package.dist.src.internal.grpc.grpc-channel-options.js Maven / Gradle / Ivy

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"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.grpcChannelOptionsFromGrpcConfig = void 0;
// The default value for max_send_message_length is 4mb.  We need to increase this to 5mb in order to
// support cases where users have requested a limit increase up to our maximum item size of 5mb.
const DEFAULT_MAX_REQUEST_SIZE = 5243000;
function grpcChannelOptionsFromGrpcConfig(grpcConfig) {
    var _a, _b;
    return {
        // default value for max session memory is 10mb.  Under high load, it is easy to exceed this,
        // after which point all requests will fail with a client-side RESOURCE_EXHAUSTED exception.
        'grpc-node.max_session_memory': grpcConfig.getMaxSessionMemoryMb(),
        // This flag controls whether channels use a shared global pool of subchannels, or whether
        // each channel gets its own subchannel pool.  The default value is 0, meaning a single global
        // pool.  Setting it to 1 provides significant performance improvements when we instantiate more
        // than one grpc client.
        'grpc.use_local_subchannel_pool': 1,
        // The default value for max_send_message_length is 4mb.  We need to increase this to 5mb in order to
        // support cases where users have requested a limit increase up to our maximum item size of 5mb.
        'grpc.max_send_message_length': (_a = grpcConfig.getMaxSendMessageLength()) !== null && _a !== void 0 ? _a : DEFAULT_MAX_REQUEST_SIZE,
        'grpc.max_receive_message_length': (_b = grpcConfig.getMaxReceiveMessageLength()) !== null && _b !== void 0 ? _b : DEFAULT_MAX_REQUEST_SIZE,
        // NOTE: keep-alives are very important for long-lived server environments where there may be periods of time
        // when the connection is idle. However, they are very problematic for lambda environments where the lambda
        // runtime is continuously frozen and unfrozen, because the lambda may be frozen before the "ACK" is received
        // from the server. This can cause the keep-alive to timeout even though the connection is completely healthy.
        // Therefore, keep-alives should be disabled in lambda and similar environments.
        'grpc.keepalive_permit_without_calls': grpcConfig.getKeepAlivePermitWithoutCalls(),
        'grpc.keepalive_time_ms': grpcConfig.getKeepAliveTimeMS(),
        'grpc.keepalive_timeout_ms': grpcConfig.getKeepAliveTimeoutMS(),
    };
}
exports.grpcChannelOptionsFromGrpcConfig = grpcChannelOptionsFromGrpcConfig;
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