Package org.apache.hadoop.io.retry

Examples of org.apache.hadoop.io.retry.RetryPolicy

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      InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
      boolean withRetries) throws IOException {
    NamenodeProtocolPB proxy = (NamenodeProtocolPB) createNameNodeProxy(
        address, conf, ugi, NamenodeProtocolPB.class);
    if (withRetries) { // create the proxy with retries
      RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(5, 200,
          TimeUnit.MILLISECONDS);
      Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap
                     = new HashMap<Class<? extends Exception>, RetryPolicy>();
      RetryPolicy methodPolicy = RetryPolicies.retryByException(timeoutPolicy,
          exceptionToPolicyMap);
      Map<String, RetryPolicy> methodNameToPolicyMap
                     = new HashMap<String, RetryPolicy>();
      methodNameToPolicyMap.put("getBlocks", methodPolicy);
      methodNameToPolicyMap.put("getAccessKeys", methodPolicy);
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      InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
      boolean withRetries) throws IOException {
    ClientNamenodeProtocolPB proxy = (ClientNamenodeProtocolPB) NameNodeProxies
        .createNameNodeProxy(address, conf, ugi, ClientNamenodeProtocolPB.class);
    if (withRetries) { // create the proxy with retries
      RetryPolicy createPolicy = RetryPolicies
          .retryUpToMaximumCountWithFixedSleep(5,
              HdfsConstants.LEASE_SOFTLIMIT_PERIOD, TimeUnit.MILLISECONDS);
   
      Map<Class<? extends Exception>, RetryPolicy> remoteExceptionToPolicyMap
                 = new HashMap<Class<? extends Exception>, RetryPolicy>();
      remoteExceptionToPolicyMap.put(AlreadyBeingCreatedException.class,
          createPolicy);
   
      Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap
                 = new HashMap<Class<? extends Exception>, RetryPolicy>();
      exceptionToPolicyMap.put(RemoteException.class, RetryPolicies
          .retryByRemoteException(RetryPolicies.TRY_ONCE_THEN_FAIL,
              remoteExceptionToPolicyMap));
      RetryPolicy methodPolicy = RetryPolicies.retryByException(
          RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
      Map<String, RetryPolicy> methodNameToPolicyMap
                 = new HashMap<String, RetryPolicy>();
   
      methodNameToPolicyMap.put("create", methodPolicy);
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  }

  /** Create a {@link NameNode} proxy */
  static DatanodeProtocolPB createNamenodeWithRetry(
      DatanodeProtocolPB rpcNamenode) {
    RetryPolicy createPolicy = RetryPolicies
        .retryUpToMaximumCountWithFixedSleep(5,
            HdfsConstants.LEASE_SOFTLIMIT_PERIOD, TimeUnit.MILLISECONDS);

    Map<Class<? extends Exception>, RetryPolicy> remoteExceptionToPolicyMap =
        new HashMap<Class<? extends Exception>, RetryPolicy>();
    remoteExceptionToPolicyMap.put(AlreadyBeingCreatedException.class,
        createPolicy);

    Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
        new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(RemoteException.class, RetryPolicies
        .retryByRemoteException(RetryPolicies.TRY_ONCE_THEN_FAIL,
            remoteExceptionToPolicyMap));
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String, RetryPolicy> methodNameToPolicyMap = new HashMap<String, RetryPolicy>();

    methodNameToPolicyMap.put("create", methodPolicy);

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  } 

  private static FileSystemStore createDefaultStore(Configuration conf) {
    FileSystemStore store = new Jets3tFileSystemStore();
   
    RetryPolicy basePolicy = RetryPolicies.retryUpToMaximumCountWithFixedSleep(
                                                                               conf.getInt("fs.s3.maxRetries", 4),
                                                                               conf.getLong("fs.s3.sleepTimeSeconds", 10), TimeUnit.SECONDS);
    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(IOException.class, basePolicy);
    exceptionToPolicyMap.put(S3Exception.class, basePolicy);
   
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
                                                              RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap = new HashMap<String,RetryPolicy>();
    methodNameToPolicyMap.put("storeBlock", methodPolicy);
    methodNameToPolicyMap.put("retrieveBlock", methodPolicy);
   
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    }

  private static ClientProtocol createNamenode(ClientProtocol rpcNamenode,
      Configuration conf) throws IOException {
    //default policy
    @SuppressWarnings("unchecked")
    final RetryPolicy defaultPolicy =
        RetryUtils.getDefaultRetryPolicy(
            conf,
            DFSConfigKeys.DFS_CLIENT_RETRY_POLICY_ENABLED_KEY,
            DFSConfigKeys.DFS_CLIENT_RETRY_POLICY_ENABLED_DEFAULT,
            DFSConfigKeys.DFS_CLIENT_RETRY_POLICY_SPEC_KEY,
            DFSConfigKeys.DFS_CLIENT_RETRY_POLICY_SPEC_DEFAULT,
            SafeModeException.class
            );
   
