flowable支持集群数据库
2024-05-13 09:18:39
需求背景：
为避免工作流单机故障，需要让工作流flowable支持集群数据库
版本信息：MySQL集群版本:8.0.22-cluster flowable版本：6.5.0.6
1、工作流里建库脚本里有varchar（4000）的字段，ndbcluster引擎中varchar长度总和最大支持varchar（7497），需要更改所有脚本里varchar（4000）的长度总和不能超过7497
2、工作流里新建表指定引擎为InnoDB，需要手动用脚本修改为ndbcluster
3、有外键约束的，先删除外键
查找外键约束的方法：select * from INFORMATION_SCHEMA.KEY_COLUMN_USAGE
where TABLE_SCHEMA = 'flowable'
AND REFERENCED_TABLE_NAME != ''
and referenced_table_name = 'act_id_group'
4、表与表之间不同的引擎，不能建立外键关系 报错信息：1824 - Failed to open the referenced table 'act_id_group'
5、外键约束ndbcluster不支持的应用场景有级联操作
执行脚本如下：
-- 删除外键约束act_id_membership
ALTER TABLE `flowable`.`act_id_membership` DROP FOREIGN KEY `ACT_FK_MEMB_GROUP`;-- 删除外键约束act_ru_event_subscr
ALTER TABLE `flowable`.`act_id_membership` DROP FOREIGN KEY `ACT_FK_MEMB_USER`;ALTER TABLE `flowable`.`act_id_priv_mapping` DROP FOREIGN KEY `ACT_FK_PRIV_MAPPING`;ALTER TABLE `flowable`.`act_procdef_info` DROP FOREIGN KEY `ACT_FK_INFO_JSON_BA`;
ALTER TABLE `flowable`.`act_procdef_info` DROP FOREIGN KEY `ACT_FK_INFO_PROCDEF`;ALTER TABLE `flowable`.`act_ge_bytearray` DROP FOREIGN KEY `ACT_FK_BYTEARR_DEPL`;ALTER TABLE `flowable`.`act_re_model` DROP FOREIGN KEY `ACT_FK_MODEL_DEPLOYMENT`;
ALTER TABLE `flowable`.`act_re_model` DROP FOREIGN KEY `ACT_FK_MODEL_SOURCE`;
ALTER TABLE `flowable`.`act_re_model` DROP FOREIGN KEY `ACT_FK_MODEL_SOURCE_EXTRA`;ALTER TABLE `flowable`.`act_ru_task` DROP FOREIGN KEY `ACT_FK_TASK_EXE`;
ALTER TABLE `flowable`.`act_ru_task` DROP FOREIGN KEY `ACT_FK_TASK_PROCDEF`;
ALTER TABLE `flowable`.`act_ru_task` DROP FOREIGN KEY `ACT_FK_TASK_PROCINST`;ALTER TABLE `flowable`.`act_ru_deadletter_job` DROP FOREIGN KEY `ACT_FK_DEADLETTER_JOB_CUSTOM_VALUES`;
ALTER TABLE `flowable`.`act_ru_deadletter_job` DROP FOREIGN KEY `ACT_FK_DEADLETTER_JOB_EXCEPTION`;
ALTER TABLE `flowable`.`act_ru_deadletter_job` DROP FOREIGN KEY `ACT_FK_DEADLETTER_JOB_EXECUTION`;
ALTER TABLE `flowable`.`act_ru_deadletter_job` DROP FOREIGN KEY `ACT_FK_DEADLETTER_JOB_PROC_DEF`;
ALTER TABLE `flowable`.`act_ru_deadletter_job` DROP FOREIGN KEY `ACT_FK_DEADLETTER_JOB_PROCESS_INSTANCE`;ALTER TABLE `flowable`.`act_ru_execution` DROP FOREIGN KEY `ACT_FK_EXE_PARENT`;
ALTER TABLE `flowable`.`act_ru_execution` DROP FOREIGN KEY `ACT_FK_EXE_PROCDEF`;
ALTER TABLE `flowable`.`act_ru_execution` DROP FOREIGN KEY `ACT_FK_EXE_PROCINST`;
ALTER TABLE `flowable`.`act_ru_execution` DROP FOREIGN KEY `ACT_FK_EXE_SUPER`;ALTER TABLE `flowable`.`act_ru_identitylink` DROP FOREIGN KEY `ACT_FK_ATHRZ_PROCEDEF`;
ALTER TABLE `flowable`.`act_ru_identitylink` DROP FOREIGN KEY `ACT_FK_IDL_PROCINST`;
ALTER TABLE `flowable`.`act_ru_identitylink` DROP FOREIGN KEY `ACT_FK_TSKASS_TASK`;ALTER TABLE `flowable`.`act_ru_job` DROP FOREIGN KEY `ACT_FK_JOB_CUSTOM_VALUES`;
ALTER TABLE `flowable`.`act_ru_job` DROP FOREIGN KEY `ACT_FK_JOB_EXCEPTION`;
ALTER TABLE `flowable`.`act_ru_job` DROP FOREIGN KEY `ACT_FK_JOB_EXECUTION`;
ALTER TABLE `flowable`.`act_ru_job` DROP FOREIGN KEY `ACT_FK_JOB_PROC_DEF`;
ALTER TABLE `flowable`.`act_ru_job` DROP FOREIGN KEY `ACT_FK_JOB_PROCESS_INSTANCE`;ALTER TABLE `flowable`.`act_ru_suspended_job` DROP FOREIGN KEY `ACT_FK_SUSPENDED_JOB_CUSTOM_VALUES`;
ALTER TABLE `flowable`.`act_ru_suspended_job` DROP FOREIGN KEY `ACT_FK_SUSPENDED_JOB_EXCEPTION`;
ALTER TABLE `flowable`.`act_ru_suspended_job` DROP FOREIGN KEY `ACT_FK_SUSPENDED_JOB_EXECUTION`;
