protected FileSystemDTO addRWFileSystem(FileSystemDTO fsDTO) throws Exception {
FileSystemDTO dto = fileSystemMgt().addAndLinkFileSystem(fsDTO);
if (dto.getStatus() == FileSystemStatus.DEF_RW) {
storageFileSystem = dto;
}
return dto;
}
public long updateMinFreeDiskSpaceFromSrcFSGroup() throws Exception {
String mfd =
(String)
server.getAttribute(
new ObjectName(getFileSystemMgtServiceNamePrefix() + srcFsGroup),
"MinimumFreeDiskSpace");
log.info("getMinFreeDiskSpaceFromSrcFS group:" + srcFsGroup + " minFree:" + mfd);
if (mfd.equalsIgnoreCase(NONE)) return 0;
if (mfd.endsWith("%")) {
float ratio = Float.parseFloat(mfd.substring(0, mfd.length() - 1));
FileSystemDTO[] fsDTOs = fileSystemMgt().getFileSystemsOfGroup(srcFsGroup);
long total = 0L;
for (FileSystemDTO fsDTO : fsDTOs) {
int status = fsDTO.getStatus();
if (status == FileSystemStatus.RW || status == FileSystemStatus.DEF_RW) {
File dir = FileUtils.toFile(fsDTO.getDirectoryPath());
if (dir.isDirectory()) {
total += FileSystemUtils.totalSpace(dir.getPath());
}
}
}
minFree = (long) (total * ratio / 100);
} else {
minFree = FileUtils.parseSize(mfd, MIN_FREE_DISK_SPACE);
}
return minFree;
}
private void checkStorageFileSystemStatus(FileSystemMgt2 fsMgt)
throws FinderException, RemoteException {
try {
FileSystemDTO tmpFS = fsMgt.getFileSystem(storageFileSystem.getPk());
if (tmpFS.getStatus() == FileSystemStatus.DEF_RW) {
return;
}
log.info("Status of previous storage file system changed: " + storageFileSystem);
} catch (ObjectNotFoundException onfe) {
log.info(
"Previous storage file system: " + storageFileSystem + " was removed from configuration");
}
storageFileSystem = fsMgt.getDefRWFileSystemsOfGroup(getFileSystemGroupID());
if (storageFileSystem != null) {
log.info("New storage file system: " + storageFileSystem);
}
if (minFreeDiskSpaceRatio > 0) {
minFreeDiskSpace = calcFreeDiskSpace(storageFileSystem);
}
checkFreeDiskSpaceTime = 0;
}
private boolean switchFileSystem(FileSystemMgt2 fsMgt, FileSystemDTO fsDTO) throws Exception {
synchronized (switchFileSystemMonitor) {
if (!updateStorageFileSystem(fsMgt)) {
return selectStorageFileSystem() != null;
}
if (storageFileSystem == null || fsDTO == null) {
log.info("Storage filesystem not set! No RW filesystem configured or no space left!");
return false;
} else if (storageFileSystem.getPk() != fsDTO.getPk()) {
log.info(
"Storage file system has already been switched from "
+ fsDTO
+ " to "
+ storageFileSystem
+ " by another thread.");
return true;
}
FileSystemDTO tmp = storageFileSystem;
String next;
while ((next = tmp.getNext()) != null && !next.equals(storageFileSystem.getDirectoryPath())) {
tmp = fsMgt.getFileSystemOfGroup(getFileSystemGroupID(), next);
if (minFreeDiskSpaceRatio > 0) {
minFreeDiskSpace = calcFreeDiskSpace(tmp);
}
if (tmp.getStatus() == FileSystemStatus.RW
&& tmp.getAvailability() == Availability.toInt(getDefAvailability())
&& checkFreeDiskSpace(tmp)) {
storageFileSystem = fsMgt.updateFileSystemStatus(tmp.getPk(), FileSystemStatus.DEF_RW);
log.info("Switch storage file system from " + fsDTO + " to " + storageFileSystem);
sendJMXNotification(new StorageFileSystemSwitched(fsDTO, storageFileSystem));
return true;
}
}
return false;
}
}
