我正在使用MySQL集群NDB进行批处理操作:在单个事务中插入10000或5,000行和删除行。插入工作正常,但删除失败,并出现异常:
java.sql.SQLException: Got temporary error 221 'Too many concurrently fired triggers (increase MaxNoOfFiredTriggers)' from NDBCLUSTER
at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1086) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4237) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:4169) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2617) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2778) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2828) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mysql.jdbc.ConnectionImpl.commit(ConnectionImpl.java:1748) ~[mysql-connector-java-5.1.29-bin.jar:na]
at com.mchange.v2.c3p0.impl.NewProxyConnection.commit(NewProxyConnection.java:981) ~[c3p0-0.9.5.1.jar:0.9.5.1]
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doCommit(JdbcTransaction.java:112) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:178) [hibernate-core-4.1.0.Final.jar:4.1.0.Final]尝试增加MaxNoOfFiredTriggers并没有导致任何行为的改变。
当然,我可以将事务分成较小的批次,但对于一个数字来说,5000行听起来并不是那么大,特别奇怪的是,insert实际上工作得很好。
https://stackoverflow.com/questions/38201110
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