小编Far*_*rah的帖子

我有一个像这样在时间戳中进行时间访问的数据库

ID, time
1, 1493596800
1, 1493596900
1, 1493432800
2, 1493596800
2, 1493596850
2, 1493432800

我使用 spark SQL，我需要为每个 ID 设置最长的连续日期序列，例如

ID, longest_seq (days)
1, 2
2, 5
3, 1

我试图根据 我的情况调整这个答案使用 SQL 检测连续日期范围，但我没有达到我的期望。

 SELECT ID, MIN (d), MAX(d)
    FROM (
      SELECT ID, cast(from_utc_timestamp(cast(time as timestamp), 'CEST') as date) AS d, 
                ROW_NUMBER() OVER(
         PARTITION BY ID ORDER BY cast(from_utc_timestamp(cast(time as timestamp), 'CEST') 
                                                           as date)) rn
      FROM purchase
      where ID is not null
      GROUP BY ID, cast(from_utc_timestamp(cast(time as timestamp), 'CEST') …

我正在尝试将模型学习从我的 Spark 独立集群保存到 S3。但我有这个错误：

java.util.ServiceConfigurationError: org.apache.hadoop.fs.FileSystem: Provider org.apache.hadoop.fs.s3a.S3AFileSystem could not be instantiated
at java.util.ServiceLoader.fail(ServiceLoader.java:232)
at java.util.ServiceLoader.access$100(ServiceLoader.java:185)
at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:384)
at java.util.ServiceLoader$LazyIterator.next(ServiceLoader.java:404)
at java.util.ServiceLoader$1.next(ServiceLoader.java:480)
at org.apache.hadoop.fs.FileSystem.loadFileSystems(FileSystem.java:2631)
at org.apache.hadoop.fs.FileSystem.getFileSystemClass(FileSystem.java:2650)
at org.apache.hadoop.fs.FileSystem.createFileSystem(FileSystem.java:2667)
at org.apache.hadoop.fs.FileSystem.access$200(FileSystem.java:94)
at org.apache.hadoop.fs.FileSystem$Cache.getInternal(FileSystem.java:2703)
at org.apache.hadoop.fs.FileSystem$Cache.get(FileSystem.java:2685)
at org.apache.hadoop.fs.FileSystem.get(FileSystem.java:373)
at org.apache.spark.util.Utils$.getHadoopFileSystem(Utils.scala:1853)
at org.apache.spark.scheduler.EventLoggingListener.<init>(EventLoggingListener.scala:68)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:529)
at ALS$.main(ALS.scala:32)
at ALS.main(ALS.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:775)
at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:180)
at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:205)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:119)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.NoClassDefFoundError: com/amazonaws/event/ProgressListener
    at java.lang.Class.getDeclaredConstructors0(Native Method)
    at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671)
    at java.lang.Class.getConstructor0(Class.java:3075)
    at java.lang.Class.newInstance(Class.java:412)
    at java.util.ServiceLoader$LazyIterator.nextService(ServiceLoader.java:380) …