scala

java.lang.NoClassDefFoundError: org/apache/spark/Logging

由 时间秒杀一切 提交于 2021-01-06 01:59:07
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/Logging at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net

【spark系列7】spark delta写操作ACID事务实现分析

由 只愿长相守 提交于 2021-01-05 16:11:30
背景 本文基于delta 0.7.0 spark 3.0.1 我们之前的 spark delta写操作ACID事务前传--写文件基础类FileFormat/FileCommitProtocol分析 分析了delta写数据的流程，但是还没分析deltalog 写数据的流程，这部分也是实现ACID的核心部分。 ##分析 直接到 WriteIntoDelta.run override def run(sparkSession: SparkSession): Seq[Row] = { deltaLog.withNewTransaction { txn => val actions = write(txn, sparkSession) val operation = DeltaOperations.Write(mode, Option(partitionColumns), options.replaceWhere, options.userMetadata) txn.commit(actions, operation) } Seq.empty } 我们来看一下 deltaLog.withNewTrancation 方法 ： def withNewTransaction[T](thunk: OptimisticTransaction => T): T = { try { update()

change data capture in spark

由 泪湿孤枕 提交于 2021-01-05 11:52:43
问题 I have got a requirement to do , but I am confused how to do it. I have two dataframes. so first time i got the below data file1 file1 prodid, lastupdatedate, indicator 00001,,A 00002,01-25-1981,A 00003,01-26-1982,A 00004,12-20-1985,A the output should be 0001,1900-01-01, 2400-01-01, A 0002,1981-01-25, 2400-01-01, A 0003,1982-01-26, 2400-01-01, A 0004,1985-12-20, 2400-10-01, A Second time i got another one file2 prodid, lastupdatedate, indicator 00002,01-25-2018,U 00004,01-25-2018,U 00006,01

change data capture in spark

由 一笑奈何 提交于 2021-01-05 11:51:55
问题 I have got a requirement to do , but I am confused how to do it. I have two dataframes. so first time i got the below data file1 file1 prodid, lastupdatedate, indicator 00001,,A 00002,01-25-1981,A 00003,01-26-1982,A 00004,12-20-1985,A the output should be 0001,1900-01-01, 2400-01-01, A 0002,1981-01-25, 2400-01-01, A 0003,1982-01-26, 2400-01-01, A 0004,1985-12-20, 2400-10-01, A Second time i got another one file2 prodid, lastupdatedate, indicator 00002,01-25-2018,U 00004,01-25-2018,U 00006,01

Scala/Spark - How to get first elements of all sub-arrays

由 怎甘沉沦 提交于 2021-01-05 09:11:38
问题 I have the following DataFrame in a Spark (I'm using Scala): [[1003014, 0.95266926], [15, 0.9484202], [754, 0.94236785], [1029530, 0.880922], [3066, 0.7085166], [1066440, 0.69400793], [1045811, 0.663178], [1020059, 0.6274495], [1233982, 0.6112905], [1007801, 0.60937023], [1239278, 0.60044676], [1000088, 0.5789191], [1056268, 0.5747936], [1307569, 0.5676605], [10334513, 0.56592846], [930, 0.5446228], [1170206, 0.52525467], [300, 0.52473146], [2105178, 0.4972785], [1088572, 0.4815367]] I want

Scala/Spark - How to get first elements of all sub-arrays

由 旧街凉风 提交于 2021-01-05 09:10:04
问题 I have the following DataFrame in a Spark (I'm using Scala): [[1003014, 0.95266926], [15, 0.9484202], [754, 0.94236785], [1029530, 0.880922], [3066, 0.7085166], [1066440, 0.69400793], [1045811, 0.663178], [1020059, 0.6274495], [1233982, 0.6112905], [1007801, 0.60937023], [1239278, 0.60044676], [1000088, 0.5789191], [1056268, 0.5747936], [1307569, 0.5676605], [10334513, 0.56592846], [930, 0.5446228], [1170206, 0.52525467], [300, 0.52473146], [2105178, 0.4972785], [1088572, 0.4815367]] I want

Scala/Spark - How to get first elements of all sub-arrays

由 一曲冷凌霜 提交于 2021-01-05 09:08:17
问题 I have the following DataFrame in a Spark (I'm using Scala): [[1003014, 0.95266926], [15, 0.9484202], [754, 0.94236785], [1029530, 0.880922], [3066, 0.7085166], [1066440, 0.69400793], [1045811, 0.663178], [1020059, 0.6274495], [1233982, 0.6112905], [1007801, 0.60937023], [1239278, 0.60044676], [1000088, 0.5789191], [1056268, 0.5747936], [1307569, 0.5676605], [10334513, 0.56592846], [930, 0.5446228], [1170206, 0.52525467], [300, 0.52473146], [2105178, 0.4972785], [1088572, 0.4815367]] I want

How do I solve make: None: Command not found issue?

由 走远了吗. 提交于 2021-01-05 08:58:46
问题 I am having trouble understanding this error. make: None: Command not found make: *** [Makefile:3879: api/api_commands.o] Error 127 I have tried looking but I can't find an answer to the specific issue make: None: . The full issue and error message is here for clarification. Help on this would be highly appreciated. Update The make file consists of the following (line 3879 separated from the rest for clarification): ... includes_65 = -I../src/tactic/portfolio -I../src/tactic/smtlogics -I..

How do I solve make: None: Command not found issue?

由 故事扮演 提交于 2021-01-05 08:58:28
问题 I am having trouble understanding this error. make: None: Command not found make: *** [Makefile:3879: api/api_commands.o] Error 127 I have tried looking but I can't find an answer to the specific issue make: None: . The full issue and error message is here for clarification. Help on this would be highly appreciated. Update The make file consists of the following (line 3879 separated from the rest for clarification): ... includes_65 = -I../src/tactic/portfolio -I../src/tactic/smtlogics -I..

“Insecure HTTP request is unsupported” Error in Scala

由 不打扰是莪最后的温柔 提交于 2021-01-05 08:56:55
问题 I am getting the following error when attempting to run sbt run to run my Scala code: insecure HTTP request is unsupported 'http://repo.typesafe.com/typesafe/releases'; switch to HTTPS or opt-in as ("typesafe-releases" at "http://repo.typesafe.com/typesafe/releases").withAllowInsecureProtocol(true), or by using allowInsecureProtocol in repositories file This is strange because it was working perfectly fine last week and I have changed nothing in the code. I have tried adding ("typesafe
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