bigdata - Yarn 上的 Oracle PGX - Web 服务上的 404

Question

我在 Oracle BDA X7-2 上运行 Yarn，规范:

• Cloudera 企业版 5.14.3
• Java 1.8.0_171
• PGX 2.7.1

我正在尝试按照本手册在 Yarn 上运行 PGX: https://docs.oracle.com/cd/E56133_01/2.5.0/tutorials/yarn.html

设法运行安装脚本，完成其提供的配置文件，内容如下:

{
  "pgx_yarn_jar_hdfs_path": "hdfs:/user/pgx/pgx-yarn-2.7.1.jar",
  "pgx_war_hdfs_path": "hdfs:/user/pgx/pgx-webapp-2.7.1.war",
  "pgx_conf_hdfs_path": "hdfs:/user/pgx/pgx.conf",
  "pgx_log4j_conf_hdfs_path": "hdfs:/user/pgx/log4j2.xml",
  "pgx_dist_log4j_conf_hdfs_path": "hdfs:/user/pgx/dist_log4j.xml",
  "pgx_cluster_host_hdfs_path": "hdfs:/user/pgx/cluster-host.tgz",
  "zookeeper_connect_string": "bda1node05,bda1node06,bda1node07",
  "standard_library_path": "/usr/lib64/gcc/4.8.2",
  "min_heap_size": "512m",
  "max_heap_size": "12g",
  "container_cores": 9,
  "container_memory": 0,
  "container_priority": 0,
  "num_machines": 1
}

Yarn 有一个处于 RUNNING 状态的 pgx-service 应用程序，stderr 中没有错误，日志显示该服务正在以下地址运行:

http://bda1node06:7007

Linux Java 进程正在使用以下命令运行:

/usr/java/default/bin/java -Xms512m -Xmx12g oracle.pgx.yarn.PgxService bda1node06/u11/hadoop/yarn/nm/usercache/root/appcache/application_1539869144089_2070/container_e22_1539869144089_2070_0 1_000002/pgx-服务器.war 7007 bda1node05、bda1node06、bda1node07/pgx-8eef44e2-1657-403a-8193-0102f5266680

执行 PGX 客户端以进行测试后:

$PGX_HOME/bin/pgx --base_url http://bda1node06:7007

我得到:

java.util.concurrent.ExecutionException: java.lang.IllegalStateException: cannot connect to server; requested http://bda1node06:7007/version?extendedInfo=true and expected status 200, got 404 instead; response body = ""
    at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
    at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1895)
    at oracle.pgx.api.PgxFuture.get(PgxFuture.java:99)
    at oracle.pgx.api.ServerInstance.createSession(ServerInstance.java:559)
    at oracle.pgx.shell.Console.initSession(Console.java:280)
    at oracle.pgx.shell.Console.(Console.java:153)
    at oracle.pgx.shell.Console.main(Console.java:296)
Caused by: java.lang.IllegalStateException: cannot connect to server; requested http://bda1node06:7007/version?extendedInfo=true and expected status 200, got 404 instead; response body = ""
    at oracle.pgx.api.ClientApiProvider.lambda$versionCheck$2(ClientApiProvider.java:189)
    at oracle.pgx.client.RemoteUtils.lambda$asyncRequest$5(RemoteUtils.java:278)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

我不知道如何调试和检查连接 URL 中是否需要任何额外路径。

我如何进行调试？

提前致谢!

Answer 1

默认情况下，PGX 的基本路径为 /pgx，这意味着您应该按如下方式连接:

$PGX_HOME/bin/pgx --base_url http://bda1node06:7007/pgx