/** * Save the contents of the FS image to the file. */ void saveFSImage(SaveNamespaceContext context, StorageDirectory sd, NameNodeFile dstType) throws IOException { long txid = context.getTxId(); File newFile = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE_NEW, txid); File dstFile = NNStorage.getStorageFile(sd, dstType, txid); FSImageFormatProtobuf.Saver saver = new FSImageFormatProtobuf.Saver(context); FSImageCompression compression = FSImageCompression.createCompression(conf); long numErrors = saver.save(newFile, compression); if (numErrors > 0) { // The image is likely corrupted. LOG.error("Detected " + numErrors + " errors while saving FsImage " + dstFile); exitAfterSave.set(true); } MD5FileUtils.saveMD5File(dstFile, saver.getSavedDigest()); storage.setMostRecentCheckpointInfo(txid, Time.now()); }
/** Save the fsimage to a temp file */ private File saveFSImageToTempFile() throws IOException { SaveNamespaceContext context = new SaveNamespaceContext(fsn, txid, new Canceler()); FSImageFormatProtobuf.Saver saver = new FSImageFormatProtobuf.Saver(context); FSImageCompression compression = FSImageCompression.createCompression(conf); File imageFile = getImageFile(testDir, txid); fsn.readLock(); try { saver.save(imageFile, compression); } finally { fsn.readUnlock(); } return imageFile; }
/** * Save the contents of the FS image to the file. */ void saveFSImage(SaveNamespaceContext context, StorageDirectory sd, NameNodeFile dstType) throws IOException { long txid = context.getTxId(); File newFile = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE_NEW, txid); File dstFile = NNStorage.getStorageFile(sd, dstType, txid); FSImageFormatProtobuf.Saver saver = new FSImageFormatProtobuf.Saver(context); FSImageCompression compression = FSImageCompression.createCompression(conf); saver.save(newFile, compression); MD5FileUtils.saveMD5File(dstFile, saver.getSavedDigest()); storage.setMostRecentCheckpointInfo(txid, Time.now()); }
/** * Save the contents of the FS image to the file. */ void saveFSImage(SaveNamespaceContext context, StorageDirectory sd, NameNodeFile dstType) throws IOException { long txid = context.getTxId(); File newFile = NNStorage.getStorageFile(sd, NameNodeFile.IMAGE_NEW, txid); File dstFile = NNStorage.getStorageFile(sd, dstType, txid); FSImageFormatProtobuf.Saver saver = new FSImageFormatProtobuf.Saver(context); FSImageCompression compression = FSImageCompression.createCompression(conf); saver.save(newFile, compression); MD5FileUtils.saveMD5File(dstFile, saver.getSavedDigest()); storage.setMostRecentCheckpointInfo(txid, Time.now()); }