ALTER TABLE `flowable`.`act_ru_suspended_job` DROP FOREIGN KEY `ACT_FK_SUSPENDED_JOB_PROC_DEF`;
ALTER TABLE `flowable`.`act_ru_suspended_job` DROP FOREIGN KEY `ACT_FK_SUSPENDED_JOB_PROCESS_INSTANCE`;-- 删除外键约束act_ru_timer_job
ALTER TABLE `flowable`.`act_ru_timer_job` DROP FOREIGN KEY `ACT_FK_TIMER_JOB_CUSTOM_VALUES`;
ALTER TABLE `flowable`.`act_ru_timer_job` DROP FOREIGN KEY `ACT_FK_TIMER_JOB_EXCEPTION`;
ALTER TABLE `flowable`.`act_ru_timer_job` DROP FOREIGN KEY `ACT_FK_TIMER_JOB_EXECUTION`;
ALTER TABLE `flowable`.`act_ru_timer_job` DROP FOREIGN KEY `ACT_FK_TIMER_JOB_PROC_DEF`;
ALTER TABLE `flowable`.`act_ru_timer_job` DROP FOREIGN KEY `ACT_FK_TIMER_JOB_PROCESS_INSTANCE`;-- 删除外键约束act_ru_event_subscr
ALTER TABLE `flowable`.`act_ru_event_subscr` DROP FOREIGN KEY `ACT_FK_EVENT_EXEC`;-- 删除外键约束act_ru_variable
ALTER TABLE `flowable`.`act_ru_variable` DROP FOREIGN KEY `ACT_FK_VAR_BYTEARRAY`;
ALTER TABLE `flowable`.`act_ru_variable` DROP FOREIGN KEY `ACT_FK_VAR_EXE`;
ALTER TABLE `flowable`.`act_ru_variable` DROP FOREIGN KEY `ACT_FK_VAR_PROCINST`; ALTER TABLE `flowable`.`flw_ru_batch_part` DROP FOREIGN KEY `FLW_FK_BATCH_PART_PARENT`;修改一些长度过长的字段脚本：
-- 修改表字段的长度，因为innodb varchar支持4000的长度，ndbcluster引擎中varchar长度总和最大支持varchar（7497），需要更改所有脚本里varchar（4000）的长度总和不能超过7497
ALTER TABLE `flowable`.`act_ru_deadletter_job`
MODIFY COLUMN `EXCEPTION_MSG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `EXCEPTION_STACK_ID_`,
MODIFY COLUMN `HANDLER_CFG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `HANDLER_TYPE_`;ALTER TABLE `flowable`.`act_re_procdef`
MODIFY COLUMN `RESOURCE_NAME_` varchar(2000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `DEPLOYMENT_ID_`,
MODIFY COLUMN `DGRM_RESOURCE_NAME_` varchar(2000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `RESOURCE_NAME_`,
MODIFY COLUMN `DESCRIPTION_` varchar(2000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `DGRM_RESOURCE_NAME_`;ALTER TABLE `flowable`.`act_ru_job`
MODIFY COLUMN `EXCEPTION_MSG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `EXCEPTION_STACK_ID_`,
MODIFY COLUMN `HANDLER_CFG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `HANDLER_TYPE_`;ALTER TABLE `flowable`.`act_ru_suspended_job`
MODIFY COLUMN `EXCEPTION_MSG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `EXCEPTION_STACK_ID_`,
MODIFY COLUMN `HANDLER_CFG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `HANDLER_TYPE_`;ALTER TABLE `flowable`.`act_ru_timer_job`
MODIFY COLUMN `EXCEPTION_MSG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `EXCEPTION_STACK_ID_`,
MODIFY COLUMN `HANDLER_CFG_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `HANDLER_TYPE_`;ALTER TABLE `flowable`.`act_hi_taskinst`
MODIFY COLUMN `DESCRIPTION_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `PARENT_TASK_ID_`,
MODIFY COLUMN `DELETE_REASON_` varchar(3000) CHARACTER SET utf8 COLLATE utf8_bin DEFAULT NULL AFTER `DURATION_`;
修改表的引擎为ndbcluster
alter table act_evt_log engine = 'ndbcluster';
alter table act_ge_bytearray engine = 'ndbcluster';
alter table act_ge_property engine = 'ndbcluster';
alter table act_hi_actinst engine = 'ndbcluster';
alter table act_hi_attachment engine = 'ndbcluster';
alter table act_hi_comment engine = 'ndbcluster';
alter table act_hi_detail engine = 'ndbcluster';
alter table act_hi_entitylink engine = 'ndbcluster';
