fsd.writeUnlock(); removedINodes.clear(); fsd.getEditLog().logDeleteSnapshot(snapshotRoot, snapshotName, logRetryCache);
/** * Delete a snapshot of a snapshottable directory * @param snapshotRoot The snapshottable directory * @param snapshotName The name of the to-be-deleted snapshot * @throws IOException */ static INode.BlocksMapUpdateInfo deleteSnapshot( FSDirectory fsd, SnapshotManager snapshotManager, String snapshotRoot, String snapshotName, boolean logRetryCache) throws IOException { final INodesInPath iip = fsd.getINodesInPath4Write(snapshotRoot); if (fsd.isPermissionEnabled()) { FSPermissionChecker pc = fsd.getPermissionChecker(); fsd.checkOwner(pc, iip); } INode.BlocksMapUpdateInfo collectedBlocks = new INode.BlocksMapUpdateInfo(); ChunkedArrayList<INode> removedINodes = new ChunkedArrayList<INode>(); fsd.writeLock(); try { snapshotManager.deleteSnapshot(iip, snapshotName, collectedBlocks, removedINodes); fsd.removeFromInodeMap(removedINodes); } finally { fsd.writeUnlock(); } removedINodes.clear(); fsd.getEditLog().logDeleteSnapshot(snapshotRoot, snapshotName, logRetryCache); return collectedBlocks; }
/** * Delete a snapshot of a snapshottable directory * @param snapshotRoot The snapshottable directory * @param snapshotName The name of the to-be-deleted snapshot * @throws IOException */ static INode.BlocksMapUpdateInfo deleteSnapshot( FSDirectory fsd, SnapshotManager snapshotManager, String snapshotRoot, String snapshotName, boolean logRetryCache) throws IOException { final INodesInPath iip = fsd.getINodesInPath4Write(snapshotRoot); if (fsd.isPermissionEnabled()) { FSPermissionChecker pc = fsd.getPermissionChecker(); fsd.checkOwner(pc, iip); } INode.BlocksMapUpdateInfo collectedBlocks = new INode.BlocksMapUpdateInfo(); ChunkedArrayList<INode> removedINodes = new ChunkedArrayList<INode>(); fsd.writeLock(); try { snapshotManager.deleteSnapshot(iip, snapshotName, collectedBlocks, removedINodes); fsd.removeFromInodeMap(removedINodes); } finally { fsd.writeUnlock(); } removedINodes.clear(); fsd.getEditLog().logDeleteSnapshot(snapshotRoot, snapshotName, logRetryCache); return collectedBlocks; }