用datax同步数据到doris，报下面错误：

java.lang.RuntimeException: Writing records to Doris failed.
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.close(DorisWriterManager.java:113)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriter$Task.post(DorisWriter.java:150)
 at com.alibaba.datax.core.taskgroup.runner.WriterRunner.run(WriterRunner.java:65)
 at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.RuntimeException: Writing records to Doris failed.
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.checkFlushException(DorisWriterManager.java:189)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.waitAsyncFlushingDone(DorisWriterManager.java:150)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.flush(DorisWriterManager.java:98)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.close(DorisWriterManager.java:111)
 ... 3 more
Caused by: java.io.IOException: java.io.IOException: Failed to flush data to Doris.
{"TxnId":-1,"Label":"datax_doris_writer_fed9613c-8d95-4284-a9a2-949985cf3f8d","TwoPhaseCommit":"false","Status":"Fail","Message":"errCode = 7, detailMessage = unknown table, tableName=mediation","NumberTotalRows":0,"NumberLoadedRows":0,"NumberFilteredRows":0,"NumberUnselectedRows":0,"LoadBytes":0,"LoadTimeMs":0,"BeginTxnTimeMs":0,"StreamLoadPutTimeMs":0,"ReadDataTimeMs":0,"WriteDataTimeMs":0,"CommitAndPublishTimeMs":0}
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.asyncFlush(DorisWriterManager.java:170)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager.access$000(DorisWriterManager.java:19)
 at com.alibaba.datax.plugin.writer.doriswriter.DorisWriterManager$1.run(DorisWriterManager.java:134)
 ... 1 more
Caused by: java.io.IOException: Failed to flush data to Doris.

在这种情况下，错误是由于未知表引起的。这可能是由许多因素引起的，例如：

表不存在。
表不可访问。
表配置不正确。
要修复错误，您需要确定错误的原因并采取措施进行纠正。如果表不存在，则需要创建表。如果无法访问表，则需要授予用户对表的写入权限。如果表配置不正确，则需要正确配置它。

一旦您纠正了错误的原因，就应该能够无问题地将数据写入Doris中。

以下是一些解决此错误的附加提示：

检查Doris日志以获取更多有关错误的信息。
尝试使用其他工具（例如Doris CLI或Doris API）将数据写入Doris。
如果仍然遇到问题，您可以联系Doris支持团队寻求帮助。

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