alter table act_hi_identitylink engine = 'ndbcluster';
alter table act_hi_procinst engine = 'ndbcluster';
alter table act_hi_taskinst engine = 'ndbcluster';
alter table act_hi_tsk_log engine = 'ndbcluster';
alter table act_id_bytearray engine = 'ndbcluster';
alter table act_id_group engine = 'ndbcluster';
alter table act_id_info engine = 'ndbcluster';
alter table act_id_membership engine = 'ndbcluster';
alter table act_id_priv engine = 'ndbcluster';
alter table act_id_priv_mapping engine = 'ndbcluster';
alter table act_id_property engine = 'ndbcluster';
alter table act_id_token engine = 'ndbcluster';
alter table act_id_user engine = 'ndbcluster';
alter table act_node_button engine = 'ndbcluster';
alter table act_procdef_info engine = 'ndbcluster';
alter table act_re_deployment engine = 'ndbcluster';
alter table act_re_model engine = 'ndbcluster';
alter table act_re_procdef engine = 'ndbcluster';
alter table act_ru_actinst engine = 'ndbcluster';
alter table act_ru_deadletter_job engine = 'ndbcluster';
alter table act_ru_entitylink engine = 'ndbcluster';
alter table act_ru_event_subscr engine = 'ndbcluster';
alter table act_ru_execution engine = 'ndbcluster';
alter table act_ru_history_job engine = 'ndbcluster';
alter table act_ru_identitylink engine = 'ndbcluster';
alter table act_ru_job engine = 'ndbcluster';
alter table act_ru_suspended_job engine = 'ndbcluster';
alter table act_ru_task engine = 'ndbcluster';
alter table act_ru_timer_job engine = 'ndbcluster';
alter table act_ru_variable engine = 'ndbcluster';
alter table approval_comments engine = 'ndbcluster';
alter table flow_category engine = 'ndbcluster';
alter table form_category engine = 'ndbcluster';
alter table comm_settings engine = 'ndbcluster';
alter table flow_category engine = 'ndbcluster';
alter table flow_instance engine = 'ndbcluster';
alter table flw_channel_definition engine = 'ndbcluster';
alter table flw_delegate_record engine = 'ndbcluster';
alter table flw_ev_databasechangelog engine = 'ndbcluster';
alter table flw_ev_databasechangeloglock engine = 'ndbcluster';
alter table flw_event_definition engine = 'ndbcluster';
alter table flw_event_deployment engine = 'ndbcluster';
alter table flw_event_resource engine = 'ndbcluster';
alter table flw_ru_batch engine = 'ndbcluster';
alter table flw_ru_batch_part engine = 'ndbcluster';
alter table fm_data_storage engine = 'ndbcluster';
alter table fm_field_auth engine = 'ndbcluster';
alter table fm_field_data engine = 'ndbcluster';
alter table fm_model engine = 'ndbcluster';
alter table fm_model_field engine = 'ndbcluster';
alter table fm_model_version engine = 'ndbcluster';
alter table fm_process_relation engine = 'ndbcluster';
alter table fm_temporary_data_storage engine = 'ndbcluster';
alter table form_category engine = 'ndbcluster';
alter table message_notice_log engine = 'ndbcluster';
alter table message_template engine = 'ndbcluster';
alter table pm_file engine = 'ndbcluster';
alter table process_attachment engine = 'ndbcluster';
alter table process_form_auth engine = 'ndbcluster';
alter table process_init_variable engine = 'ndbcluster';
alter table process_model engine = 'ndbcluster';
alter table restapi_call_record engine = 'ndbcluster';
alter table task_circulated_record engine = 'ndbcluster';恢复框架索引信息
-- 添加外键约束act_id_membership
