/******************************************************************************************
* @brief sendResourceAlarm
*
* purpose: send a trap and log the process information
*
******************************************************************************************/
bool ServerMonitor::sendResourceAlarm(string alarmItem, ALARMS alarmID, int action, int usage)
{
ServerMonitor serverMonitor;
Oam oam;
//Log this event
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add(alarmItem);
args.add(" usage at percentage of ");
args.add(usage);
// get current module name
string moduleName;
oamModuleInfo_t st;
try {
st = oam.getModuleInfo();
moduleName = boost::get<0>(st);
}
catch (...) {
moduleName = "Unknown Server";
}
// check if there is an active alarm above the reporting theshold
// that needs to be cleared
if (alarmItem == "CPU")
serverMonitor.checkCPUAlarm(alarmItem, alarmID);
else if (alarmItem == "Local Disk" || alarmItem == "External")
serverMonitor.checkDiskAlarm(alarmItem, alarmID);
else if (alarmItem == "Local Memory")
serverMonitor.checkMemoryAlarm(alarmItem, alarmID);
else if (alarmItem == "Local Swap")
serverMonitor.checkSwapAlarm(alarmItem, alarmID);
// don't issue an alarm on thge dbroots is already issued by this or another server
if ( alarmItem.find(startup::StartUp::installDir() + "/data") == 0 ) {
// check if Alarm is already active from any module, don't resend
if ( !( oam.checkActiveAlarm(alarmID, "*", alarmItem)) ) {
SNMPManager alarmMgr;
// send alarm
alarmMgr.sendAlarmReport(alarmItem.c_str(), alarmID, action);
args.add(", Alarm set: ");
args.add(alarmID);
msg.format(args);
ml.logInfoMessage(msg);
return true;
}
else
return false;
}
else
{
// check if Alarm is already active from this module, don't resend
if ( !( oam.checkActiveAlarm(alarmID, moduleName, alarmItem)) ) {
SNMPManager alarmMgr;
// send alarm
alarmMgr.sendAlarmReport(alarmItem.c_str(), alarmID, action);
args.add(", Alarm set: ");
args.add(alarmID);
msg.format(args);
ml.logInfoMessage(msg);
return true;
}
else
return false;
}
return true;
}
/*****************************************************************************************
* @brief diskMonitor Thread
*
* purpose: Get current Local and External disk usage and report alarms
*
*****************************************************************************************/
void diskMonitor()
{
ServerMonitor serverMonitor;
Oam oam;
SystemConfig systemConfig;
ModuleTypeConfig moduleTypeConfig;
typedef std::vector<std::string> LocalFileSystems;
LocalFileSystems lfs;
struct statvfs buf;
// set defaults
int localDiskCritical = 90,
localDiskMajor = 80,
localDiskMinor = 70,
ExternalDiskCritical = 90,
ExternalDiskMajor = 80,
ExternalDiskMinor = 70;
// get module types
string moduleType;
int moduleID=-1;
string moduleName;
oamModuleInfo_t t;
try {
t = oam.getModuleInfo();
moduleType = boost::get<1>(t);
moduleID = boost::get<2>(t);
moduleName = boost::get<0>(t);
}
catch (exception& e) {}
bool Externalflag = false;
//check for external disk
DBrootList dbrootList;
if (moduleType == "pm") {
systemStorageInfo_t t;
t = oam.getStorageConfig();
if ( boost::get<0>(t) == "external")
Externalflag = true;
// get dbroot list and storage type from config file
DBRootConfigList dbrootConfigList;
oam.getPmDbrootConfig(moduleID, dbrootConfigList);
DBRootConfigList::iterator pt = dbrootConfigList.begin();
for( ; pt != dbrootConfigList.end() ; pt++)
{
int dbrootID = *pt;
string dbroot = "DBRoot" + oam.itoa(dbrootID);
string dbootdir;
try{
oam.getSystemConfig(dbroot, dbootdir);
}
catch(...) {}
if ( dbootdir.empty() || dbootdir == "" )
continue;
DBrootData dbrootData;
dbrootData.dbrootDir = dbootdir;
dbrootData.downFlag = false;
dbrootList.push_back(dbrootData);
}
}
string cloud = oam::UnassignedName;
try {
oam.getSystemConfig( "Cloud", cloud);
}
catch(...) {
cloud = oam::UnassignedName;
}
//get Gluster Config setting
string GlusterConfig = "n";
try {
oam.getSystemConfig( "GlusterConfig", GlusterConfig);
}
catch(...)
