Package voldemort.store.readonly

Examples of voldemort.store.readonly.ReadOnlyStorageMetadata.toJsonString()

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        ReadOnlyStorageMetadata metadata = new ReadOnlyStorageMetadata();
        metadata.add(ReadOnlyStorageMetadata.FORMAT, ReadOnlyStorageFormat.READONLY_V2.getCode());

        File metadataFile = new File(versionDir, ".metadata");
        BufferedWriter writer = new BufferedWriter(new FileWriter(metadataFile));
        writer.write(metadata.toJsonString());
        writer.close();

        for(Entry<Integer, List<Integer>> entry: buckets.entrySet()) {
            int replicaType = entry.getKey();
            for(int partitionId: entry.getValue()) {
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        // Check if metadata file exists. If not, create one with RO2 format.
        if (!metadataFile.exists()) {
            metadata.add(ReadOnlyStorageMetadata.FORMAT, ReadOnlyStorageFormat.READONLY_V2.getCode());
            try {
                FileUtils.writeStringToFile(metadataFile, metadata.toJsonString());
            } catch(IOException e) {
                logger.error("Cannot create metadata file ", e);
                throw new IOException("Unable to create metadata file " + metadataFile);
            }
        }
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                // Write metadata
                Path metadataPath = new Path(nodePath, ".metadata");
                FSDataOutputStream metadataStream = outputFs.create(metadataPath);
                outputFs.setPermission(metadataPath, new FsPermission(HADOOP_FILE_PERMISSION));
                logger.info("Setting permission to 755 for " + metadataPath);
                metadataStream.write(metadata.toJsonString().getBytes());
                metadataStream.flush();
                metadataStream.close();

            }
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