Jireh程序猿的那些事

最一台数据同步的linux一直硬盘空间爆满，发现datax-admin的日志文件非常大，清理后过了一两天再次服务器空间爆满

最好将日志文件下载过来，排查一下

发现日志当中都是一直重复报json解析时候的一个错误

2023-07-06 00:00:25,120 ERROR [http-nio-9527-exec-21] c.w.d.admin.core.util.JacksonUtil [JacksonUtil.java : 86] Illegal unquoted character ((CTRL-CHAR, code 26)): has to be escaped using backslash to be included in string value
 at [Source: (String)"[{"logId":13241,"logDateTim":1685950677000,"executeResult":{"code":500,"msg":"block strategy effectCover Early [job running, killed]","content":null}}]"; line: 1, column: 78] (through reference chain: java.util.ArrayList[0]->com.wugui.datatx.core.biz.model.HandleCallbackParam["executeResult"]->com.wugui.datatx.core.biz.model.ReturnT["msg"])
com.fasterxml.jackson.databind.JsonMappingException: Illegal unquoted character ((CTRL-CHAR, code 26)): has to be escaped using backslash to be included in string value

估计是Datax数据同步任务执行中，执行结果中包含部分特殊ASCII码，使用JacksonUtil解析时就会报这个错误

解决方法

在 datax-admin/src/main/java/com/wugui/datax/admin/core/util/JacksonUtil.java中添加一行

objectMapper.configure(JsonParser.Feature.ALLOW_UNQUOTED_CONTROL_CHARS,true);