/// <summary>Set the namespace, storagespace and typespace quota for a directory.</summary>
/// <remarks>
/// Set the namespace, storagespace and typespace quota for a directory.
/// Note: This does not support ".inodes" relative path.
/// </remarks>
/// <exception cref="System.IO.IOException"/>
internal static void SetQuota(FSDirectory fsd, string src, long nsQuota, long ssQuota
, StorageType type)
{
if (fsd.IsPermissionEnabled())
{
FSPermissionChecker pc = fsd.GetPermissionChecker();
pc.CheckSuperuserPrivilege();
}
fsd.WriteLock();
try
{
INodeDirectory changed = UnprotectedSetQuota(fsd, src, nsQuota, ssQuota, type);
if (changed != null)
{
QuotaCounts q = changed.GetQuotaCounts();
if (type == null)
{
fsd.GetEditLog().LogSetQuota(src, q.GetNameSpace(), q.GetStorageSpace());
}
else
{
fsd.GetEditLog().LogSetQuotaByStorageType(src, q.GetTypeSpaces().Get(type), type);
}
}
}
finally
{
fsd.WriteUnlock();
}
}
/// <exception cref="System.IO.IOException"/>
internal static void ModifyCachePool(FSNamesystem fsn, CacheManager cacheManager,
CachePoolInfo req, bool logRetryCache)
{
FSPermissionChecker pc = GetFsPermissionChecker(fsn);
if (pc != null)
{
pc.CheckSuperuserPrivilege();
}
cacheManager.ModifyCachePool(req);
fsn.GetEditLog().LogModifyCachePool(req, logRetryCache);
}
/// <exception cref="System.IO.IOException"/>
internal static void RemoveCachePool(FSNamesystem fsn, CacheManager cacheManager,
string cachePoolName, bool logRetryCache)
{
FSPermissionChecker pc = GetFsPermissionChecker(fsn);
if (pc != null)
{
pc.CheckSuperuserPrivilege();
}
cacheManager.RemoveCachePool(cachePoolName);
fsn.GetEditLog().LogRemoveCachePool(cachePoolName, logRetryCache);
}
/// <exception cref="System.IO.IOException"/>
internal static CachePoolInfo AddCachePool(FSNamesystem fsn, CacheManager cacheManager
, CachePoolInfo req, bool logRetryCache)
{
FSPermissionChecker pc = GetFsPermissionChecker(fsn);
if (pc != null)
{
pc.CheckSuperuserPrivilege();
}
CachePoolInfo info = cacheManager.AddCachePool(req);
fsn.GetEditLog().LogAddCachePool(info, logRetryCache);
return(info);
}