Examples of org.apache.hadoop.ipc.RetriableException

org.apache.hadoop.ipc.RetriableException
Exception thrown by a server typically to indicate that server is in a state where request cannot be processed temporarily (such as still starting up). Client may retry the request. If the service is up, the server may be able to process a retried request.

    if (isInSafeMode()) {
      SafeModeException se = new SafeModeException(errorMsg, safeMode);
      if (haEnabled && haContext != null
          && haContext.getState().getServiceState() == HAServiceState.ACTIVE
          && shouldRetrySafeMode(this.safeMode)) {
        throw new RetriableException(se);
      } else {
        throw se;
      }
    }
  }

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        if ((b.getLocations() == null) || (b.getLocations().length == 0)) {
          SafeModeException se = new SafeModeException(
              "Zero blocklocations for " + src, safeMode);
          if (haEnabled && haContext != null && 
              haContext.getState().getServiceState() == HAServiceState.ACTIVE) {
            throw new RetriableException(se);
          } else {
            throw se;
          }
        }
      }

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      byte[] password) throws InvalidToken, RetriableException {
    try {
      getDelegationTokenSecretManager().verifyToken(identifier, password);
    } catch (InvalidToken it) {
      if (inTransitionToActive()) {
        throw new RetriableException(it);
      }
      throw it;
    }
  }

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    } catch (InvalidToken it) {
      if (namesystem.inTransitionToActive()) {
        // if the namesystem is currently in the middle of transition to 
        // active state, let client retry since the corresponding editlog may 
        // have not been applied yet
        throw new RetriableException(it);
      } else {
        throw it;
      }
    }
  }

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      }
      info = waitable.await();
    } catch (InterruptedException e) {
      LOG.info(this + ": interrupted while waiting for " + key);
      Thread.currentThread().interrupt();
      throw new RetriableException("interrupted");
    }
    if (info.getInvalidTokenException() != null) {
      LOG.warn(this + ": could not get " + key + " due to InvalidToken " +
            "exception.", info.getInvalidTokenException());
      return info;
    }
    ShortCircuitReplica replica = info.getReplica();
    if (replica == null) {
      LOG.warn(this + ": failed to get " + key);
      return info;
    }
    if (replica.purged) {
      // Ignore replicas that have already been purged from the cache.
      throw new RetriableException("Ignoring purged replica " +
          replica + ".  Retrying.");
    }
    // Check if the replica is stale before using it.
    // If it is, purge it and retry.
    if (replica.isStale()) {
      LOG.info(this + ": got stale replica " + replica + ".  Removing " +
          "this replica from the replicaInfoMap and retrying.");
      // Remove the cache's reference to the replica.  This may or may not
      // trigger a close.
      purge(replica);
      throw new RetriableException("ignoring stale replica " + replica);
    }
    ref(replica);
    return info;
  }

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    if (isInSafeMode()) {
      SafeModeException se = new SafeModeException(errorMsg, safeMode);
      if (haEnabled && haContext != null
          && haContext.getState().getServiceState() == HAServiceState.ACTIVE
          && shouldRetrySafeMode(this.safeMode)) {
        throw new RetriableException(se);
      } else {
        throw se;
      }
    }
  }

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        if ((b.getLocations() == null) || (b.getLocations().length == 0)) {
          SafeModeException se = new SafeModeException(
              "Zero blocklocations for " + src, safeMode);
          if (haEnabled && haContext != null && 
              haContext.getState().getServiceState() == HAServiceState.ACTIVE) {
            throw new RetriableException(se);
          } else {
            throw se;
          }
        }
      }

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      byte[] password) throws InvalidToken, RetriableException {
    try {
      getDelegationTokenSecretManager().verifyToken(identifier, password);
    } catch (InvalidToken it) {
      if (inTransitionToActive()) {
        throw new RetriableException(it);
      }
      throw it;
    }
  }

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    Object result = super.invokeMethod(method, args);
    int retryCount = RetryCount.get();
    if (retryCount < this.numToDrop) {
      RetryCount.set(++retryCount);
      LOG.info("Drop the response. Current retryCount == " + retryCount);
      throw new RetriableException("Fake Exception");
    } else {
      LOG.info("retryCount == " + retryCount
          + ". It's time to normally process the response");
      return result;
    }

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    } catch (InvalidToken it) {
      if (namesystem.inTransitionToActive()) {
        // if the namesystem is currently in the middle of transition to 
        // active state, let client retry since the corresponding editlog may 
        // have not been applied yet
        throw new RetriableException(it);
      } else {
        throw it;
      }
    }
  }

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Related Classes of org.apache.hadoop.ipc.RetriableException

org.apache.hadoop.hdfs.client.ShortCircuitCache

org.apache.hadoop.hdfs.security.token.delegation.DelegationTokenSecretManager

org.apache.hadoop.hdfs.server.namenode.FSNamesystem

org.apache.hadoop.hdfs.shortcircuit.ShortCircuitCache

org.apache.hadoop.io.retry.LossyRetryInvocationHandler

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