Examples of RetryPolicy

com.datastax.driver.core.policies.RetryPolicy
A policy that defines a default behavior to adopt when a request returns a TimeoutException or an UnavailableException. Such policy allows to centralize the handling of query retries, allowing to minimize the need for exception catching/handling in business code.
com.microsoft.windowsazure.scheduler.models.RetryPolicy
Retry Policy for the job action.
com.netflix.astyanax.retry.RetryPolicy
Interface for any retry logic @author elandau
com.netflix.curator.RetryPolicy
io.druid.indexing.common.RetryPolicy
net.jodah.lyra.config.RetryPolicy
Policy that defines how retries should be performed. @author Jonathan Halterman
net.jodah.lyra.retry.RetryPolicy
org.apache.curator.RetryPolicy
Abstracts the policy to use when retrying connections
org.apache.hadoop.io.retry.RetryPolicy

Specifies a policy for retrying method failures. Implementations of this interface should be immutable.
@author Tom White
org.apache.yoko.orb.OB.RetryPolicy
The retry policy. This policy is used to specify retry behavior after communication failures (i.e., CORBA::TRANSIENT and CORBA::COMM_FAILURE exceptions).
org.mule.api.retry.RetryPolicy
A RetryPolicy takes some action each time an exception occurs and returns a {@link PolicyStatus}which indicates whether the policy is exhausted or should continue to retry.
org.springframework.retry.RetryPolicy
A {@link RetryPolicy} is responsible for allocating and managing resourcesneeded by {@link RetryOperations}. The {@link RetryPolicy} allows retryoperations to be aware of their context. Context can be internal to the retry framework, e.g. to support nested retries. Context can also be external, and the {@link RetryPolicy} provides a uniform API for a range of differentplatforms for the external context. @author Dave Syer
tachyon.retry.RetryPolicy
Attempts to retry code from a do/while loop. The way that this interface works is that the logic for delayed retries (retries that sleep) can delay the caller of {@link #attemptRetry()}. Because of this, its best to put retries in do/while loops to avoid the first wait.
This interface is not thread safe and as such should only ever be used from one thread.

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

  }


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

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

  private static ClientProtocol createNNProxyWithClientProtocol(
      InetSocketAddress address, Configuration conf, UserGroupInformation ugi,
      boolean withRetries) throws IOException {
    RPC.setProtocolEngine(conf, ClientNamenodeProtocolPB.class, ProtobufRpcEngine.class);


    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);
    
    final long version = RPC.getProtocolVersion(ClientNamenodeProtocolPB.class);
    ClientNamenodeProtocolPB proxy = RPC.getProtocolProxy(
        ClientNamenodeProtocolPB.class, version, address, ugi, conf,
        NetUtils.getDefaultSocketFactory(conf), 0, defaultPolicy).getProxy();


    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(defaultPolicy,
              remoteExceptionToPolicyMap));
      RetryPolicy methodPolicy = RetryPolicies.retryByException(
          defaultPolicy, exceptionToPolicyMap);
      Map<String, RetryPolicy> methodNameToPolicyMap 
                 = new HashMap<String, RetryPolicy>();
    
      methodNameToPolicyMap.put("create", methodPolicy);

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

                                            ) throws IOException {
    JobSubmissionProtocol raw =
        (JobSubmissionProtocol) RPC.getProxy(JobSubmissionProtocol.class,
            JobSubmissionProtocol.versionID, addr, conf, NetUtils
                .getSocketFactory(conf, JobSubmissionProtocol.class));
    RetryPolicy backoffPolicy =
      RetryPolicies.retryUpToMaximumCountWithProportionalSleep
      (5, 10, java.util.concurrent.TimeUnit.SECONDS);
    Map<Class<? extends Exception>, RetryPolicy> handlers = 
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    handlers.put(SocketTimeoutException.class, backoffPolicy);
    RetryPolicy backoffTimeOuts = 
      RetryPolicies.retryByException(RetryPolicies.TRY_ONCE_THEN_FAIL,handlers);
    return (JobSubmissionProtocol)
      RetryProxy.create(JobSubmissionProtocol.class, raw, backoffTimeOuts);
  }

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

  }


  private static ClientProtocol createNamenode(
      InetSocketAddress nameNodeAddr, Configuration conf)
    throws IOException {
    RetryPolicy timeoutPolicy = RetryPolicies.exponentialBackoffRetry(
        5, 200, TimeUnit.MILLISECONDS);
    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));
    exceptionToPolicyMap.put(SocketTimeoutException.class, timeoutPolicy);
    RetryPolicy methodPolicy = RetryPolicies.retryByException(
        RetryPolicies.TRY_ONCE_THEN_FAIL, exceptionToPolicyMap);
    Map<String,RetryPolicy> methodNameToPolicyMap = new HashMap<String,RetryPolicy>();
    
    methodNameToPolicyMap.put("open", methodPolicy);
    methodNameToPolicyMap.put("setReplication", methodPolicy);

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

  }  


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

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

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

  }  


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

                                            ) throws IOException {
    JobSubmissionProtocol raw =
        (JobSubmissionProtocol) RPC.getProxy(JobSubmissionProtocol.class,
            JobSubmissionProtocol.versionID, addr, conf, NetUtils
                .getSocketFactory(conf, JobSubmissionProtocol.class));
    RetryPolicy backoffPolicy =
      RetryPolicies.retryUpToMaximumCountWithProportionalSleep
      (5, 10, java.util.concurrent.TimeUnit.SECONDS);
    Map<Class<? extends Exception>, RetryPolicy> handlers = 
      new HashMap<Class<? extends Exception>, RetryPolicy>();
    handlers.put(SocketTimeoutException.class, backoffPolicy);
    RetryPolicy backoffTimeOuts = 
      RetryPolicies.retryByException(RetryPolicies.TRY_ONCE_THEN_FAIL,handlers);
    return (JobSubmissionProtocol)
      RetryProxy.create(JobSubmissionProtocol.class, raw, backoffTimeOuts);
  }

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