validateFooter())
{
ndbout_c("Restore: Failed to validate footer.");
return -1;
exitHandler(NDBT_FAILED);
}
Uint32 i;
......@@ -289,7 +298,7 @@ main(int argc, char** argv)
if (!g_consumers[i]->init())
{
clearConsumers();
return -11;
exitHandler(NDBT_FAILED);
}
}
......@@ -304,7 +313,7 @@ main(int argc, char** argv)
ndbout_c("Restore: Failed to restore table: %s. "
"Exiting...",
metaData[i]->getTableName());
return -11;
exitHandler(NDBT_FAILED);
}
}
}
......@@ -313,7 +322,7 @@ main(int argc, char** argv)
if (!g_consumers[i]->endOfTables())
{
ndbout_c("Restore: Failed while closing tables");
return -11;
exitHandler(NDBT_FAILED);
}
if (ga_restore || ga_print)
......@@ -326,7 +335,7 @@ main(int argc, char** argv)
if (!dataIter.readHeader())
{
ndbout << "Failed to read header of data file. Exiting..." ;
return -11;
exitHandler(NDBT_FAILED);
}
......@@ -344,12 +353,12 @@ main(int argc, char** argv)
{
ndbout_c("Restore: An error occured while restoring data. "
"Exiting...");
return -1;
exitHandler(NDBT_FAILED);
}
if (!dataIter.validateFragmentFooter()) {
ndbout_c("Restore: Error validating fragment footer. "
"Exiting...");
return -1;
exitHandler(NDBT_FAILED);
}
} // while (dataIter.readFragmentHeader(res))
......@@ -357,7 +366,7 @@ main(int argc, char** argv)
{
err << "Restore: An error occured while restoring data. Exiting... "
<< "res=" << res << endl;
return -1;
exitHandler(NDBT_FAILED);
}
......@@ -373,7 +382,7 @@ main(int argc, char** argv)
if (!logIter.readHeader())
{
err << "Failed to read header of data file. Exiting..." << endl;
return -1;
exitHandler(NDBT_FAILED);
}
const LogEntry * logEntry = 0;
......@@ -387,7 +396,7 @@ main(int argc, char** argv)
{
err << "Restore: An restoring the data log. Exiting... res="
<< res << endl;
return -1;
exitHandler(NDBT_FAILED);
}
logIter.validateFooter(); //not implemented
for (i= 0; i < g_consumers.size(); i++)
......@@ -406,14 +415,14 @@ main(int argc, char** argv)
ndbout_c("Restore: Failed to finalize restore table: %s. "
"Exiting...",
metaData[i]->getTableName());
return -11;
exitHandler(NDBT_FAILED);
}
}
}
}
}
clearConsumers();
return 0;
return NDBT_ProgramExit(NDBT_OK);
} // main
template class Vector<BackupConsumer*>;
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