解决mongo报错(IllegalOperation) Transaction numbers are only allowed on a replica set member

问题:

        mongo未开启复制,进行事务管理时，在发生异常时session无法完成回滚

解决方法:

        mongo开启副本集功能.

#停止mongo
systemctl stop mongod
systemctl status mongod

#备份配置文件
cp -a  /etc/mongod.conf /etc/mongod.conf.bk

#编辑配置文件
vim  /etc/mongod.conf
#添加以下内容
replication:
  oplogSizeMB: 2000
  replSetName: rs0   
  enableMajorityReadConcern: true

#保存
#启动mongo
systemctl start mongod
systemctl status mongod


##初始化副本
mongosh
mongosh> rs.initiate( { _id: "rs0", version: 1, members: [ { _id: 0, host: "localhost:27016" } ] })
mongosh> rs.status

  replication:
    oplogSizeMB: 2000
    replSetName: rs0
    enableMajorityReadConcern: true