Examples of com.cloudera.util.RetryHarness

com.cloudera.util.RetryHarness
Wraps the retry logic associated with a BackoffPolicy to save having to write driver code.


  class ZKRetryHarness {
    final protected RetryHarness harness;


    public ZKRetryHarness(Retryable retry, BackoffPolicy policy) {
      harness = new RetryHarness(retry, policy, true);
    }

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          initCallback.success(ZKClient.this);
        }
        return true;
      };
    };
    RetryHarness harness = new RetryHarness(retry, new FixedRetryPolicy(3),
        true);


    try {
      return harness.attempt();
    } catch (IOException i) {
      throw i;
    } catch (Exception e) {
      throw new IOException("Unexpected exception connecting to ZK", e);
    }

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      public FlumeConfigData doRPC() throws IOException {
        return masterRPC.getConfig(n);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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      public Boolean doRPC() throws IOException {
        return masterRPC.checkAck(ackid);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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            "No active master RPC connection");
        return masterRPC.getLogicalNodes(physicalNode);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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      public Map<String, Integer> doRPC() throws IOException {
        return masterRPC.getChokeMap(physicalNode);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }

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      public Boolean doRPC() throws IOException {
        return masterRPC.heartbeat(n);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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        return result; // Have to return something, but no-one will ever check
        // it
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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        masterRPC.putReports(reports);
        return result;
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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      public FlumeConfigData doRPC() throws IOException {
        return masterRPC.getConfig(n);
      }
    };


    RetryHarness harness = new RetryHarness(retry, new FixedPeriodBackoff(
        RETRY_PAUSE_MS, MAX_RETRIES), true);
    try {
      harness.attempt();
      return retry.getResult();
    } catch (Exception e) {
      throw new IOException(e);
    }
  }

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Related Classes of com.cloudera.util.RetryHarness

com.cloudera.flume.agent.MultiMasterRPC

com.cloudera.flume.master.ZKClient

com.cloudera.flume.master.ZKClient$ZKRetryHarness

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