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Merge pull request #312 from mariadb-corporation/MCOL-976

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MCOL-976: Change how processes are restarted after losing or regainin…
This commit is contained in:
david hill
2017-11-13 17:12:48 -06:00
committed by GitHub
parent 969b6d2826 e345d20f97
commit 2c36e4ce05
2 changed files with 108 additions and 59 deletions
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89
procmgr/main.cpp
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@@ -1635,9 +1635,16 @@ void pingDeviceThread()
processManager.distributeConfigFile("system");
sleep(1);
// if a PM module was started successfully, restart ACTIVE ExeMgr(s) / mysqld
// if a PM module was started successfully, restart ACTIVE DBRM(s), ExeMgr(s) / mysqld
if( moduleName.find("pm") == 0 ) {
processManager.restartProcessType("ExeMgr", moduleName);
processManager.restartProcessType("DBRMControllerNode", moduleName);
processManager.restartProcessType("DBRMWorkerNode");
processManager.stopProcessType("DDLProc");
processManager.stopProcessType("DMLProc");
processManager.stopProcessType("ExeMgr");
processManager.restartProcessType("PrimProc");
sleep(1);
processManager.restartProcessType("ExeMgr");
}
string moduleType = moduleName.substr(0,MAX_MODULE_TYPE_SIZE);
@@ -1667,9 +1674,11 @@ void pingDeviceThread()
// if a PM module was started successfully, DMLProc/DDLProc
if( moduleName.find("pm") == 0 ) {
processManager.restartProcessType("DDLProc", moduleName);
processManager.restartProcessType("WriteEngineServer");
sleep(1);
processManager.restartProcessType("DMLProc", moduleName);
processManager.restartProcessType("DDLProc");
sleep(1);
processManager.restartProcessType("DMLProc");
}
//enable query stats
@@ -1680,6 +1689,78 @@ void pingDeviceThread()
processManager.setSystemState(oam::ACTIVE);
//reset standby module
string newStandbyModule = processManager.getStandbyModule();
//send message to start new Standby Process-Manager, if needed
if ( !newStandbyModule.empty() && newStandbyModule != "NONE") {
processManager.setStandbyModule(newStandbyModule);
}
else
{
Config* sysConfig = Config::makeConfig();
// clear Standby OAM Module
sysConfig->setConfig("SystemConfig", "StandbyOAMModuleName", oam::UnassignedName);
sysConfig->setConfig("ProcStatusControlStandby", "IPAddr", oam::UnassignedIpAddr);
//update Calpont Config table
try {
sysConfig->write();
}
catch(...)
{
log.writeLog(__LINE__, "ERROR: sysConfig->write", LOG_TYPE_ERROR);
}
}
if ( moduletypeconfig.RunType == SIMPLEX ) {
//start SIMPLEX runtype processes on a SIMPLEX runtype module
string moduletype = moduleName.substr(0,MAX_MODULE_TYPE_SIZE);
DeviceNetworkList::iterator pt = moduletypeconfig.ModuleNetworkList.begin();
for( ; pt != moduletypeconfig.ModuleNetworkList.end() ; pt++)
{
string launchModuleName = (*pt).DeviceName;
string launchModuletype = launchModuleName.substr(0,MAX_MODULE_TYPE_SIZE);
if ( moduletype != launchModuletype )
continue;
//skip if active pm module (local module)
if ( launchModuleName == config.moduleName() )
continue;
//check if module is active before starting any SIMPLEX STANDBY apps
try{
int launchopState = oam::ACTIVE;
bool degraded;
oam.getModuleStatus(launchModuleName, launchopState, degraded);
if (launchopState != oam::ACTIVE && launchopState != oam::STANDBY ) {
continue;
}
}
catch (exception& ex)
{
// string error = ex.what();
// log.writeLog(__LINE__, "EXCEPTION ERROR on : " + error, LOG_TYPE_ERROR);
}
catch(...)
{
// log.writeLog(__LINE__, "EXCEPTION ERROR on getModuleStatus on module " + moduleName + ": Caught unknown exception!", LOG_TYPE_ERROR);
}
int status;
log.writeLog(__LINE__, "Starting up STANDBY process on module " + launchModuleName, LOG_TYPE_DEBUG);
for ( int j = 0 ; j < 20 ; j ++ )
{
status = processManager.startModule(launchModuleName, oam::FORCEFUL, oam::AUTO_OFFLINE);
if ( status == API_SUCCESS)
break;
}
log.writeLog(__LINE__, "pingDeviceThread: ACK received from '" + launchModuleName + "' Process-Monitor, return status = " + oam.itoa(status), LOG_TYPE_DEBUG);
}
}
//clear count
moduleInfoList[moduleName] = 0;
}