{
GlusterConfig = "n";
}
int diskSpaceCheck = 0;
while(true)
{
SystemStatus systemstatus;
try {
oam.getSystemStatus(systemstatus);
}
catch (exception& ex)
{}
if (systemstatus.SystemOpState != oam::ACTIVE ) {
sleep(5);
continue;
}
// Get Local/External Disk Mount points to monitor and associated thresholds
try {
oam.getSystemConfig (moduleTypeConfig);
localDiskCritical = moduleTypeConfig.ModuleDiskCriticalThreshold;
localDiskMajor = moduleTypeConfig.ModuleDiskMajorThreshold;
localDiskMinor = moduleTypeConfig.ModuleDiskMinorThreshold;
DiskMonitorFileSystems::iterator p = moduleTypeConfig.FileSystems.begin();
for( ; p != moduleTypeConfig.FileSystems.end() ; p++)
{
string fs = *p;
lfs.push_back(fs);
if (DISK_DEBUG) {
//Log this event
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Local Config File System to monitor =");
args.add(fs);
msg.format(args);
ml.logDebugMessage(msg);
}
}
} catch (...)
{
sleep(5);
continue;
}
// get External info
try
{
oam.getSystemConfig(systemConfig);
} catch (...)
{
sleep(5);
continue;
}
if (Externalflag) {
// get External info
try
{
ExternalDiskCritical = systemConfig.ExternalCriticalThreshold;
ExternalDiskMajor = systemConfig.ExternalMajorThreshold;
ExternalDiskMinor = systemConfig.ExternalMinorThreshold;
} catch (...)
{
sleep(5);
continue;
}
}
//check for local file systems
LocalFileSystems::iterator p = lfs.begin();
while(p != lfs.end())
{
string deviceName = *p;
++p;
string fileName;
// check local
if ( deviceName == "/") {
fileName = deviceName + "usr/local/Calpont/releasenum";
}
else
{
fileName = deviceName + "/000.dir";
}
uint64_t totalBlocks;
uint64_t usedBlocks;
if (!statvfs(fileName.c_str(), &buf)) {
uint64_t blksize, blocks, freeblks, free;
blksize = buf.f_bsize;
blocks = buf.f_blocks;
freeblks = buf.f_bfree;
totalBlocks = blocks * blksize;
free = freeblks * blksize;
usedBlocks = totalBlocks - free;
}
else
continue;
int64_t diskUsage = 0;
if ( totalBlocks == 0 ) {
diskUsage = 0;
//Log this event
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Total Disk Usage is set to 0");
msg.format(args);
ml.logWarningMessage(msg);
}
else
diskUsage = (usedBlocks / (totalBlocks / 100)) + 1;
SMSystemDisk sd;
sd.deviceName = deviceName;
sd.usedPercent = diskUsage;
sd.totalBlocks = totalBlocks;
sd.usedBlocks = usedBlocks;
sdl.push_back(sd);
if (DISK_DEBUG)
cout << "Disk Usage for " << deviceName << " is " << diskUsage << endl;
if ( diskSpaceCheck == 0 )
{
if (diskUsage >= localDiskCritical && localDiskCritical > 0 ) {
//adjust if over 100%
if ( diskUsage > 100 )
diskUsage = 100;
if ( serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_HIGH, SET, (int) diskUsage) )
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Local Disk above Critical Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else if (diskUsage >= localDiskMajor && localDiskMajor > 0 ) {
if (serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_MED, SET, (int) diskUsage))
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Local Disk above Major Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else if (diskUsage >= localDiskMinor && localDiskMinor > 0 ) {
if ( serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_LOW, SET, (int) diskUsage))
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Local Disk above Minor Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else
serverMonitor.checkDiskAlarm(deviceName);
}
//check for external file systems/devices
if (Externalflag ||
(!Externalflag && GlusterConfig == "y" && moduleType == "pm") ){
try
{
DBRootConfigList dbrootConfigList;
oam.getPmDbrootConfig(moduleID, dbrootConfigList);
DBRootConfigList::iterator pt = dbrootConfigList.begin();
