Examples of org.apache.flume.Transaction.rollback()

org.apache.flume.Transaction.rollback()
Indicates that the transaction can must be aborted. It is required that a transaction be in progress when this method is invoked.

      for (Event record : records) {
        in.put(record);
      }
      t.commit();
    } catch (Throwable th) {
      t.rollback();
      Throwables.propagateIfInstanceOf(th, Error.class);
      Throwables.propagateIfInstanceOf(th, EventDeliveryException.class);
      throw new EventDeliveryException(th);
    } finally {
      t.close();

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    }


    try {
      txn.commit();
    } catch (Throwable t) {
      txn.rollback();
    } finally {
      txn.close();
    }


    source.stop();

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      txn.commit();
      sinkCounter.addToEventDrainSuccessCount(count);
      counterGroup.incrementAndGet("transaction.success");
    } catch (Throwable ex) {
      try {
        txn.rollback();
        counterGroup.incrementAndGet("transaction.rollback");
      } catch (Exception ex2) {
        logger.error(
            "Exception in rollback. Rollback might not have been successful.",
            ex2);

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      transaction.commit();
      sinkCounter.addToEventDrainSuccessCount(size);


    } catch (Throwable t) {
      transaction.rollback();
      if (t instanceof Error) {
        throw (Error) t;
      } else if (t instanceof ChannelException) {
        logger.error("Rpc Sink " + getName() + ": Unable to get event from" +
            " channel " + channel.getName() + ". Exception follows.", t);

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      } catch (Throwable t2) {
        LOGGER.error("Morphline Sink " + getName() + ": Unable to rollback morphline transaction. " +
            "Exception follows.", t2);
      } finally {
        try {
          txn.rollback();
        } catch (Throwable t4) {
          LOGGER.error("Morphline Sink " + getName() + ": Unable to rollback Flume transaction. " +
              "Exception follows.", t4);
        }
      }

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                input.addAll(putWithoutCommit(channel, tx, "failAfterPut", 3));
                try {
                  latch.await();
                  tx.commit();
                } catch (InterruptedException e) {
                  tx.rollback();
                  Throwables.propagate(e);
                } finally {
                  tx.close();
                }
              }

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    Transaction transaction;
    transaction = channel.getTransaction();
    transaction.begin();
    Event event = channel.take();
    Assert.assertNotNull(event);
    transaction.rollback();
    transaction.close();
    // ensure the take the didn't change the state of the capacity
    Assert.assertEquals(0, fillChannel(channel, "capacity").size());
    // ensure we the events back
    Assert.assertEquals(5, takeEvents(channel, 1, 5).size());

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    channel.start();
    putEvents(channel, "testing-reference-counting", 1, 15);
    Transaction tx = channel.getTransaction();
    takeWithoutCommit(channel, tx, 10);
    forceCheckpoint(channel);
    tx.rollback();
    //Since we did not commit the original transaction. now we should get 15
    //events back.
    final Set<String> takenEvents = Sets.newHashSet();
    Executors.newSingleThreadExecutor().submit(new Runnable() {
      @Override

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          }
          result.add(new String(event.getBody(), Charsets.UTF_8));
        }
        transaction.commit();
      } catch (Throwable ex) {
        transaction.rollback();
        throw new RuntimeException(ex);
      } finally {
        transaction.close();
      }

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          batch.add(s);
        }
        transaction.commit();
        result.addAll(batch);
      } catch (Exception ex) {
        transaction.rollback();
        if(untilCapacityIsReached && ex instanceof ChannelException &&
            ("The channel has reached it's capacity. "
                + "This might be the result of a sink on the channel having too "
                + "low of batch size, a downstream system running slower than "
                + "normal, or that the channel capacity is just too low. "

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