Examples with HttpLoadBalancer com.facebook.buck.slb.HttpLoadBalancer used on opensource projects

Example 1 with HttpLoadBalancer

use of com.facebook.buck.slb.HttpLoadBalancer in project buck by facebook.

the class ArtifactCaches method createHttpArtifactCache.

private static ArtifactCache createHttpArtifactCache(HttpCacheEntry cacheDescription, final String hostToReportToRemote, final BuckEventBus buckEventBus, ProjectFilesystem projectFilesystem, ListeningExecutorService httpWriteExecutorService, ArtifactCacheBuckConfig config, NetworkCacheFactory factory, boolean distributedBuildModeEnabled) {
    // Setup the default client to use.
    OkHttpClient.Builder storeClientBuilder = new OkHttpClient.Builder();
    storeClientBuilder.networkInterceptors().add(chain -> chain.proceed(chain.request().newBuilder().addHeader("X-BuckCache-User", stripNonAscii(System.getProperty("user.name", "<unknown>"))).addHeader("X-BuckCache-Host", stripNonAscii(hostToReportToRemote)).build()));
    int timeoutSeconds = cacheDescription.getTimeoutSeconds();
    setTimeouts(storeClientBuilder, timeoutSeconds);
    storeClientBuilder.connectionPool(new ConnectionPool(/* maxIdleConnections */
    (int) config.getThreadPoolSize(), /* keepAliveDurationMs */
    config.getThreadPoolKeepAliveDurationMillis(), TimeUnit.MILLISECONDS));
    // The artifact cache effectively only connects to a single host at a time. We should allow as
    // many concurrent connections to that host as we allow threads.
    Dispatcher dispatcher = new Dispatcher();
    dispatcher.setMaxRequestsPerHost((int) config.getThreadPoolSize());
    storeClientBuilder.dispatcher(dispatcher);
    final ImmutableMap<String, String> readHeaders = cacheDescription.getReadHeaders();
    final ImmutableMap<String, String> writeHeaders = cacheDescription.getWriteHeaders();
    // If write headers are specified, add them to every default client request.
    if (!writeHeaders.isEmpty()) {
        storeClientBuilder.networkInterceptors().add(chain -> chain.proceed(addHeadersToBuilder(chain.request().newBuilder(), writeHeaders).build()));
    }
    OkHttpClient storeClient = storeClientBuilder.build();
    // For fetches, use a client with a read timeout.
    OkHttpClient.Builder fetchClientBuilder = storeClient.newBuilder();
    setTimeouts(fetchClientBuilder, timeoutSeconds);
    // If read headers are specified, add them to every read client request.
    if (!readHeaders.isEmpty()) {
        fetchClientBuilder.networkInterceptors().add(chain -> chain.proceed(addHeadersToBuilder(chain.request().newBuilder(), readHeaders).build()));
    }
    fetchClientBuilder.networkInterceptors().add((chain -> {
        Response originalResponse = chain.proceed(chain.request());
        return originalResponse.newBuilder().body(new ProgressResponseBody(originalResponse.body(), buckEventBus)).build();
    }));
    OkHttpClient fetchClient = fetchClientBuilder.build();
    HttpService fetchService;
    HttpService storeService;
    switch(config.getLoadBalancingType()) {
        case CLIENT_SLB:
            HttpLoadBalancer clientSideSlb = config.getSlbConfig().createClientSideSlb(new DefaultClock(), buckEventBus, new CommandThreadFactory("ArtifactCaches.HttpLoadBalancer", SLB_THREAD_PRIORITY));
            fetchService = new RetryingHttpService(buckEventBus, new LoadBalancedService(clientSideSlb, fetchClient, buckEventBus), config.getMaxFetchRetries());
            storeService = new LoadBalancedService(clientSideSlb, storeClient, buckEventBus);
            break;
        case SINGLE_SERVER:
            URI url = cacheDescription.getUrl();
            fetchService = new SingleUriService(url, fetchClient);
            storeService = new SingleUriService(url, storeClient);
            break;
        default:
            throw new IllegalArgumentException("Unknown HttpLoadBalancer type: " + config.getLoadBalancingType());
    }
    String cacheName = cacheDescription.getName().map(input -> "http-" + input).orElse("http");
    boolean doStore = cacheDescription.getCacheReadMode().isDoStore();
    return factory.newInstance(NetworkCacheArgs.builder().setThriftEndpointPath(config.getHybridThriftEndpoint()).setCacheName(cacheName).setRepository(config.getRepository()).setScheduleType(config.getScheduleType()).setFetchClient(fetchService).setStoreClient(storeService).setDoStore(doStore).setProjectFilesystem(projectFilesystem).setBuckEventBus(buckEventBus).setHttpWriteExecutorService(httpWriteExecutorService).setErrorTextTemplate(cacheDescription.getErrorMessageFormat()).setDistributedBuildModeEnabled(distributedBuildModeEnabled).build());
}