for( ; pt != dbrootConfigList.end() ; pt++)
{
int dbroot = *pt;
string deviceName = systemConfig.DBRoot[dbroot-1];
string fileName = deviceName + "/000.dir";
if (DISK_DEBUG) {
//Log this event
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("DBRoots monitoring");
args.add(dbroot);
args.add(" ,file system =" );
args.add(fileName);
msg.format(args);
ml.logDebugMessage(msg);
}
uint64_t totalBlocks;
uint64_t usedBlocks;
if (!statvfs(fileName.c_str(), &buf)) {
uint64_t blksize, blocks, freeblks, free;
blksize = buf.f_bsize;
blocks = buf.f_blocks;
freeblks = buf.f_bfree;
totalBlocks = blocks * blksize;
free = freeblks * blksize;
usedBlocks = totalBlocks - free;
}
else
{
SMSystemDisk sd;
sd.deviceName = deviceName;
sd.usedPercent = 0;
sd.totalBlocks = 0;
sd.usedBlocks = 0;
sdl.push_back(sd);
continue;
}
int diskUsage = 0;
if ( totalBlocks == 0 ) {
diskUsage = 0;
//Log this event
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Total Disk Usage is set to 0");
msg.format(args);
ml.logWarningMessage(msg);
}
else
diskUsage = (usedBlocks / (totalBlocks / 100)) + 1;
SMSystemDisk sd;
sd.deviceName = deviceName;
sd.usedPercent = diskUsage;
sd.totalBlocks = totalBlocks;
sd.usedBlocks = usedBlocks;
sdl.push_back(sd);
if (DISK_DEBUG)
cout << "Disk Usage for " << deviceName << " is " << diskUsage << endl;
if (diskUsage >= ExternalDiskCritical && ExternalDiskCritical > 0 ) {
//adjust if over 100%
if ( diskUsage > 100 )
diskUsage = 100;
if ( serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_HIGH, SET, diskUsage))
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Disk usage for");
args.add(deviceName);
args.add(" above Critical Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else if (diskUsage >= ExternalDiskMajor && ExternalDiskMajor > 0 ) {
if ( serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_MED, SET, diskUsage))
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Disk usage for");
args.add(deviceName);
args.add(" above Major Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else if (diskUsage >= ExternalDiskMinor && ExternalDiskMinor > 0 ) {
if ( serverMonitor.sendResourceAlarm(deviceName, DISK_USAGE_LOW, SET, diskUsage))
{
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Disk usage for");
args.add(deviceName);
args.add(" above Minor Disk threshold with a percentage of ");
args.add((int) diskUsage);
msg.format(args);
ml.logInfoMessage(msg);
}
}
else
serverMonitor.checkDiskAlarm(deviceName);
}
}
catch (exception& e)
{
cout << endl << "**** getPmDbrootConfig Failed : " << e.what() << endl;
}
}
}
//check OAM dbroot test flag to validate dbroot exist if on pm
if ( moduleName.find("pm") != string::npos ) {
//check OAM dbroot test flag to validate dbroot exist
if ( dbrootList.size() != 0 ) {
DBrootList::iterator p = dbrootList.begin();
while ( p != dbrootList.end() )
{
//get dbroot directory
string dbrootDir = (*p).dbrootDir;
string dbrootName;
string dbrootID;
//get dbroot name
string::size_type pos = dbrootDir.rfind("/",80);
if (pos != string::npos)
dbrootName = dbrootDir.substr(pos+1,80);
//get ID
dbrootID = dbrootName.substr(4,80);
string fileName = dbrootDir + "/OAMdbrootCheck";
// retry in case we hit the remount window
for ( int retry = 0 ; ; retry++ )
{
bool fail = false;
//first test, check if OAMdbrootCheck exists
ifstream file (fileName.c_str());
if (!file)
fail = true;
else
{ //second test for amazon, check volume status
if ( cloud != oam::UnassignedName ) {
string volumeNameID = "PMVolumeName" + dbrootID;
string volumeName = oam::UnassignedName;
try {
oam.getSystemConfig( volumeNameID, volumeName);
}
catch(...)
