Examples of com.continuuity.tephra.distributed.ThriftClientProvider

com.continuuity.tephra.distributed.ThriftClientProvider

This interface is used to provide thrift tx service clients: there is only one (singleton) tx service per JVM, but many threads may use it concurrently. However, being a thrift client, it is not thread-safe. In order to avoid serializing all tx calls by synchronizing on the tx service client, we employ a pool of clients. But in different scenarios there are different strategies for pooling: If there are many short-lived threads, it is wise to have a shared pool between all threads. But if there are few long-lived threads, it may be better to have thread-local client for each thread. This interface provides an abstraction of the pooling strategy.

    @Override
    public ThriftClientProvider get() {
      // configure the client provider
      String provider = cConf.get(TxConstants.Service.CFG_DATA_TX_CLIENT_PROVIDER,
                                  TxConstants.Service.DEFAULT_DATA_TX_CLIENT_PROVIDER);
      ThriftClientProvider clientProvider;
      if ("pool".equals(provider)) {
        clientProvider = new PooledClientProvider(cConf, discoveryServiceClient);
      } else if ("thread-local".equals(provider)) {
        clientProvider = new ThreadLocalClientProvider(cConf, discoveryServiceClient);
      } else {

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Examples of com.continuuity.tephra.distributed.ThriftClientProvider

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