Examples of com.continuuity.tephra.persist.HDFSTransactionStateStorage

com.continuuity.tephra.persist.HDFSTransactionStateStorage
Handles persistence of transaction snapshot and logs to a directory in HDFS. The directory used for file storage is configured using the {@code data.tx.snapshot.dir} configuration property.Both snapshot and transaction log files are suffixed with a timestamp to allow easy ordering. Snapshot files are written with the filename "snapshot.<timestamp>". Transaction log files are written with the filename "txlog.<timestamp>".

   */
  private void tryInit() {
    try {
      Configuration conf = getSnapshotConfiguration();
      if (conf != null) {
        this.storage = new HDFSTransactionStateStorage(conf, new SnapshotCodecProvider(conf));
        this.storage.startAndWait();
        this.snapshotRefreshFrequency = conf.getLong(TxConstants.Manager.CFG_TX_SNAPSHOT_INTERVAL,
                                                     TxConstants.Manager.DEFAULT_TX_SNAPSHOT_INTERVAL) * 1000;
        this.initialized = true;
      } else {

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   */
  private void tryInit() {
    try {
      Configuration conf = getSnapshotConfiguration();
      if (conf != null) {
        this.storage = new HDFSTransactionStateStorage(hConf, new SnapshotCodecProvider(conf));
        this.storage.startAndWait();
        this.snapshotRefreshFrequency = conf.getLong(TxConstants.Manager.CFG_TX_SNAPSHOT_INTERVAL,
                                                     TxConstants.Manager.DEFAULT_TX_SNAPSHOT_INTERVAL) * 1000;
        this.initialized = true;
      } else {

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Related Classes of com.continuuity.tephra.persist.HDFSTransactionStateStorage

com.continuuity.tephra.coprocessor.TransactionStateCache

com.continuuity.tephra.snapshot.SnapshotCodecProvider

org.apache.hadoop.conf.Configuration

org.apache.hadoop.fs.FSDataInputStream

org.apache.hadoop.fs.FSDataOutputStream

org.apache.hadoop.fs.Path

java.io.InputStream

java.util.Date

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