Caused by: org.elasticsearch.hadoop.EsHadoopIllegalArgumentException: Cannot determine write shards for [CC-2017.01.24/compliance]; likely its format is incorrect (maybe it contains illegal characters?)
at org.elasticsearch.hadoop.util.Assert.isTrue(Assert.java:50)
at org.elasticsearch.hadoop.rest.RestService.initSingleIndex(RestService.java:439)
at org.elasticsearch.hadoop.rest.RestService.createWriter(RestService.java:400)
at org.elasticsearch.spark.rdd.EsRDDWriter.write(EsRDDWriter.scala:40)
at org.elasticsearch.spark.rdd.EsSpark$$anonfun$saveToEs$1.apply(EsSpark.scala:67)
at org.elasticsearch.spark.rdd.EsSpark$$anonfun$saveToEs$1.apply(EsSpark.scala:67)
at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:66)
at org.apache.spark.scheduler.Task.run(Task.scala:89)
at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:213
原因是CC-,需要以小写字母开头。
记录一次代码错误，elastic search的INDEX需要使用小写字母
原文：http://www.cnblogs.com/huaxiaoyao/p/6347733.html