/** Asynchronously lazy persist the block from the RamDisk to Disk. */
void submitLazyPersistTask(
String bpId,
long blockId,
long genStamp,
long creationTime,
File metaFile,
File blockFile,
FsVolumeReference target)
throws IOException {
if (LOG.isDebugEnabled()) {
LOG.debug(
"LazyWriter schedule async task to persist RamDisk block pool id: "
+ bpId
+ " block id: "
+ blockId);
}
FsVolumeImpl volume = (FsVolumeImpl) target.getVolume();
File 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());
}
ReplicaLazyPersistTask lazyPersistTask =
new ReplicaLazyPersistTask(
bpId, blockId, genStamp, creationTime, blockFile, metaFile, target, lazyPersistDir);
execute(volume.getCurrentDir(), lazyPersistTask);
}
