Solution to the data asymmetry problem between MySQL and Elasticsearch

mysql> desc article;
+-------------+--------------+------+-----+--------------------------------+-------+
| Field | Type | Null | Key | Default | Extra |
+-------------+--------------+------+-----+--------------------------------+-------+
| id | int(11) | NO | | 0 | |
| title | mediumtext | NO | | NULL | |
| description | mediumtext | YES | | NULL | |
| author | varchar(100) | YES | | NULL | |
| source | varchar(100) | YES | | NULL | |
| content | longtext | YES | | NULL | |
| status | enum('Y','N')| NO | | 'N' | |
| ctime | timestamp | NO | | CURRENT_TIMESTAMP | |
| mtime | timestamp | YES | | ON UPDATE CURRENT_TIMESTAMP | |
+-------------+--------------+------+-----+--------------------------------+-------+
7 rows in set (0.00 sec)

jdbc {
  jdbc_driver_library => "/usr/share/java/mysql-connector-java.jar"
  jdbc_driver_class => "com.mysql.jdbc.Driver"
  jdbc_connection_string => "jdbc:mysql://localhost:3306/cms"
  jdbc_user => "cms"
  jdbc_password => "password"
  schedule => "* * * * *" #Timed cron expression, here it is executed once every minute statement => "select * from article where mtime > :sql_last_value"
  use_column_value => true
  tracking_column => "mtime"
  tracking_column_type => "timestamp" 
  record_last_run => true
  last_run_metadata_path => "/var/tmp/article-mtime.last"
 }

CREATE TABLE `elasticsearch_trash` (
 `id` int(11) NOT NULL,
 `ctime` timestamp NULL DEFAULT CURRENT_TIMESTAMP,
 PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8

CREATE DEFINER=`dba`@`%` TRIGGER `article_BEFORE_UPDATE` BEFORE UPDATE ON `article` FOR EACH ROW
BEGIN
 -- The logic here is to solve the problem that when the article status becomes N, the corresponding data in the search engine needs to be deleted.
 IF NEW.status = 'N' THEN
 insert into elasticsearch_trash(id) values(OLD.id);
 END IF;
 -- The logic here is that when the status is changed to Y, the article ID still exists in the elasticsearch_trash method, resulting in accidental deletion. Therefore, you need to delete the recycling records in the Recycle Bin.
  IF NEW.status = 'Y' THEN
 delete from elasticsearch_trash where id = OLD.id;
 END IF;
END

CREATE DEFINER=`dba`@`%` TRIGGER `article_BEFORE_DELETE` BEFORE DELETE ON `article` FOR EACH ROW
BEGIN
 -- The logic here is that when an article is deleted, the article will be put into the search engine recycle bin.
 insert into elasticsearch_trash(id) values(OLD.id);
END

package cn.netkiller.api.domain.elasticsearch;

import java.util.Date;

import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.Id;
import javax.persistence.Table;

@Entity
@Table
public class ElasticsearchTrash {
 @Id
 private int id;

 @Column(columnDefinition = "TIMESTAMP DEFAULT CURRENT_TIMESTAMP")
 private Date ctime;

 public int getId() {
 return id;
 }

 public void setId(int id) {
 this.id = id;
 }

 public Date getCtime() {
 return ctime;
 }

 public void setCtime(Date ctime) {
 this.ctime = ctime;
 }

}

package cn.netkiller.api.repository.elasticsearch;

import org.springframework.data.repository.CrudRepository;

import com.example.api.domain.elasticsearch.ElasticsearchTrash;

public interface ElasticsearchTrashRepository extends CrudRepository<ElasticsearchTrash, Integer>{


}

package cn.netkiller.api.schedule;

import org.elasticsearch.action.delete.DeleteResponse;
import org.elasticsearch.client.transport.TransportClient;
import org.elasticsearch.rest.RestStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.scheduling.annotation.Scheduled;
import org.springframework.stereotype.Component;

import com.example.api.domain.elasticsearch.ElasticsearchTrash;
import com.example.api.repository.elasticsearch.ElasticsearchTrashRepository;

@Component
public class ScheduledTasks {
 private static final Logger logger = LoggerFactory.getLogger(ScheduledTasks.class);

 @Autowired
 private TransportClient client;

 @Autowired
 private ElasticsearchTrashRepository alasticsearchTrashRepository;

 public ScheduledTasks() {
 }

 @Scheduled(fixedRate = 1000 * 60) // Run the scheduled task once every 60 seconds public void cleanTrash() {
 for (ElasticsearchTrash elasticsearchTrash : alasticsearchTrashRepository.findAll()) {
  DeleteResponse response = client.prepareDelete("information", "article", elasticsearchTrash.getId() + "").get();
  RestStatus status = response.status();
  logger.info("delete {} {}", elasticsearchTrash.getId(), status.toString());
  if (status == RestStatus.OK || status == RestStatus.NOT_FOUND) {
  alasticsearchTrashRepository.delete(elasticsearchTrash);
  }
 }
 }
}

package cn.netkiller.api;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.scheduling.annotation.EnableScheduling;

@SpringBootApplication
@EnableScheduling
public class Application {

 public static void main(String[] args) {
 SpringApplication.run(Application.class, args);
 }
}