{}
if ( volumeName.empty() || volumeName == oam::UnassignedName )
fail = false;
else
{
string status = oam.getEC2VolumeStatus(volumeName);
if ( status == "attached" )
fail = false;
else
{
fail = true;
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("dbroot monitoring: Volume not attached");
args.add(volumeName);
args.add("/");
args.add(dbrootName);
msg.format(args);
ml.logCriticalMessage(msg);
}
}
}
else
fail = false;
}
if (fail) {
//double check system status before reporting any error BUG 5078
SystemStatus systemstatus;
try {
oam.getSystemStatus(systemstatus);
}
catch (exception& ex)
{}
if (systemstatus.SystemOpState != oam::ACTIVE ) {
break;
}
if ( retry < 10 ) {
sleep(3);
continue;
}
else
{
if ( !(*p).downFlag ) {
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("dbroot monitoring: Lost access to ");
args.add(dbrootDir);
msg.format(args);
ml.logCriticalMessage(msg);
oam.sendDeviceNotification(dbrootName, DBROOT_DOWN, moduleName);
(*p).downFlag = true;
try{
oam.setDbrootStatus(dbrootID, oam::AUTO_OFFLINE);
}
catch (exception& ex)
{}
break;
}
}
}
else
{
if ( (*p).downFlag ) {
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("dbroot monitoring: Access back to ");
args.add(dbrootDir);
msg.format(args);
ml.logInfoMessage(msg);
oam.sendDeviceNotification(dbrootName, DBROOT_UP, moduleName);
(*p).downFlag = false;
try{
oam.setDbrootStatus(dbrootID, oam::ACTIVE);
}
catch (exception& ex)
{}
}
file.close();
break;
}
}
p++;
}
}
}
//do Gluster status check, if configured
if ( GlusterConfig == "y")
{
bool pass = true;
string errmsg = "unknown";
try {
string arg1 = "";
string arg2 = "";
int ret = oam.glusterctl(oam::GLUSTER_STATUS, arg1, arg2, errmsg);
if ( ret != 0 )
{
cerr << "FAILURE: Status check error: " + errmsg << endl;
pass = false;
}
}
catch (exception& e)
{
cerr << endl << "**** glusterctl API exception: " << e.what() << endl;
cerr << "FAILURE: Status check error" << endl;
pass = false;
}
catch (...)
{
cerr << endl << "**** glusterctl API exception: UNKNOWN" << endl;
cerr << "FAILURE: Status check error" << endl;
pass = false;
}
if ( !pass )
{ // issue log and alarm
LoggingID lid(SERVER_MONITOR_LOG_ID);
MessageLog ml(lid);
Message msg;
Message::Args args;
args.add("Gluster Status check failure error msg: ");
args.add(errmsg);
msg.format(args);
ml.logWarningMessage(msg);
serverMonitor.sendResourceAlarm(errmsg, GLUSTER_DISK_FAILURE, SET, 0);
}
}
// sleep 10 seconds
sleep(MONITOR_PERIOD/6);
//check disk space every 10 minutes
diskSpaceCheck++;
if ( diskSpaceCheck >= 60 )
diskSpaceCheck = 0;
lfs.clear();
sdl.clear();
} // end of while loop
}