public static void getServerCpuInfo(Sigar sigar, ServerStatus status) {
try {
CpuInfo infos[] = sigar.getCpuInfoList();
CpuPerc cpuList[] = sigar.getCpuPercList();
double totalUse = 0L;
for (int i = 0; i < infos.length; i++) {
CpuPerc perc = cpuList[i];
ServerStatus.CpuInfoVo cpuInfo = new ServerStatus.CpuInfoVo();
cpuInfo.setId(infos[i].hashCode() + "");
cpuInfo.setCacheSize(infos[i].getCacheSize());
cpuInfo.setModel(infos[i].getModel());
cpuInfo.setUsed(CpuPerc.format(perc.getCombined()));
cpuInfo.setUsedOrigVal(perc.getCombined());
cpuInfo.setIdle(CpuPerc.format(perc.getIdle()));
cpuInfo.setTotalMHz(infos[i].getMhz());
cpuInfo.setVendor(infos[i].getVendor());
status.getCpuInfos().add(cpuInfo);
totalUse += perc.getCombined();
}
String cpuu = CpuPerc.format(totalUse / status.getCpuInfos().size());
cpuu = cpuu.substring(0, cpuu.length() - 1);
status.setCpuUsage(cpuu);
} catch (Exception e) {
}
}
public static void getServerMemoryInfo(Sigar sigar, ServerStatus status) {
try {
Mem mem = sigar.getMem();
status.setTotalMem(mem.getTotal() / (1024 * 1024));
status.setUsedMem(mem.getUsed() / (1024 * 1024));
status.setFreeMem(mem.getFree() / (1024 * 1024));
// 交换区
Swap swap = sigar.getSwap();
status.setTotalSwap(swap.getTotal() / (1024 * 1024));
status.setUsedSwap(swap.getUsed() / (1024 * 1024));
status.setFreeSwap(swap.getFree() / (1024 * 1024));
} catch (Exception e) {
}
}
public static void getServerDiskInfo(Sigar sigar, ServerStatus status) {
try {
FileSystem fslist[] = sigar.getFileSystemList();
FileSystemUsage usage = null;
for (int i = 0; i < fslist.length; i++) {
FileSystem fs = fslist[i];
switch (fs.getType()) {
case 0: // TYPE_UNKNOWN ：未知
case 1: // TYPE_NONE
case 3: // TYPE_NETWORK ：网络
case 4: // TYPE_RAM_DISK ：闪存
case 5: // TYPE_CDROM ：光驱
case 6: // TYPE_SWAP ：页面交换
break;
case 2: // TYPE_LOCAL_DISK : 本地硬盘
ServerStatus.DiskInfoVo disk = new ServerStatus.DiskInfoVo();
disk.setDevName(fs.getDevName());
disk.setDirName(fs.getDirName());
usage = sigar.getFileSystemUsage(fs.getDirName());
disk.setTotalSize(usage.getTotal() / (1024 * 1024));
// disk.setFreeSize(usage.getFree()/(1024*1024));
disk.setAvailSize(usage.getAvail() / (1024 * 1024));
disk.setUsedSize(usage.getUsed() / (1024 * 1024));
disk.setUsePercent(usage.getUsePercent() * 100D + "%");
disk.setTypeName(fs.getTypeName());
disk.setSysTypeName(fs.getSysTypeName());
String val = diskWritesAndReadsOnInit.get(fs.getDevName());
if (val != null) {
long timePeriod = (System.currentTimeMillis() - initTime) / 1000;
long origRead = Long.parseLong(val.split("\\|")[0]);
long origWrite = Long.parseLong(val.split("\\|")[1]);
disk.setDiskReadRate((usage.getDiskReadBytes() - origRead) / timePeriod);
disk.setDiskWriteRate((usage.getDiskWriteBytes() - origWrite) / timePeriod);
}
status.getDiskInfos().add(disk);
}
}
} catch (Exception e) {
}
}
static {
initTime = System.currentTimeMillis();
resetClasspath();
Sigar sigar = null;
try {
sigar = new Sigar();
FileSystem[] fslist = sigar.getFileSystemList();
FileSystemUsage usage = null;
for (int i = 0; i < fslist.length; i++) {
FileSystem fs = fslist[i];
if (fs.getType() != 2) continue;
usage = sigar.getFileSystemUsage(fs.getDirName());
diskWritesAndReadsOnInit.put(
fs.getDevName(), usage.getDiskReadBytes() + "|" + usage.getDiskWriteBytes());
}
} catch (Exception e) {
} finally {
if (sigar != null) sigar.close();
}
}
public SigarLibrary() {
logger.info("Initializing SIGAR library");
try {
sigar = new Sigar();
mounts = sigar.getFileSystemMap();
initialized = true;
} catch (SigarException e) {
logger.info("Could not initialize SIGAR library {} ", e.getMessage());
} catch (UnsatisfiedLinkError linkError) {
logger.info("Could not initialize SIGAR library {} ", linkError.getMessage());
}
}
private boolean hasAcceptableProcNumber() {
try {
long fileMax = sigar.getResourceLimit().getProcessesMax();
if (fileMax >= EXPECTED_NPROC || fileMax == INFINITY) {
return true;
} else {
return false;
}
} catch (SigarException sigarException) {
logger.warn(
"Could not determine if max processes was acceptable. Error message: {}", sigarException);
return false;
}
}
private boolean hasAcceptableFileLimits() {
try {
long fileMax = sigar.getResourceLimit().getOpenFilesMax();
if (fileMax >= EXPECTED_MIN_NOFILE || fileMax == INFINITY) {
return true;
} else {
return false;
}
} catch (SigarException sigarException) {
logger.warn(
"Could not determine if max open file handle limit is correctly configured. Error message: {}",
sigarException);
return false;
}
}
private boolean isSwapEnabled() {
try {
Swap swap = sigar.getSwap();
long swapSize = swap.getTotal();
if (swapSize > 0) {
return true;
} else {
return false;
}
} catch (SigarException sigarException) {
logger.warn(
"Could not determine if swap configuration is acceptable. Error message: {}",
sigarException);
return false;
}
}
private boolean hasAcceptableAddressSpace() {
// Check is invalid on Windows
if (FBUtilities.isWindows()) return true;
try {
long fileMax = sigar.getResourceLimit().getVirtualMemoryMax();
if (fileMax == EXPECTED_AS) {
return true;
} else {
return false;
}
} catch (SigarException sigarException) {
logger.warn(
"Could not determine if VirtualMemoryMax was acceptable. Error message: {}",
sigarException);
return false;
}
}
