Package org.apache.hadoop.hdfs.server.namenode.bookkeeper.metadata.proto

Examples of org.apache.hadoop.hdfs.server.namenode.bookkeeper.metadata.proto.EditLogLedgerMetadataWritable

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    String fullyQualifiedInProgressPath =
        fullyQualifiedPathForLedger(nameForLedger(firstTxId, -1));
    // TODO: try using a ThreadLocal here as well. Will test this once unit
    // test is written for this method
    Stat stat = new Stat();
    EditLogLedgerMetadataWritable metadataWritable = readWritableFromZk(
        fullyQualifiedInProgressPath, localWritable.get(), stat);
    return metadataWritable == null ?
        null : Versioned.of(stat.getVersion(), metadataWritable.get());
  }
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   * @throws IOException If there as an unrecoverable error communicating with
   *                     ZooKeeper
   */
  public EditLogLedgerMetadata readEditLogLedgerMetadata(
      String fullyQualifiedPath) throws IOException {
    EditLogLedgerMetadataWritable writable = localWritable.get();
    writable = readWritableFromZk(fullyQualifiedPath, writable, null);
    return writable == null ? null : writable.get();
  }
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      EditLogLedgerMetadata editLogLedgerMetadata) throws IOException {
    if (LOG.isDebugEnabled()) {
      LOG.debug("Attempting to write " + editLogLedgerMetadata + " to " +
          fullyQualifiedPath);
    }
    EditLogLedgerMetadataWritable writable = localWritable.get();
    writable.set(editLogLedgerMetadata);
    byte[] data = WritableUtil.writableToByteArray(writable);
    try {
      if (zooKeeper.exists(fullyQualifiedPath, false) != null) {
        LOG.warn(fullyQualifiedPath + " already exists. Will not override!");
        return false;
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Related Classes of org.apache.hadoop.hdfs.server.namenode.bookkeeper.metadata.proto.EditLogLedgerMetadataWritable

  • org.apache.hadoop.hdfs.server.namenode.bookkeeper.metadata.BookKeeperJournalMetadataManager
  • org.apache.hadoop.hdfs.server.namenode.bookkeeper.metadata.EditLogLedgerMetadata
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