Package org.apache.hadoop.ha

Examples of org.apache.hadoop.ha.ServiceFailedException

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  synchronized HAServiceStatus getServiceStatus()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    if (state == null) {
      return new HAServiceStatus(HAServiceState.INITIALIZING);
    }
    HAServiceState retState = state.getServiceState();
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  synchronized void transitionToActive()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    state.setState(haContext, ACTIVE_STATE);
  }
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  synchronized void transitionToStandby()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    state.setState(haContext, STANDBY_STATE);
  }
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  synchronized HAServiceStatus getServiceStatus()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    if (state == null) {
      return new HAServiceStatus(HAServiceState.INITIALIZING);
    }
    HAServiceState retState = state.getServiceState();
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      // TODO(HA): there is a really narrow race here if we are just
      // about to start a checkpoint - this won't cancel it!
      namesystem.getFSImage().cancelSaveNamespace(
          "About to exit standby state");
    } catch (InterruptedException e) {
      throw new ServiceFailedException(
          "Interrupted while trying to cancel checkpoint");
    }
  }
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  synchronized void transitionToActive()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    state.setState(haContext, ACTIVE_STATE);
  }
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  synchronized void transitionToStandby()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    state.setState(haContext, STANDBY_STATE);
  }
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  synchronized HAServiceStatus getServiceStatus()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    if (state == null) {
      return new HAServiceStatus(HAServiceState.INITIALIZING);
    }
    HAServiceState retState = state.getServiceState();
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    } catch (Throwable ignored) {
      // This is unlikely to happen, but there's nothing we can do if it does.
    }
    runtime.exit(1);
    // This code is only reached during testing, when runtime is stubbed out.
    throw new ServiceFailedException(message, t);
  }
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  synchronized void transitionToActive()
      throws ServiceFailedException, AccessControlException {
    namesystem.checkSuperuserPrivilege();
    if (!haEnabled) {
      throw new ServiceFailedException("HA for namenode is not enabled");
    }
    state.setState(haContext, ACTIVE_STATE);
  }
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Related Classes of org.apache.hadoop.ha.ServiceFailedException

  • org.apache.hadoop.hdfs.server.namenode.BackupState
  • org.apache.hadoop.hdfs.server.namenode.ha.ActiveState
  • org.apache.hadoop.hdfs.server.namenode.ha.HAState
  • org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer
  • org.apache.hadoop.hdfs.server.namenode.ha.StandbyState
  • org.apache.hadoop.hdfs.server.namenode.NameNode
  • org.apache.hadoop.yarn.server.resourcemanager.AdminService
  • org.apache.hadoop.yarn.server.resourcemanager.EmbeddedElectorService
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