CanalParseException: fetch failed by table meta:`數據庫`.`表`

原文：https://github.com/alibaba/canal/issues/3250

Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: fetch failed by table meta:`prod_db`.`prod_table`
Caused by: java.io.IOException: ErrorPacket [errorNumber=1142, fieldCount=-1, message=SHOW command denied to user 'canal'@'xx.xx.xx.xxx' for table 'prod_table', sqlState=42000, sqlStateMarker=#]
 with command: show create table `prod_db`.`prod_table`
        at com.alibaba.otter.canal.parse.driver.mysql.MysqlQueryExecutor.query(MysqlQueryExecutor.java:61) ~[canal.parse.driver-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.MysqlConnection.query(MysqlConnection.java:106) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.TableMetaCache.getTableMeta(TableMetaCache.java:177) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.getTableMeta(LogEventConvert.java:950) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.dbsync.LogEventConvert.parseRowsEventForTableMeta(LogEventConvert.java:479) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.MysqlMultiStageCoprocessor$SimpleParserStage.onEvent(MysqlMultiStageCoprocessor.java:274) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.alibaba.otter.canal.parse.inbound.mysql.MysqlMultiStageCoprocessor$SimpleParserStage.onEvent(MysqlMultiStageCoprocessor.java:246) ~[canal.parse-1.1.5-SNAPSHOT.jar:na]
        at com.lmax.disruptor.BatchEventProcessor.processEvents(BatchEventProcessor.java:168) ~[disruptor-3.4.2.jar:na]
        at com.lmax.disruptor.BatchEventProcessor.run(BatchEventProcessor.java:125) ~[disruptor-3.4.2.jar:na]
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) ~[na:1.8.0_212

 解決方案：

生產環境的master_info_repository=TABLE，因此在消費binlog記錄時需要查詢表來獲取master狀態。

需要賦予賬號select 權限