Package org.apache.hcatalog.hbase.snapshot.lock

Examples of org.apache.hcatalog.hbase.snapshot.lock.WriteLock.lock()

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     */
    public long obtainID() throws IOException {
        WriteLock wLock = new WriteLock(zookeeper, zNodeLockBasePath, Ids.OPEN_ACL_UNSAFE);
        wLock.setLockListener(this);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
                //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException("Unable to obtain lock to obtain id.");
            } else {
                id = incrementAndReadCounter();
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        WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
                Ids.OPEN_ACL_UNSAFE);
        RMLockListener myLockListener = new RMLockListener();
        wLock.setLockListener(myLockListener);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
              //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException(
                        "Unable to obtain lock while beginning transaction. "
                                + transaction.toString());
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        WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
                Ids.OPEN_ACL_UNSAFE);
        RMLockListener myLockListener = new RMLockListener();
        wLock.setLockListener(myLockListener);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
              //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException(
                        "Unable to obtain lock while commiting transaction. "
                                + transaction.toString());
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        WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
                Ids.OPEN_ACL_UNSAFE);
        RMLockListener myLockListener = new RMLockListener();
        wLock.setLockListener(myLockListener);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
              //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException(
                        "Unable to obtain lock while aborting transaction. "
                                + transaction.toString());
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         WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
                 Ids.OPEN_ACL_UNSAFE);
         RMLockListener myLockListener = new RMLockListener();
         wLock.setLockListener(myLockListener);
         try {
             boolean lockGrabbed = wLock.lock();
             if (lockGrabbed == false) {
               //TO DO : Let this request queue up and try obtaining lock.
                 throw new IOException(
                         "Unable to obtain lock for keep alive of transaction. "
                                 + transaction.toString());
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        WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
                Ids.OPEN_ACL_UNSAFE);
        RMLockListener myLockListener = new RMLockListener();
        wLock.setLockListener(myLockListener);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
              //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException(
                        "Unable to obtain lock while refreshing transactions of table "
                                + tableName + ".");
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     */
    public long obtainID() throws IOException{
        WriteLock wLock = new WriteLock(zookeeper, zNodeLockBasePath, Ids.OPEN_ACL_UNSAFE);
        wLock.setLockListener(this);
        try {
            boolean lockGrabbed = wLock.lock();
            if (lockGrabbed == false) {
                //TO DO : Let this request queue up and try obtaining lock.
                throw new IOException("Unable to obtain lock to obtain id.");
            } else {
                    id = incrementAndReadCounter();
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    WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
      Ids.OPEN_ACL_UNSAFE);
    RMLockListener myLockListener = new RMLockListener();
    wLock.setLockListener(myLockListener);
    try {
      boolean lockGrabbed = wLock.lock();
      if (lockGrabbed == false) {
        //TO DO : Let this request queue up and try obtaining lock.
        throw new IOException(
          "Unable to obtain lock while beginning transaction. "
            + transaction.toString());
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    WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
      Ids.OPEN_ACL_UNSAFE);
    RMLockListener myLockListener = new RMLockListener();
    wLock.setLockListener(myLockListener);
    try {
      boolean lockGrabbed = wLock.lock();
      if (lockGrabbed == false) {
        //TO DO : Let this request queue up and try obtaining lock.
        throw new IOException(
          "Unable to obtain lock while commiting transaction. "
            + transaction.toString());
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    WriteLock wLock = new WriteLock(zkUtil.getSession(), lockPath,
      Ids.OPEN_ACL_UNSAFE);
    RMLockListener myLockListener = new RMLockListener();
    wLock.setLockListener(myLockListener);
    try {
      boolean lockGrabbed = wLock.lock();
      if (lockGrabbed == false) {
        //TO DO : Let this request queue up and try obtaining lock.
        throw new IOException(
          "Unable to obtain lock while aborting transaction. "
            + transaction.toString());
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