Sqoop安装好之后运行报错NoClassDefFoundError: org/apache/hadoop/mapreduce/InputFormat如下：21/01/27 08:25:49 INFO orm.CompilationManager: Writing jar file: /tmp/sqoop-root/compile/002e434d1bd3a0780e4d1748ed2511bd/

最近在看ArrayList源码的时候看到了ArrayList的clear方法，源码如下：public void clear() {modCount++;// clear to let GC do its workfor (int i = 0; i < size; i++)elementData[i] = nu...

ES插入date类型数据报错mapping信息如下{"mappings": {"_doc": {"properties": {"id": {"type": "integer"},"case_date": {"type": "date"}}}}}index创建完毕之后插入数据报错，信息如下：{“id”: 20001,“c