/// <summary>Asynchronously lazy persist the block from the RamDisk to Disk.</summary>
/// <exception cref="System.IO.IOException"/>
internal virtual void SubmitLazyPersistTask(string bpId, long blockId, long genStamp
, long creationTime, FilePath metaFile, FilePath blockFile, FsVolumeReference target
)
{
if (Log.IsDebugEnabled())
{
Log.Debug("LazyWriter schedule async task to persist RamDisk block pool id: " + bpId
+ " block id: " + blockId);
}
FsVolumeImpl volume = (FsVolumeImpl)target.GetVolume();
FilePath lazyPersistDir = volume.GetLazyPersistDir(bpId);
if (!lazyPersistDir.Exists() && !lazyPersistDir.Mkdirs())
{
FsDatasetImpl.Log.Warn("LazyWriter failed to create " + lazyPersistDir);
throw new IOException("LazyWriter fail to find or create lazy persist dir: " + lazyPersistDir
.ToString());
}
RamDiskAsyncLazyPersistService.ReplicaLazyPersistTask lazyPersistTask = new RamDiskAsyncLazyPersistService.ReplicaLazyPersistTask
(this, bpId, blockId, genStamp, creationTime, blockFile, metaFile, target, lazyPersistDir
);
Execute(volume.GetCurrentDir(), lazyPersistTask);
}