    //create policy
    RetryPolicy createPolicy = RetryPolicies.retryUpToMaximumCountWithFixedSleep(
        5, LEASE_SOFTLIMIT_PERIOD, TimeUnit.MILLISECONDS);
   
    Map<Class<? extends Exception>,RetryPolicy> remoteExceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    remoteExceptionToPolicyMap.put(AlreadyBeingCreatedException.class, createPolicy);

    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(RemoteException.class,
        RetryPolicies.retryByRemoteException(
            defaultPolicy, remoteExceptionToPolicyMap));
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        defaultPolicy, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap = new HashMap<String,RetryPolicy>();
   
    methodNameToPolicyMap.put("create", methodPolicy);
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  /* Build a NamenodeProtocol connection to the namenode and
   * set up the retry policy */
  private static NamenodeProtocol createNamenode(Configuration conf)
    throws IOException {
    InetSocketAddress nameNodeAddr = NameNode.getServiceAddress(conf, true);
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(
        5, 200, TimeUnit.MILLISECONDS);
    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        timeoutPolicy, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap =
        new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", methodPolicy);
    methodNameToPolicyMap.put("getAccessKeys", methodPolicy);
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        NetUtils.getSocketFactory(conf, ClientProtocol.class));
  }

  private static ClientProtocol createNamenode(ClientProtocol rpcNamenode)
    throws IOException {
    RetryPolicy createPolicy = RetryPolicies.retryUpToMaximumCountWithFixedSleep(
        5, LEASE_SOFTLIMIT_PERIOD, TimeUnit.MILLISECONDS);
   
    Map<Class<? extends Exception>,RetryPolicy> remoteExceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    remoteExceptionToPolicyMap.put(AlreadyBeingCreatedException.class, createPolicy);

    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(RemoteException.class,
        RetryPolicies.retryByRemoteException(
            RetryPolicies.TRY_ONCE_THEN_FAIL, remoteExceptionToPolicyMap));
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap = new HashMap<String,RetryPolicy>();
   
    methodNameToPolicyMap.put("create", methodPolicy);
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        NetUtils.getSocketFactory(conf, RaidProtocol.class));
  }

  private static RaidProtocol createRaidnode(RaidProtocol rpcRaidnode)
    throws IOException {
    RetryPolicy createPolicy = RetryPolicies.retryUpToMaximumCountWithFixedSleep(
        5, 5000, TimeUnit.MILLISECONDS);

    Map<Class<? extends Exception>,RetryPolicy> remoteExceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();

    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(RemoteException.class,
        RetryPolicies.retryByRemoteException(
            RetryPolicies.TRY_ONCE_THEN_FAIL, remoteExceptionToPolicyMap));
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap = new HashMap<String,RetryPolicy>();

    methodNameToPolicyMap.put("create", methodPolicy);
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  /* Build a NamenodeProtocol connection to the namenode and
   * set up the retry policy */
  private static NamenodeProtocol createNamenode(Configuration conf)
    throws IOException {
    InetSocketAddress nameNodeAddr = NameNode.getAddress(conf);
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(
        5, 200, TimeUnit.MILLISECONDS);
    Map<Class<? extends Exception>,RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        timeoutPolicy, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap =
        new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("getBlocks", methodPolicy);
    methodNameToPolicyMap.put("getAccessKeys", methodPolicy);
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  }
 
  private static NativeFileSystemStore createDefaultStore(Configuration conf) {
    NativeFileSystemStore store = new Jets3tNativeFileSystemStore();
   
    RetryPolicy basePolicy = RetryPolicies.retryUpToMaximumCountWithFixedSleep(
        conf.getInt("fs.s3.maxRetries", 4),
        conf.getLong("fs.s3.sleepTimeSeconds", 10), TimeUnit.SECONDS);
    Map<Class<? extends Exception>, RetryPolicy> exceptionToPolicyMap =
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    exceptionToPolicyMap.put(IOException.class, basePolicy);
    exceptionToPolicyMap.put(S3Exception.class, basePolicy);
   
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String, RetryPolicy> methodNameToPolicyMap =
      new HashMap<String, RetryPolicy>();
    methodNameToPolicyMap.put("storeFile", methodPolicy);
    methodNameToPolicyMap.put("rename", methodPolicy);
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