A：故障;node未找到.
原因：node机器添加完成后，跳转到机器列表页面，获取对应的机器序号nid,node节点对应的唯一标示
B:故障：Unsupported BinlogFormat MIXED
show variables like '%log%';后binlog_format值仍为MIXED
原因;my.cnf下有多余binlog_format赋值MIXED
C:
故障：channel挂起，从库未同步主库表数据。
(解决方案同DDL语句不能执行故障Exception: no support ddl for）
解决方案;在otter的管理界面，点击同步管理，停用Channel,点击进入Pipeline==>管理＝>最下面高级＝>跳过ddl异常。重启就OK了
挂起时的报错信息：
pid:9 nid:4 exception:setl:com.alibaba.otter.node.etl.load.exception.LoadException: java.util.concurrent.ExecutionException: com.alibaba.otter.node.etl.load.exception.LoadException: com.alibaba.otter.node.etl.load.exception.LoadException: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
Caused by: java.util.concurrent.ExecutionException: com.alibaba.otter.node.etl.load.exception.LoadException: com.alibaba.otter.node.etl.load.exception.LoadException: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
at java.util.concurrent.FutureTask.report(FutureTask.java:122)
at java.util.concurrent.FutureTask.get(FutureTask.java:192)
at com.alibaba.otter.node.etl.load.loader.db.DataBatchLoader.load(DataBatchLoader.java:107)
at com.alibaba.otter.node.etl.load.loader.OtterLoaderFactory.load(OtterLoaderFactory.java:50)
at com.alibaba.otter.node.etl.load.LoadTask$1.run(LoadTask.java:85)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.alibaba.otter.node.etl.load.exception.LoadException: com.alibaba.otter.node.etl.load.exception.LoadException: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
Caused by: com.alibaba.otter.node.etl.load.exception.LoadException: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
Caused by: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQL grammar []; nested exception is com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
at org.springframework.jdbc.support.SQLStateSQLExceptionTranslator.doTranslate(SQLStateSQLExceptionTranslator.java:98)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:72)
at org.springframework.jdbc.support.AbstractFallbackSQLExceptionTranslator.translate(AbstractFallbackSQLExceptionTranslator.java:80)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:407)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction.doDdl(DbLoadAction.java:357)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction.load(DbLoadAction.java:135)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction$$FastClassByCGLIB$$d932a4cb.invoke()
at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:618)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction$$EnhancerByCGLIB$$80fd23c2.load()
at com.alibaba.otter.node.etl.load.loader.db.DataBatchLoader$2.call(DataBatchLoader.java:198)
at com.alibaba.otter.node.etl.load.loader.db.DataBatchLoader$2.call(DataBatchLoader.java:189)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Key column 'CompanyName' doesn't exist in table
at sun.reflect.GeneratedConstructorAccessor91.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.mysql.jdbc.Util.handleNewInstance(Util.java:425)
at com.mysql.jdbc.Util.getInstance(Util.java:408)
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:943)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3970)
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3906)
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2524)
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2677)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2545)
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2503)
at com.mysql.jdbc.StatementImpl.executeInternal(StatementImpl.java:839)
at com.mysql.jdbc.StatementImpl.execute(StatementImpl.java:739)
at org.apache.commons.dbcp.DelegatingStatement.execute(DelegatingStatement.java:264)
at org.apache.commons.dbcp.DelegatingStatement.execute(DelegatingStatement.java:264)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction$1.doInStatement(DbLoadAction.java:369)
at com.alibaba.otter.node.etl.load.loader.db.DbLoadAction$1.doInStatement(DbLoadAction.java:357)
at org.springframework.jdbc.core.JdbcTemplate.execute(JdbcTemplate.java:396)
... 14 more
https://blog.csdn.net/weixin_36567485/java/article/details/78021636