Examples of org.apache.hadoop.hbase.DoNotRetryIOException

org.apache.hadoop.hbase.DoNotRetryIOException
Subclass if exception is not meant to be retried: e.g. {@link UnknownScannerException}

            // when what we need is to open scanner against new location.
            // Attach NSRE to signal client that it needs to re-setup scanner.
            if (this.scanMetrics != null) {
              this.scanMetrics.countOfNSRE.incrementAndGet();
            }
            throw new DoNotRetryIOException("Resetting the scanner -- see exception cause", ioe);
          } else if (ioe instanceof RegionServerStoppedException) {
            // Throw a DNRE so that we break out of cycle of the retries and instead go and
            // open scanner against new location.
            throw new DoNotRetryIOException("Resetting the scanner -- see exception cause", ioe);
          } else {
            // The outer layers will retry
            throw ioe;
          }
        }

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              // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
              // same scanner will result in OutOfOrderScannerNextException
              String msg = "Results sent from server=" + noOfResults + ". But only got " + i
                + " results completely at client. Resetting the scanner to scan again.";
              LOG.error(msg);
              throw new DoNotRetryIOException(msg);
            }
          } catch (IOException ioe) {
            // We are getting IOE while retrieving the cells for Results.
            // We have to scan for the same results again. Throwing DNRIOE as a client retry on the
            // same scanner will result in OutOfOrderScannerNextException
            LOG.error("Exception while reading cells from result."
              + "Resetting the scanner to scan again.", ioe);
            throw new DoNotRetryIOException("Resetting the scanner.", ioe);
          }
          cells.add(cellScanner.current());
        }
        results[i] = Result.create(cells);
      } else {

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      if (mutation instanceof Put) {
        mutateType = MutationType.PUT;
      } else if (mutation instanceof Delete) {
        mutateType = MutationType.DELETE;
      } else {
        throw new DoNotRetryIOException("RowMutations supports only put and delete, not " +
          mutation.getClass().getName());
      }
      MutationProto mp = ProtobufUtil.toMutation(mutateType, mutation);
      builder.addAction(ClientProtos.Action.newBuilder().setMutation(mp).build());
    }

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      if (mutation instanceof Put) {
        type = MutationType.PUT;
      } else if (mutation instanceof Delete) {
        type = MutationType.DELETE;
      } else {
        throw new DoNotRetryIOException("RowMutations supports only put and delete, not " +
          mutation.getClass().getName());
      }
      MutationProto mp = ProtobufUtil.toMutationNoData(type, mutation);
      cells.add(mutation);
      builder.addAction(ClientProtos.Action.newBuilder().setMutation(mp).build());

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        builder.addAction(actionBuilder.
          setMutation(ProtobufUtil.toMutation((Increment)row)));
      } else if (row instanceof RowMutations) {
        throw new UnsupportedOperationException("No RowMutations in multi calls; use mutateRow");
      } else {
        throw new DoNotRetryIOException("Multi doesn't support " + row.getClass().getName());
      }
    }
    return builder;
  }

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        builder.addAction(actionBuilder.
          setMutation(ProtobufUtil.toMutationNoData(MutationType.INCREMENT, i)));
      } else if (row instanceof RowMutations) {
        continue; // ignore RowMutations
      } else {
        throw new DoNotRetryIOException("Multi doesn't support " + row.getClass().getName());
      }
    }
    return builder;
  }

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      abortServer(env, e);
    } else {
      LOG.error("Removing coprocessor '" + env.toString() + "' from " +
          "environment because it threw:  " + e,e);
      coprocessors.remove(env);
      throw new DoNotRetryIOException("Coprocessor: '" + env.toString() +
          "' threw: '" + e + "' and has been removed" + "from the active " +
          "coprocessor set.", e);
    }
  }

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      Boolean existence = null;
      Result r = null;


      if (get.hasClosestRowBefore() && get.getClosestRowBefore()) {
        if (get.getColumnCount() != 1) {
          throw new DoNotRetryIOException(
            "get ClosestRowBefore supports one and only one family now, not "
              + get.getColumnCount() + " families");
        }
        byte[] row = get.getRow().toByteArray();
        byte[] family = get.getColumn(0).getFamily().toByteArray();

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          region.delete(delete);
          processed = Boolean.TRUE;
        }
        break;
        default:
          throw new DoNotRetryIOException(
            "Unsupported mutate type: " + type.name());
      }
      if (processed != null) builder.setProcessed(processed.booleanValue());
      addResult(builder, r, controller);
      return builder.build();

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  throws ServiceException {
    Leases.Lease lease = null;
    String scannerName = null;
    try {
      if (!request.hasScannerId() && !request.hasScan()) {
        throw new DoNotRetryIOException(
          "Missing required input: scannerId or scan");
      }
      long scannerId = -1;
      if (request.hasScannerId()) {
        scannerId = request.getScannerId();

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