Examples of org.apache.hadoop.hbase.master.TableLockManager.writeLock()

Class org.apache.hadoop.hbase.master.TableLockManager

Examples of org.apache.hadoop.hbase.master.TableLockManager.writeLock()

org.apache.hadoop.hbase.master.TableLockManager.writeLock()
Returns a TableLock for locking the table for exclusive access @param tableName Table to lock @param purpose Human readable reason for locking the table @return A new TableLock object for acquiring a write lock


    ServerName mockName = ServerName.valueOf("localhost", 60000, 1);


    // obtain one lock
    final TableLockManager tableLockManager = TableLockManager.createTableLockManager(conf, TEST_UTIL.getZooKeeperWatcher(), mockName);
    TableLock writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "testCheckTableLocks");
    writeLock.acquire();
    hbck = doFsck(conf, false);
    assertNoErrors(hbck); // should not have expired, no problems

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    final CountDownLatch latch = new CountDownLatch(1);
    new Thread() {
      @Override
      public void run() {
        TableLock readLock = tableLockManager.writeLock(TableName.valueOf("foo"),
            "testCheckTableLocks");
        try {
          latch.countDown();
          readLock.acquire();
        } catch (IOException ex) {

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    hbck = doFsck(conf, false);
    assertNoErrors(hbck);


    // ensure that locks are deleted
    writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "should acquire without blocking");
    writeLock.acquire(); // this should not block.
    writeLock.release(); // release for clean state
  }

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    ServerName mockName = new ServerName("localhost", 60000, 1);


    // obtain one lock
    final TableLockManager tableLockManager = TableLockManager.createTableLockManager(conf, TEST_UTIL.getZooKeeperWatcher(), mockName);
    TableLock writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "testCheckTableLocks");
    writeLock.acquire();
    hbck = doFsck(conf, false);
    assertNoErrors(hbck); // should not have expired, no problems

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    final CountDownLatch latch = new CountDownLatch(1);
    new Thread() {
      @Override
      public void run() {
        TableLock readLock = tableLockManager.writeLock(TableName.valueOf("foo"),
            "testCheckTableLocks");
        try {
          latch.countDown();
          readLock.acquire();
        } catch (IOException ex) {

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    hbck = doFsck(conf, false);
    assertNoErrors(hbck);


    // ensure that locks are deleted
    writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "should acquire without blocking");
    writeLock.acquire(); // this should not block.
    writeLock.release(); // release for clean state
  }

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    ServerName mockName = ServerName.valueOf("localhost", 60000, 1);


    // obtain one lock
    final TableLockManager tableLockManager = TableLockManager.createTableLockManager(conf, TEST_UTIL.getZooKeeperWatcher(), mockName);
    TableLock writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "testCheckTableLocks");
    writeLock.acquire();
    hbck = doFsck(conf, false);
    assertNoErrors(hbck); // should not have expired, no problems

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    final CountDownLatch latch = new CountDownLatch(1);
    new Thread() {
      @Override
      public void run() {
        TableLock readLock = tableLockManager.writeLock(TableName.valueOf("foo"),
            "testCheckTableLocks");
        try {
          latch.countDown();
          readLock.acquire();
        } catch (IOException ex) {

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    hbck = doFsck(conf, false);
    assertNoErrors(hbck);


    // ensure that locks are deleted
    writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "should acquire without blocking");
    writeLock.acquire(); // this should not block.
    writeLock.release(); // release for clean state
  }

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    ServerName mockName = ServerName.valueOf("localhost", 60000, 1);


    // obtain one lock
    final TableLockManager tableLockManager = TableLockManager.createTableLockManager(conf, TEST_UTIL.getZooKeeperWatcher(), mockName);
    TableLock writeLock = tableLockManager.writeLock(TableName.valueOf("foo"),
        "testCheckTableLocks");
    writeLock.acquire();
    hbck = doFsck(conf, false);
    assertNoErrors(hbck); // should not have expired, no problems

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