【Canal】ERROR column size is not match for table:db_test.test,22 vs 21 解决

背景：

canal 版本 1.1.4

错误提示：

ERROR com.alibaba.otter.canal.common.utils.NamedThreadFactory - from MultiStageCoprocessor-Parser-example-3
com.alibaba.otter.canal.parse.exception.CanalParseException: com.alibaba.otter.canal.parse.exception.CanalParseException: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed.
Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed.
Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: parse row data failed.
Caused by: com.alibaba.otter.canal.parse.exception.CanalParseException: column size is not match for table:db_test.test,22 vs 21

原因：

数据表的表结构发生了变化引起的，导致不在读取binlog日志

解决：

配置使用tsdb

0、在数据库中新建  数据库 canal_tsdb

mysql>create database canal_tsdb;

1、打开/canal/conf/canal.properties

vim /canal/conf/canal.properties

2、原始配置

# table meta tsdb info
canal.instance.tsdb.enable = true
canal.instance.tsdb.dir = ${canal.file.data.dir:../conf}/${canal.instance.destination:}
canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;
canal.instance.tsdb.dbUsername = canal
canal.instance.tsdb.dbPassword = canal
# dump snapshot interval, default 24 hour
canal.instance.tsdb.snapshot.interval = 24
# purge snapshot expire , default 360 hour(15 days)
canal.instance.tsdb.snapshot.expire = 360

#################################################
#########               destinations            #############
#################################################
canal.destinations = example
# conf root dir
canal.conf.dir = ../conf
# auto scan instance dir add/remove and start/stop instance
canal.auto.scan = true
canal.auto.scan.interval = 5

canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml
#canal.instance.tsdb.spring.xml = classpath:spring/tsdb/mysql-tsdb.xml

3、修改内容红色部分

# table meta tsdb info
canal.instance.tsdb.enable = true
canal.instance.tsdb.dir = ${canal.file.data.dir:../conf}/${canal.instance.destination:}
#canal.instance.tsdb.url = jdbc:h2:${canal.instance.tsdb.dir}/h2;CACHE_SIZE=1000;MODE=MYSQL;
canal.instance.tsdb.url = jdbc:mysql://127.0.0.1:3306/canal_tsdb
canal.instance.tsdb.dbUsername = test
canal.instance.tsdb.dbPassword = test
# dump snapshot interval, default 24 hour
canal.instance.tsdb.snapshot.interval = 24
# purge snapshot expire , default 360 hour(15 days)
canal.instance.tsdb.snapshot.expire = 360

#################################################
#########               destinations            #############
#################################################
canal.destinations = example
# conf root dir
canal.conf.dir = ../conf
# auto scan instance dir add/remove and start/stop instance
canal.auto.scan = true
canal.auto.scan.interval = 5

#canal.instance.tsdb.spring.xml = classpath:spring/tsdb/h2-tsdb.xml
canal.instance.tsdb.spring.xml = classpath:spring/tsdb/mysql-tsdb.xml

注意：此处用的是mysql不是h2