在 Google Dataflow 中使用 Google Maps Geocode API 时网络无法访问

Question

我在数据流作业中使用谷歌地图地理编码 API ( https://github.com/googlemaps/google-maps-services-java )。 我的 DoFn 在设置时准备 GeoApiContext。 过程元素 function 是这样完成的：

public void processElement(ProcessContext c) {
        String address = c.element().get("Address").toString();
        String id = c.element().get("Id").toString();

        Gson gson = new GsonBuilder().create();

        try {
            GeocodingResult[] results = GeocodingApi.newRequest(this.geocodeContext).address(address).language("pt-BR").components(ComponentFilter.country("BR")).await();
            if(results.length == 0) {
                TableRow outputRow = new TableRow();
                outputRow.set("Id", id);
                c.output(outputRow);
            } else {
                for(GeocodingResult r : results) {
                    TableRow outputRow = convertTableRow(gson.toJson(r).toString());
                    outputRow.set("Id", id);
                    c.output(outputRow);
                }
            }
        } catch(ApiException e) {
            LOGGER.error("ApiException on address: {}", address, e);
        } catch(InterruptedException e) {
            LOGGER.error("InterruptedException on address: {}", address, e);
        } catch(IOException e) {
            LOGGER.error("IOException on address: {}", address, e);
        }
    }

此代码在本地运行良好，但在部署到数据流时会引发网络错误：

exception: "java.net.ConnectException: Failed to connect to maps.googleapis.com/2607:f8b0:4001:c05:0:0:0:5f:443
    at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:265)
    at okhttp3.internal.connection.RealConnection.connect(RealConnection.java:183)
    at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.java:224)
    at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.java:108)
    at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.java:88)
    at okhttp3.internal.connection.Transmitter.newExchange(Transmitter.java:169)
    at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.java:41)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
    at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.java:94)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
    at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.java:93)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
    at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.java:88)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:142)
    at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.java:117)
    at okhttp3.RealCall.getResponseWithInterceptorChain(RealCall.java:229)
    at okhttp3.RealCall$AsyncCall.execute(RealCall.java:172)
    at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32)
    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
    at java.base/java.lang.Thread.run(Thread.java:834)
Caused by: java.net.ConnectException: Network is unreachable (connect failed)
    at java.base/java.net.PlainSocketImpl.socketConnect(Native Method)
    at java.base/java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:399)
    at java.base/java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:242)
    at java.base/java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:224)
    at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:403)
    at java.base/java.net.Socket.connect(Socket.java:591)
    at okhttp3.internal.platform.Platform.connectSocket(Platform.java:130)
    at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.java:263)
    ... 22 more

我确保生成的虚拟机可以访问互联网，我什至可以从容器内部 ping maps.googleapis.com 端点：

USER@test-geocode-07020834-qmrj-harness-3k2l ~ $ docker container ls
CONTAINER ID        IMAGE                                             COMMAND                  CREATED             STATUS              PORTS               NAMES
b2fd123138aa        3a1cb7aedd54                                      "/opt/google/dataflo…"   6 minutes ago       Up 5 minutes                            k8s_healthchecker_dataflow-test-geocode-07020834-qmrj-harness-3k2l_default_5648e9815f2ca5beea8b0eb945e12d1f_0
086e36c3dd23        4127911f4769                                      "/opt/google/dataflo…"   6 minutes ago       Up 5 minutes                            k8s_vmmonitor_dataflow-test-geocode-07020834-qmrj-harness-3k2l_default_5648e9815f2ca5beea8b0eb945e12d1f_0
2890fa415af5        664bd8972b23                                      "/opt/google/dataflo…"   6 minutes ago       Up 6 minutes                            k8s_shuffle_dataflow-test-geocode-07020834-qmrj-harness-3k2l_default_5648e9815f2ca5beea8b0eb945e12d1f_0
eea757bf6be7        gcr.io/cloud-dataflow/v1beta3/beam-java11-batch   "/opt/google/dataflo…"   6 minutes ago       Up 6 minutes                            k8s_java-batch_dataflow-test-geocode-07020834-qmrj-harness-3k2l_default_5648e9815f2ca5beea8b0eb945e12d1f_0
b636784118f5        k8s.gcr.io/pause:3.1                              "/pause"                 6 minutes ago       Up 6 minutes                            k8s_POD_dataflow-test-geocode-07020834-qmrj-harness-3k2l_default_5648e9815f2ca5beea8b0eb945e12d1f_0
lucas@test-geocode-07020834-qmrj-harness-3k2l ~ $ docker exec -it eea /bin/sh
# ping maps.googleapis.com                                               
PING maps.googleapis.com (172.217.214.95) 56(84) bytes of data.
64 bytes from 172.217.214.95: icmp_seq=1 ttl=115 time=1.08 ms
64 bytes from 172.217.214.95: icmp_seq=2 ttl=115 time=1.28 ms
64 bytes from 172.217.214.95: icmp_seq=3 ttl=115 time=1.15 ms
64 bytes from 172.217.214.95: icmp_seq=4 ttl=115 time=1.41 ms
^C
--- maps.googleapis.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 1.089/1.235/1.414/0.131 ms
# 

关于版本，我使用的是最新的梁版本（2.22.0）和最新的谷歌地图版本（0.14.0）。

不知道还有什么可以看的，任何帮助表示赞赏。

更新

问题似乎是请求是使用 ipv6 地址完成的。 但是，GCE 机器似乎不支持 ipv6，并且调用只是失败而没有退回到 ipv4。

考虑到这一点，似乎没有任何办法解决这个问题：

• 无法使用 Dataflow 将 JVM 配置为首选 ipv4 地址（JVM 标志被忽略）
• 也无法自定义 GCE 机器（因为使用了基本 Dataflow 映像）
• 该库似乎没有打开任何配置 ipv4 或 ipv6 的选项

谢谢

Answer 1

I had this exact same issue come up after upgrading from 2.17 to 2.24 and changing from Java 8 to Java 11. After trying to fix this on 2.24 and Java 11 I gave up and went back to 8 and it's working now.

我在任何地方都找不到它的文档，但看起来使用的 userAgent 是基于此 -

当我使用 Java 8 构建自我可执行文件时，Dataflow 将 userAgent 显示为 Apache_Beam_SDK_for_Java/2.24.0(JRE_8_environment)

并使用 Java 11 显示 Apache_Beam_SDK_for_Java/2.24.0(JDK_11_environment)