116 lines
3.2 KiB
C++
116 lines
3.2 KiB
C++
/*
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Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA */
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#include <ndb_global.h>
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#include <NdbOut.hpp>
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#include <NdbApi.hpp>
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#include <NDBT.hpp>
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#include <getarg.h>
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int main(int argc, const char** argv){
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ndb_init();
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int _help = 0;
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int _p = 0;
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const char * db = "TEST_DB";
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const char* _connectstr = NULL;
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struct getargs args[] = {
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{ "database", 'd', arg_string, &db, "database", 0 },
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{ "connstr", 'c', arg_string, &_connectstr, "Connect string", "cs" },
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{ "partitions", 'p', arg_integer, &_p, "New no of partitions", 0},
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{ "usage", '?', arg_flag, &_help, "Print help", "" }
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};
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int num_args = sizeof(args) / sizeof(args[0]);
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int optind = 0;
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char desc[] =
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"tabname\n" \
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"This program will alter no of partitions of table in Ndb.\n";
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if(getarg(args, num_args, argc, argv, &optind) || _help){
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arg_printusage(args, num_args, argv[0], desc);
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return NDBT_ProgramExit(NDBT_WRONGARGS);
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}
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if(argv[optind] == NULL)
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{
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arg_printusage(args, num_args, argv[0], desc);
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return NDBT_ProgramExit(NDBT_WRONGARGS);
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}
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// Connect to Ndb
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Ndb_cluster_connection con(_connectstr);
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if(con.connect(12, 5, 1) != 0)
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{
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return NDBT_ProgramExit(NDBT_FAILED);
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}
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Ndb MyNdb(&con, db );
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if(MyNdb.init() != 0){
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NDB_ERR(MyNdb.getNdbError());
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return NDBT_ProgramExit(NDBT_FAILED);
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}
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while(MyNdb.waitUntilReady() != 0)
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ndbout << "Waiting for ndb to become ready..." << endl;
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NdbDictionary::Dictionary* MyDic = MyNdb.getDictionary();
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for (int i = optind; i<argc; i++)
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{
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printf("altering %s/%s...", db, argv[i]);
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const NdbDictionary::Table* oldTable = MyDic->getTable(argv[i]);
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if (oldTable == 0)
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{
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ndbout << "Failed to retrieve table " << argv[i]
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<< ": " << MyDic->getNdbError() << endl;
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return NDBT_ProgramExit(NDBT_FAILED);
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}
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NdbDictionary::Table newTable = *oldTable;
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newTable.setFragmentCount(_p);
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if (MyDic->beginSchemaTrans() != 0)
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goto err;
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if (MyDic->prepareHashMap(*oldTable, newTable) != 0)
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goto err;
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if (MyDic->alterTable(*oldTable, newTable) != 0)
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goto err;
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if (MyDic->endSchemaTrans())
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goto err;
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ndbout_c("done");
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}
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return NDBT_ProgramExit(NDBT_OK);
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err:
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NdbError err = MyDic->getNdbError();
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if (MyDic->hasSchemaTrans())
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MyDic->endSchemaTrans(NdbDictionary::Dictionary::SchemaTransAbort);
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ndbout << "Failed! "
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<< err << endl;
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return NDBT_ProgramExit(NDBT_FAILED);
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}
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