ALTER TABLE `flowable`.`act_id_membership`
ADD CONSTRAINT `ACT_FK_MEMB_GROUP` FOREIGN KEY (`GROUP_ID_`) REFERENCES `flowable`.`act_id_group` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;-- 添加外键约束act_id_membership
ALTER TABLE `flowable`.`act_id_membership`
ADD CONSTRAINT `ACT_FK_MEMB_USER` FOREIGN KEY (`USER_ID_`) REFERENCES `flowable`.`act_id_user` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_id_priv_mapping`
ADD CONSTRAINT `ACT_FK_PRIV_MAPPING` FOREIGN KEY (`PRIV_ID_`) REFERENCES `act_id_priv` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_procdef_info`
ADD CONSTRAINT `ACT_FK_INFO_JSON_BA` FOREIGN KEY (`INFO_JSON_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_procdef_info`
ADD CONSTRAINT `ACT_FK_INFO_PROCDEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ge_bytearray`
ADD CONSTRAINT `ACT_FK_BYTEARR_DEPL` FOREIGN KEY (`DEPLOYMENT_ID_`) REFERENCES `act_re_deployment` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_re_model`
ADD CONSTRAINT `ACT_FK_MODEL_DEPLOYMENT` FOREIGN KEY (`DEPLOYMENT_ID_`) REFERENCES `act_re_deployment` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_re_model`
ADD CONSTRAINT `ACT_FK_MODEL_SOURCE` FOREIGN KEY (`EDITOR_SOURCE_VALUE_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_re_model`
ADD CONSTRAINT `ACT_FK_MODEL_SOURCE_EXTRA` FOREIGN KEY (`EDITOR_SOURCE_EXTRA_VALUE_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_task` ADD CONSTRAINT `ACT_FK_TASK_EXE` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_task` ADD CONSTRAINT `ACT_FK_TASK_PROCDEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_task` ADD CONSTRAINT `ACT_FK_TASK_PROCINST` FOREIGN KEY (`PROC_INST_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_deadletter_job`ADD CONSTRAINT `ACT_FK_DEADLETTER_JOB_CUSTOM_VALUES` FOREIGN KEY (`CUSTOM_VALUES_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_deadletter_job`ADD CONSTRAINT `ACT_FK_DEADLETTER_JOB_EXCEPTION` FOREIGN KEY (`EXCEPTION_STACK_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_deadletter_job`ADD CONSTRAINT `ACT_FK_DEADLETTER_JOB_EXECUTION` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_deadletter_job`ADD CONSTRAINT `ACT_FK_DEADLETTER_JOB_PROC_DEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_deadletter_job`ADD CONSTRAINT `ACT_FK_DEADLETTER_JOB_PROCESS_INSTANCE` FOREIGN KEY (`PROCESS_INSTANCE_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_execution`ADD CONSTRAINT `ACT_FK_EXE_PARENT` FOREIGN KEY (`PARENT_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE CASCADE ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_execution`ADD CONSTRAINT `ACT_FK_EXE_PROCDEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
-- ALTER TABLE `flowable`.`act_ru_execution`
-- ADD CONSTRAINT `ACT_FK_EXE_PROCINST` FOREIGN KEY (`PROC_INST_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE CASCADE ON UPDATE CASCADE;
