Could not retrieve transaction read-only status from server问题排查
今天发现save task的时候经常后台会报这个错,而且有的时候还会卡住等20几分钟才执行完。
2019-11-12 15:08:29.410 http-nio-9080-exec-6 ERROR org.apache.juli.logging.DirectJDKLog.log(DirectJDKLog.java:182) - Servlet.service() for servlet [dispatcherServlet] in context with path [] threw exception [Request processing failed; nested exception is org.springframework.dao.TransientDataAccessResourceException:
### Error updating database. Cause: java.sql.SQLException: Could not retrieve transaction read-only status from server
### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: delete from t_taskcomment where task_code = ?
### Cause: java.sql.SQLException: Could not retrieve transaction read-only status from server
; SQL []; Could not retrieve transaction read-only status from server; nested exception is java.sql.SQLException: Could not retrieve transaction read-only status from server] with root cause java.sql.SQLException: ResultSet is from UPDATE. No Data.
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:965) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:898) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:887) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:861) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.ResultSetImpl.next(ResultSetImpl.java:6302) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3551) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.ConnectionImpl.isReadOnly(ConnectionImpl.java:3524) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.checkReadOnlySafeStatement(PreparedStatement.java:1158) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.mysql.jdbc.PreparedStatement.execute(PreparedStatement.java:1178) ~[mysql-connector-java-5.1.47.jar!/:5.1.47]
at com.alibaba.druid.pool.DruidPooledPreparedStatement.execute(DruidPooledPreparedStatement.java:493) ~[druid-1.1.0.jar!/:1.1.0]
at sun.reflect.GeneratedMethodAccessor249.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
at org.apache.ibatis.logging.jdbc.PreparedStatementLogger.invoke(PreparedStatementLogger.java:59) ~[mybatis-3.4.6.jar!/:3.4.6]
at com.sun.proxy.$Proxy210.execute(Unknown Source) ~[?:?]
at org.apache.ibatis.executor.statement.PreparedStatementHandler.update(PreparedStatementHandler.java:46) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.executor.statement.RoutingStatementHandler.update(RoutingStatementHandler.java:74) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.executor.SimpleExecutor.doUpdate(SimpleExecutor.java:50) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.executor.BaseExecutor.update(BaseExecutor.java:117) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.executor.CachingExecutor.update(CachingExecutor.java:76) ~[mybatis-3.4.6.jar!/:3.4.6]
at sun.reflect.GeneratedMethodAccessor293.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
at org.apache.ibatis.plugin.Plugin.invoke(Plugin.java:63) ~[mybatis-3.4.6.jar!/:3.4.6]
at com.sun.proxy.$Proxy208.update(Unknown Source) ~[?:?]
at org.apache.ibatis.session.defaults.DefaultSqlSession.update(DefaultSqlSession.java:198) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.session.defaults.DefaultSqlSession.delete(DefaultSqlSession.java:213) ~[mybatis-3.4.6.jar!/:3.4.6]
at sun.reflect.GeneratedMethodAccessor481.invoke(Unknown Source) ~[?:?]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_191]
at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_191]
at org.mybatis.spring.SqlSessionTemplate$SqlSessionInterceptor.invoke(SqlSessionTemplate.java:433) ~[mybatis-spring-1.3.2.jar!/:1.3.2]
at com.sun.proxy.$Proxy112.delete(Unknown Source) ~[?:?]
at org.mybatis.spring.SqlSessionTemplate.delete(SqlSessionTemplate.java:310) ~[mybatis-spring-1.3.2.jar!/:1.3.2]
at org.apache.ibatis.binding.MapperMethod.execute(MapperMethod.java:68) ~[mybatis-3.4.6.jar!/:3.4.6]
at org.apache.ibatis.binding.MapperProxy.invoke(MapperProxy.java:59) ~[mybatis-3.4.6.jar!/:3.4.6]
at com.sun.proxy.$Proxy159.deleteBytaskcode(Unknown Source) ~[?:?]
at com.hp.nova.service.impl.instance.InstanceServiceImpl.AddInstance(InstanceServiceImpl.java:373) ~[classes!/:0.0.1-SNAPSHOT]
后来网上查了很多解决方法,进行了如下配置:
mysql进行如下配置重启
[mysql]
default-character-set=utf8
[mysqld]
skip-name-resolve
interactive_timeout = 120
wait_timeout = 3600
max_allowed_packet = 64M
log-bin=mysql-bin
server-id=153
character-set-server=utf8
innodb_buffer_pool_size = 1024M
innodb_lock_wait_timeout = 500
transaction_isolation = READ-COMMITTED
log-slave-updates
auto-increment-increment = 2
auto-increment-offset = 2
default-time_zone = '+8:00'
mycat添加如下配置重启
<system>
<property name="sqlExecuteTimeout">3000</property>
task和plan的微服务的yml添加如下配置重启:
ribbon:
ReadTimeout: 1200000
ConnectTimeout: 1200000
进行了上述操作还是问题没有解决,后来有的网上又说mysql的驱动包有问题,我把task微服务的mysql驱动从5.1.47分别换成了mysql 5.1.27 和 mysql 8.0.18 还是没有用
最后发现是task save的时候可能事务有问题,有可能是mycat问题也有可能是mysql的问题,反正我都改成了如下配置,然后重启后台就好了,暂时没有发现read-only错误了,后续继续观察。
@Transactional(propagation=Propagation.NOT_SUPPORTED)
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