mysql2elasticsearch

**java.lang.String cannot be cast to java.util.List**这个是问题出在哪呀？

2021-09-17 12:19:05.192 [job-0] ERROR JobContainer - Exception when job run
java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
at com.alibaba.datax.common.util.Configuration.getList(Configuration.java:426) ~[datax-common-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.plugin.rdbms.reader.util.ReaderSplitUtil.doSplit(ReaderSplitUtil.java:94) ~[plugin-rdbms-util-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.plugin.rdbms.reader.CommonRdbmsReader$Job.split(CommonRdbmsReader.java:103) ~[plugin-rdbms-util-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.plugin.reader.mysqlreader.MysqlReader$Job.split(MysqlReader.java:49) ~[mysqlreader-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.doReaderSplit(JobContainer.java:732) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.split(JobContainer.java:393) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:117) ~[datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.start(Engine.java:92) [datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.entry(Engine.java:171) [datax-core-0.0.1-SNAPSHOT.jar:na]
at com.alibaba.datax.core.Engine.main(Engine.java:204) [datax-core-0.0.1-SNAPSHOT.jar:na]
2021-09-17 12:19:05.196 [job-0] INFO StandAloneJobContainerCommunicator - Total 0 records, 0 bytes | Speed 0B/s, 0 records/s | Error 0 records, 0 bytes | All Task WaitWriterTime 0.000s | All Task WaitReaderTime 0.000s | Percentage 0.00%
2021-09-17 12:19:05.198 [job-0] ERROR Engine -

经DataX智能分析,该任务最可能的错误原因是:
com.alibaba.datax.common.exception.DataXException: Code:[Framework-02], Description:[DataX引擎运行过程出错，具体原因请参看DataX运行结束时的错误诊断信息 .]. - java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
at com.alibaba.datax.common.util.Configuration.getList(Configuration.java:426)
at com.alibaba.datax.plugin.rdbms.reader.util.ReaderSplitUtil.doSplit(ReaderSplitUtil.java:94)
at com.alibaba.datax.plugin.rdbms.reader.CommonRdbmsReader$Job.split(CommonRdbmsReader.java:103)
at com.alibaba.datax.plugin.reader.mysqlreader.MysqlReader$Job.split(MysqlReader.java:49)
at com.alibaba.datax.core.job.JobContainer.doReaderSplit(JobContainer.java:732)
at com.alibaba.datax.core.job.JobContainer.split(JobContainer.java:393)
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:117)
at com.alibaba.datax.core.Engine.start(Engine.java:92)
at com.alibaba.datax.core.Engine.entry(Engine.java:171)
at com.alibaba.datax.core.Engine.main(Engine.java:204)
- java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
at com.alibaba.datax.common.util.Configuration.getList(Configuration.java:426)
at com.alibaba.datax.plugin.rdbms.reader.util.ReaderSplitUtil.doSplit(ReaderSplitUtil.java:94)
at com.alibaba.datax.plugin.rdbms.reader.CommonRdbmsReader$Job.split(CommonRdbmsReader.java:103)
at com.alibaba.datax.plugin.reader.mysqlreader.MysqlReader$Job.split(MysqlReader.java:49)
at com.alibaba.datax.core.job.JobContainer.doReaderSplit(JobContainer.java:732)
at com.alibaba.datax.core.job.JobContainer.split(JobContainer.java:393)
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:117)
at com.alibaba.datax.core.Engine.start(Engine.java:92)
at com.alibaba.datax.core.Engine.entry(Engine.java:171)
at com.alibaba.datax.core.Engine.main(Engine.java:204)

at com.alibaba.datax.common.exception.DataXException.asDataXException(DataXException.java:40)
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:162)
at com.alibaba.datax.core.Engine.start(Engine.java:92)
at com.alibaba.datax.core.Engine.entry(Engine.java:171)
at com.alibaba.datax.core.Engine.main(Engine.java:204)
Caused by: java.lang.ClassCastException: java.lang.String cannot be cast to java.util.List
at com.alibaba.datax.common.util.Configuration.getList(Configuration.java:426)
at com.alibaba.datax.plugin.rdbms.reader.util.ReaderSplitUtil.doSplit(ReaderSplitUtil.java:94)
at com.alibaba.datax.plugin.rdbms.reader.CommonRdbmsReader$Job.split(CommonRdbmsReader.java:103)
at com.alibaba.datax.plugin.reader.mysqlreader.MysqlReader$Job.split(MysqlReader.java:49)
at com.alibaba.datax.core.job.JobContainer.doReaderSplit(JobContainer.java:732)
at com.alibaba.datax.core.job.JobContainer.split(JobContainer.java:393)
at com.alibaba.datax.core.job.JobContainer.start(JobContainer.java:117)
... 3 more

Start with Configuration.getList(Configuration.java:426) and ReaderSplitUtil.doSplit(ReaderSplitUtil.java:94), using the stack trace to locate the value being read during MySQL reader splitting. Inspect the mysql2elasticsearch job configuration for a string where a list is expected; done means the job runs without this ClassCastException.

Written by the indexing model from the issue text.