ALTER TABLE `flowable`.`act_ru_execution`ADD CONSTRAINT `ACT_FK_EXE_SUPER` FOREIGN KEY (`SUPER_EXEC_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE CASCADE ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_identitylink`ADD CONSTRAINT `ACT_FK_ATHRZ_PROCEDEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_identitylink`ADD CONSTRAINT `ACT_FK_IDL_PROCINST` FOREIGN KEY (`PROC_INST_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_identitylink`ADD CONSTRAINT `ACT_FK_TSKASS_TASK` FOREIGN KEY (`TASK_ID_`) REFERENCES `act_ru_task` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_job`ADD CONSTRAINT `ACT_FK_JOB_CUSTOM_VALUES` FOREIGN KEY (`CUSTOM_VALUES_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_job`ADD CONSTRAINT `ACT_FK_JOB_EXCEPTION` FOREIGN KEY (`EXCEPTION_STACK_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_job`ADD CONSTRAINT `ACT_FK_JOB_EXECUTION` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_job`ADD CONSTRAINT `ACT_FK_JOB_PROC_DEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_job`ADD CONSTRAINT `ACT_FK_JOB_PROCESS_INSTANCE` FOREIGN KEY (`PROCESS_INSTANCE_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`act_ru_suspended_job`ADD CONSTRAINT `ACT_FK_SUSPENDED_JOB_CUSTOM_VALUES` FOREIGN KEY (`CUSTOM_VALUES_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_suspended_job`ADD CONSTRAINT `ACT_FK_SUSPENDED_JOB_EXCEPTION` FOREIGN KEY (`EXCEPTION_STACK_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_suspended_job`ADD CONSTRAINT `ACT_FK_SUSPENDED_JOB_EXECUTION` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_suspended_job`ADD CONSTRAINT `ACT_FK_SUSPENDED_JOB_PROC_DEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_suspended_job`ADD CONSTRAINT `ACT_FK_SUSPENDED_JOB_PROCESS_INSTANCE` FOREIGN KEY (`PROCESS_INSTANCE_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;-- 添加外键约束act_ru_timer_job
ALTER TABLE `flowable`.`act_ru_timer_job`ADD CONSTRAINT `ACT_FK_TIMER_JOB_CUSTOM_VALUES` FOREIGN KEY (`CUSTOM_VALUES_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_timer_job`ADD CONSTRAINT `ACT_FK_TIMER_JOB_EXCEPTION` FOREIGN KEY (`EXCEPTION_STACK_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_timer_job`ADD CONSTRAINT `ACT_FK_TIMER_JOB_EXECUTION` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_timer_job`ADD CONSTRAINT `ACT_FK_TIMER_JOB_PROC_DEF` FOREIGN KEY (`PROC_DEF_ID_`) REFERENCES `act_re_procdef` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_timer_job`ADD CONSTRAINT `ACT_FK_TIMER_JOB_PROCESS_INSTANCE` FOREIGN KEY (`PROCESS_INSTANCE_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;-- 添加外键约束act_ru_event_subscr
ALTER TABLE `flowable`.`act_ru_event_subscr`ADD CONSTRAINT `ACT_FK_EVENT_EXEC` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;-- 添加外键约束act_ru_variable
ALTER TABLE `flowable`.`act_ru_variable`ADD CONSTRAINT `ACT_FK_VAR_BYTEARRAY` FOREIGN KEY (`BYTEARRAY_ID_`) REFERENCES `act_ge_bytearray` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_variable`ADD CONSTRAINT `ACT_FK_VAR_EXE` FOREIGN KEY (`EXECUTION_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;
ALTER TABLE `flowable`.`act_ru_variable`ADD CONSTRAINT `ACT_FK_VAR_PROCINST` FOREIGN KEY (`PROC_INST_ID_`) REFERENCES `act_ru_execution` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;ALTER TABLE `flowable`.`flw_ru_batch_part`ADD CONSTRAINT `FLW_FK_BATCH_PART_PARENT` FOREIGN KEY (`BATCH_ID_`) REFERENCES `flw_ru_batch` (`ID_`) ON DELETE RESTRICT ON UPDATE RESTRICT;希望以后flowable官网能支持ndbcluster引擎，解决单机故障问题！
这里还是要说一下，ndbcluster引擎对varchar的支持和主外键的支持都不太友好。
有任何问题欢迎微信交流，微信号：hetaolife
innodb和ndbcluster区别
https://dev.mysql.com/doc/mysql-cluster-excerpt/8.0/en/mysql-cluster-ndb-innodb-engines.html
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