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java.util.concurrent.CancellationException: Task was cancelled. at com.google.common.util.concurrent.AbstractFuture.cancellationExceptionWithCause(AbstractFuture.java:399) at com.google.common.util.concurrent.AbstractFuture$Sync.getValue(AbstractFuture.java:313) at com.google.common.util.concurrent.AbstractFuture$Sync.get(AbstractFuture.java:293) at com.google.common.util.concurrent.AbstractFuture.get(AbstractFuture.java:116) at com.google.common.util.concurrent.Uninterruptibles.getUninterruptibly(Uninterruptibles.java:135) at com.google.common.util.concurrent.Futures$4.run(Futures.java:1138) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293) at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:150) at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:135) at com.google.common.util.concurrent.AbstractFuture.cancel(AbstractFuture.java:134) at com.google.common.util.concurrent.Futures$CombinedFuture.setOneValue(Futures.java:1545) at com.google.common.util.concurrent.Futures$CombinedFuture.access$400(Futures.java:1441) at com.google.common.util.concurrent.Futures$CombinedFuture$2.run(Futures.java:1514) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:293) at com.google.common.util.concurrent.ExecutionList$RunnableExecutorPair.execute(ExecutionList.java:150) at com.google.common.util.concurrent.ExecutionList.execute(ExecutionList.java:135) at com.google.common.util.concurrent.ListenableFutureTask.done(ListenableFutureTask.java:91) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:380) at java.util.concurrent.FutureTask.cancel(FutureTask.java:177) at com.datastax.driver.core.Cluster$Manager.shutdownNow(Cluster.java:1341) at com.datastax.driver.core.Cluster$Manager.close(Cluster.java:1308) at com.datastax.driver.core.Cluster$Manager.access$200(Cluster.java:1104) at com.datastax.driver.core.Cluster.closeAsync(Cluster.java:449) at com.datastax.driver.core.Cluster.close(Cluster.java:460) at com.datastax.loader.CqlDelimLoad.cleanup(CqlDelimLoad.java:236) at com.datastax.loader.CqlDelimLoad.run(CqlDelimLoad.java:316) at com.datastax.loader.CqlDelimLoad.main(CqlDelimLoad.java:323)