zhangxinjian123 commented on issue #784: Can Hudi delete records? URL: https://github.com/apache/incubator-hudi/issues/784#issuecomment-511724544 Why did I fail to find SparkConf when I executed the DeltaStreamer program? log4j:ERROR Could not instantiate appender named "mail". Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/SparkConf at com.uber.hoodie.utilities.deltastreamer.SchedulerConfGenerator.getSparkSchedulingConfigs(SchedulerConfGenerator.java:97) at com.uber.hoodie.utilities.deltastreamer.HoodieDeltaStreamer.main(HoodieDeltaStreamer.java:289) Caused by: java.lang.ClassNotFoundException: org.apache.spark.SparkConf at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 2 more
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