Examples of net.sf.katta.node.IContentServer

net.sf.katta.node.IContentServer
This describes the interaction between the general Node class and a specific Katta server instance it is managing. The Node class talks to Zookeeper, and manages the shards on disk. It tells the server when to start and stop using the shards, and when to shut down. The RPC calls from the client will not go through the Node. The Hadoop RPC.Server uses a separate interface for those calls. Implementations need to have a default constructor.

  }


  @Override
  protected void execute(NodeContext context, String shardName, DeployResult deployResult) throws Exception {
    File localShardFolder = context.getShardManager().getShardFolder(shardName);
    IContentServer contentServer = context.getContentServer();
    if (!contentServer.getShards().contains(shardName)) {
      contentServer.addShard(shardName, localShardFolder);
    }
    publishShard(shardName, context);
  }

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          _nodeSelectionPolicy);


  @Test
  public void testProxyFailure() throws Exception {
    NodeProxyManager proxyManagerSpy = spy(_proxyManager);
    IContentServer contentServer = mock(IContentServer.class);
    doReturn(contentServer).when(proxyManagerSpy).createNodeProxy(anyString());


    assertThat(proxyManagerSpy.getProxy("node1", true)).isNotNull();
    assertThat(proxyManagerSpy.getProxy("node2", true)).isNotNull();
    proxyManagerSpy.setSuccessiveProxyFailuresBeforeReestablishing(2);

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  }


  @Test
  public void testProxyFailure_ConnectionFailure() throws Exception {
    NodeProxyManager proxyManagerSpy = spy(_proxyManager);
    IContentServer contentServer = mock(IContentServer.class);
    doReturn(contentServer).when(proxyManagerSpy).createNodeProxy(anyString());


    assertThat(proxyManagerSpy.getProxy("node1", true)).isNotNull();
    assertThat(proxyManagerSpy.getProxy("node2", true)).isNotNull();
    proxyManagerSpy.setSuccessiveProxyFailuresBeforeReestablishing(2);

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  @Override
  protected void execute(NodeContext context, String shardName, DeployResult deployResult) throws Exception {
    String shardPath = getShardPath(shardName);
    File localShardFolder = context.getShardManager().installShard(shardName, shardPath);
    IContentServer contentServer = context.getContentServer();
    if (!contentServer.getShards().contains(shardName)) {
      contentServer.addShard(shardName, localShardFolder);
      Map<String, String> shardMetaData = context.getContentServer().getShardMetaData(shardName);
      if (shardMetaData == null) {
        throw new IllegalStateException("node managed '" + context.getContentServer()
                + "' does return NULL as shard metadata");
      }

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Related Classes of net.sf.katta.node.IContentServer

net.sf.katta.client.NodeProxyManagerTest

net.sf.katta.operation.node.ShardDeployOperation

net.sf.katta.operation.node.ShardRedeployOperation

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