如何配置Tensorflow服务以服务HDFS中的模型？

Question

我正在尝试使用Tensorflow服务项目为HDFS的Tensorflow模型提供服务。

我正在运行tenorflow服务docker容器标签1.10.1https://hub.docker.com/r/tensorflow/serving

我可以看到tensorflow/serving repo在 https://github.com/tensorflow/serving/blob/628702e1de1fa3d679369e9546e7d74fa91154d3/tensorflow_serving/model_servers/BUILD#L341 引用Hadoop

"@org_tensorflow//tensorflow/core/platform/hadoop:hadoop_file_system"

这是对

https://github . com/tensor flow/tensor flow/blob/master/tensor flow/core/platform/Hadoop/Hadoop _ file _ system . cc

我设置了以下环境变量：

• HADOOP_HDFS_HOME指向我的HDFS主页（在我的例子中是/etc/HADOOP）
• MODEL_BASE_PATH设置为“hdfs://tensorflow/models“
• MODEL_NAME设置为要加载的模型的名称

我将Hadoop home挂载到docker容器中，并可以使用docker exec验证它。

当我运行docker容器时，我在日志中得到以下内容:

tensorflow_serving/sources/storage_path/file_system_storage_path_source.cc:369] FileSystemStoragePathSource encountered a file-system access error: Could not find base path hdfs://tensorflow/models/my_model for servable my_model

我发现了Tensorflow使用HDFS进行训练的例子，但没有使用Tensorflow服务来自HDFS的模型。

Tensorflow Serving可以为来自HDFS的模型提供服务吗？如果是，您如何做到这一点？

Answer 1

在＜code＞model_serverscc_test@org_tensorflow//tensorflo/core/platform/hadoop:hadoop_file_system，如下所示：

cc_test(
    name = "get_model_status_impl_test",
    size = "medium",
    srcs = ["get_model_status_impl_test.cc"],
    data = [
        "//tensorflow_serving/servables/tensorflow/testdata:saved_model_half_plus_two_2_versions",
    ],
    deps = [
        ":get_model_status_impl",
        ":model_platform_types",
        ":platform_config_util",
        ":server_core",
        "//tensorflow_serving/apis:model_proto",
        "//tensorflow_serving/core:availability_preserving_policy",
        "//tensorflow_serving/core/test_util:test_main",
        "//tensorflow_serving/servables/tensorflow:saved_model_bundle_source_adapter_proto",
        "//tensorflow_serving/servables/tensorflow:session_bundle_config_proto",
        "//tensorflow_serving/servables/tensorflow:session_bundle_source_adapter_proto",
        "//tensorflow_serving/test_util",
        "@org_tensorflow//tensorflow/cc/saved_model:loader",
        "@org_tensorflow//tensorflow/cc/saved_model:signature_constants",
        "@org_tensorflow//tensorflow/contrib/session_bundle",
        "@org_tensorflow//tensorflow/core:test",
        "@org_tensorflow//tensorflow/core/platform/hadoop:hadoop_file_system",
    ],
)

我想这会解决你的问题。

参考：无法从HDFS加载模型