diff options
Diffstat (limited to 'ndb/src/mgmsrv/MgmtSrvrConfig.cpp')
-rw-r--r-- | ndb/src/mgmsrv/MgmtSrvrConfig.cpp | 241 |
1 files changed, 9 insertions, 232 deletions
diff --git a/ndb/src/mgmsrv/MgmtSrvrConfig.cpp b/ndb/src/mgmsrv/MgmtSrvrConfig.cpp index 6c4b4e9ae3c..e56643a3d7e 100644 --- a/ndb/src/mgmsrv/MgmtSrvrConfig.cpp +++ b/ndb/src/mgmsrv/MgmtSrvrConfig.cpp @@ -23,228 +23,6 @@ #include <ConfigRetriever.hpp> #include <ndb_version.h> -void -MgmtSrvr::handle_MGM_LOCK_CONFIG_REQ(NdbApiSignal *signal) { - NodeId sender = refToNode(signal->theSendersBlockRef); - const MgmLockConfigReq * const req = CAST_CONSTPTR(MgmLockConfigReq, signal->getDataPtr()); - - NdbApiSignal *reply = getSignal(); - if(signal == NULL) - return; /** @todo handle allocation failure */ - - reply->set(TestOrd::TraceAPI, - MGMSRV, - GSN_MGM_LOCK_CONFIG_REP, - MgmLockConfigRep::SignalLength); - - MgmLockConfigRep *lockRep = CAST_PTR(MgmLockConfigRep, reply->getDataPtrSend()); - - lockRep->errorCode = MgmLockConfigRep::UNKNOWN_ERROR; - - if(req->newConfigGeneration < m_nextConfigGenerationNumber) { - lockRep->errorCode = MgmLockConfigRep::GENERATION_MISMATCH; - goto done; - } - NdbMutex_Lock(m_configMutex); - - m_nextConfigGenerationNumber = req->newConfigGeneration+1; - - lockRep->errorCode = MgmLockConfigRep::OK; - - done: - sendSignal(sender, NO_WAIT, reply, true); - NdbMutex_Unlock(m_configMutex); - return; -} - -void -MgmtSrvr::handle_MGM_UNLOCK_CONFIG_REQ(NdbApiSignal *signal) { - NodeId sender = refToNode(signal->theSendersBlockRef); - const MgmUnlockConfigReq * const req = CAST_CONSTPTR(MgmUnlockConfigReq, signal->getDataPtr()); - MgmUnlockConfigRep *unlockRep; - - NdbApiSignal *reply = getSignal(); - if(signal == NULL) - goto error; /** @todo handle allocation failure */ - - reply->set(TestOrd::TraceAPI, - MGMSRV, - GSN_MGM_UNLOCK_CONFIG_REP, - MgmUnlockConfigRep::SignalLength); - - unlockRep = CAST_PTR(MgmUnlockConfigRep, reply->getDataPtrSend()); - - unlockRep->errorCode = MgmUnlockConfigRep::UNKNOWN_ERROR; - - - NdbMutex_Lock(m_configMutex); - - if(req->commitConfig == 1) { - m_newConfig = fetchConfig(); - commitConfig(); - } else - rollbackConfig(); - - unlockRep->errorCode = MgmUnlockConfigRep::OK; - - sendSignal(sender, NO_WAIT, reply, true); - error: - NdbMutex_Unlock(m_configMutex); - return; -} - - -/** - * Prepare all MGM nodes for configuration changes - * - * @returns 0 on success, or -1 on failure - */ -int -MgmtSrvr::lockConf() { - int result = -1; - MgmLockConfigReq* lockReq; - NodeId node = 0; - - /* Check if this is the master node */ - if(getPrimaryNode() != _ownNodeId) - goto done; - - if(NdbMutex_Trylock(m_configMutex) != 0) - return -1; - - m_newConfig = new Config(*_config); /* copy the existing config */ - _config = m_newConfig; - - m_newConfig = new Config(*_config); - - m_nextConfigGenerationNumber++; - - /* Make sure the new configuration _always_ is at least one step older */ - if(m_nextConfigGenerationNumber < m_newConfig->getGenerationNumber()+1) - m_nextConfigGenerationNumber = _config->getGenerationNumber()+1; - - m_newConfig->setGenerationNumber(m_nextConfigGenerationNumber); - - node = 0; - while(getNextNodeId(&node, NDB_MGM_NODE_TYPE_MGM)) { - if(node != _ownNodeId) { - NdbApiSignal* signal = getSignal(); - if (signal == NULL) { - result = COULD_NOT_ALLOCATE_MEMORY; - goto done; - } - - lockReq = CAST_PTR(MgmLockConfigReq, signal->getDataPtrSend()); - signal->set(TestOrd::TraceAPI, - MGMSRV, - GSN_MGM_LOCK_CONFIG_REQ, - MgmLockConfigReq::SignalLength); - - lockReq->newConfigGeneration = m_nextConfigGenerationNumber; - - result = sendSignal(node, NO_WAIT, signal, true); - - NdbApiSignal *reply = - m_signalRecvQueue.waitFor(GSN_MGM_LOCK_CONFIG_REP, 0); - - if(reply == NULL) { - /** @todo handle timeout/error */ - ndbout << __FILE__ << ":" << __LINE__ << endl; - result = -1; - goto done; - } - - } - } - - done: - NdbMutex_Unlock(m_configMutex); - return result; -} - -/** - * Unlocks configuration - * - * @returns 0 on success, ! 0 on error - */ -int -MgmtSrvr::unlockConf(bool commit) { - int result = -1; - MgmUnlockConfigReq* unlockReq; - NodeId node = 0; - - /* Check if this is the master node */ - if(getPrimaryNode() != _ownNodeId) - goto done; - - errno = 0; - if(NdbMutex_Lock(m_configMutex) != 0) - return -1; - - if(commit) - commitConfig(); - else - rollbackConfig(); - - node = 0; - while(getNextNodeId(&node, NDB_MGM_NODE_TYPE_MGM)) { - if(node != _ownNodeId) { - NdbApiSignal* signal = getSignal(); - if (signal == NULL) { - result = COULD_NOT_ALLOCATE_MEMORY; - goto done; - } - - unlockReq = CAST_PTR(MgmUnlockConfigReq, signal->getDataPtrSend()); - signal->set(TestOrd::TraceAPI, - MGMSRV, - GSN_MGM_UNLOCK_CONFIG_REQ, - MgmUnlockConfigReq::SignalLength); - unlockReq->commitConfig = commit; - - result = sendSignal(node, NO_WAIT, signal, true); - - NdbApiSignal *reply = - m_signalRecvQueue.waitFor(GSN_MGM_UNLOCK_CONFIG_REP, 0); - - if(reply == NULL) { - /** @todo handle timeout/error */ - result = -1; - goto done; - } - - } - } - - done: - NdbMutex_Unlock(m_configMutex); - return result; -} - -/** - * Commit the new configuration - */ -int -MgmtSrvr::commitConfig() { - int ret = saveConfig(m_newConfig); - delete _config; - _config = m_newConfig; - m_newConfig = NULL; - ndbout << "commit " << ret << endl; - return ret; -} - -/** - * Rollback to the old configuration - */ -int -MgmtSrvr::rollbackConfig() { - delete m_newConfig; - m_newConfig = NULL; - ndbout << "rollback" << endl; - return saveConfig(_config); -} - /** * Save a configuration to the running configuration file */ @@ -274,7 +52,15 @@ Config * MgmtSrvr::readConfig() { Config *conf; InitConfigFileParser parser; - conf = parser.parseConfig(m_configFilename.c_str()); + if (m_configFilename.length()) + { + conf = parser.parseConfig(m_configFilename.c_str()); + } + else + { + ndbout_c("Reading cluster configuration using my.cnf"); + conf = parser.parse_mycnf(); + } return conf; } @@ -288,12 +74,3 @@ MgmtSrvr::fetchConfig() { } return 0; } - -bool -MgmtSrvr::changeConfig(const BaseString §ion, - const BaseString ¶m, - const BaseString &value) { - if(m_newConfig == NULL) - return false; - return m_newConfig->change(section, param, value); -} |