Open-Falcon数据库表结构

Open-Falcon数据库表结构

1_uic-db-schema.sql

create database uic
  DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;
USE uic;
SET NAMES utf8;

DROP TABLE if exists team;
CREATE TABLE `team` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(64) NOT NULL,
  `resume` varchar(255) not null default '',
  `creator` int(10) unsigned NOT NULL DEFAULT '0',
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_team_name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

/**
 * role: -1:blocked 0:normal 1:admin 2:root
 */
DROP TABLE if exists `user`;
CREATE TABLE `user` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(64) NOT NULL,
  `passwd` varchar(64) not null default '',
  `cnname` varchar(128) not null default '',
  `email` varchar(255) not null default '',
  `phone` varchar(16) not null default '',
  `im` varchar(32) not null default '',
  `qq` varchar(16) not null default '',
  `role` tinyint not null default 0,
  `creator` int(10) unsigned NOT NULL DEFAULT 0,
  `created` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_user_name` (`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

DROP TABLE if exists `rel_team_user`;
CREATE TABLE `rel_team_user` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `tid` int(10) unsigned not null,
  `uid` int(10) unsigned not null,
  PRIMARY KEY (`id`),
  KEY `idx_rel_tid` (`tid`),
  KEY `idx_rel_uid` (`uid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

DROP TABLE if exists `session`;
CREATE TABLE `session` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `uid` int(10) unsigned not null,
  `sig` varchar(32) not null,
  `expired` int(10) unsigned not null,
  PRIMARY KEY (`id`),
  KEY `idx_session_uid` (`uid`),
  KEY `idx_session_sig` (`sig`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

/*900150983cd24fb0d6963f7d28e17f72*/
/*insert into `user`(`name`, `passwd`, `role`, `created`) values('root', md5('abc'), 2, now());*/

2_portal-db-schema.sql

CREATE DATABASE falcon_portal
  DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;
USE falcon_portal;
SET NAMES utf8;

/**
 * 这里的机器是从机器管理系统中同步过来的
 * 系统拿出来单独部署需要为hbs增加功能，心跳上来的机器写入host表
 */
DROP TABLE IF EXISTS host;
CREATE TABLE host
(
  id             INT UNSIGNED NOT NULL AUTO_INCREMENT,
  hostname       VARCHAR(255) NOT NULL DEFAULT '',
  ip             VARCHAR(16)  NOT NULL DEFAULT '',
  agent_version  VARCHAR(16)  NOT NULL DEFAULT '',
  plugin_version VARCHAR(128) NOT NULL DEFAULT '',
  maintain_begin INT UNSIGNED NOT NULL DEFAULT 0,
  maintain_end   INT UNSIGNED NOT NULL DEFAULT 0,
  update_at      TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY idx_host_hostname (hostname)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


/**
 * 机器分组信息
 * come_from 0: 从机器管理同步过来的；1: 从页面创建的
 */
DROP TABLE IF EXISTS grp;
CREATE TABLE `grp` (
  id          INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  grp_name    VARCHAR(255)     NOT NULL DEFAULT '',
  create_user VARCHAR(64)      NOT NULL DEFAULT '',
  create_at   TIMESTAMP        NOT NULL DEFAULT CURRENT_TIMESTAMP,
  come_from   TINYINT(4)       NOT NULL DEFAULT '0',
  PRIMARY KEY (id),
  UNIQUE KEY idx_host_grp_grp_name (grp_name)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


DROP TABLE IF EXISTS grp_host;
CREATE TABLE grp_host
(
  grp_id  INT UNSIGNED NOT NULL,
  host_id INT UNSIGNED NOT NULL,
  KEY idx_grp_host_grp_id (grp_id),
  KEY idx_grp_host_host_id (host_id)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


/**
 * 监控策略模板
 * tpl_name全局唯一，命名的时候可以适当带上一些前缀，比如：sa.falcon.base
 */
DROP TABLE IF EXISTS tpl;
CREATE TABLE tpl
(
  id          INT UNSIGNED NOT NULL AUTO_INCREMENT,
  tpl_name    VARCHAR(255) NOT NULL DEFAULT '',
  parent_id   INT UNSIGNED NOT NULL DEFAULT 0,
  action_id   INT UNSIGNED NOT NULL DEFAULT 0,
  create_user VARCHAR(64)  NOT NULL DEFAULT '',
  create_at   TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY idx_tpl_name (tpl_name),
  KEY idx_tpl_create_user (create_user)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


DROP TABLE IF EXISTS strategy;
CREATE TABLE `strategy` (
  `id`          INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `metric`      VARCHAR(128)     NOT NULL DEFAULT '',
  `tags`        VARCHAR(256)     NOT NULL DEFAULT '',
  `max_step`    INT(11)          NOT NULL DEFAULT '1',
  `priority`    TINYINT(4)       NOT NULL DEFAULT '0',
  `func`        VARCHAR(16)      NOT NULL DEFAULT 'all(#1)',
  `op`          VARCHAR(8)       NOT NULL DEFAULT '',
  `right_value` VARCHAR(64)      NOT NULL,
  `note`        VARCHAR(128)     NOT NULL DEFAULT '',
  `run_begin`   VARCHAR(16)      NOT NULL DEFAULT '',
  `run_end`     VARCHAR(16)      NOT NULL DEFAULT '',
  `tpl_id`      INT(10) UNSIGNED NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`),
  KEY `idx_strategy_tpl_id` (`tpl_id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


DROP TABLE IF EXISTS expression;
CREATE TABLE `expression` (
  `id`          INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `expression`  VARCHAR(1024)    NOT NULL,
  `func`        VARCHAR(16)      NOT NULL DEFAULT 'all(#1)',
  `op`          VARCHAR(8)       NOT NULL DEFAULT '',
  `right_value` VARCHAR(16)      NOT NULL DEFAULT '',
  `max_step`    INT(11)          NOT NULL DEFAULT '1',
  `priority`    TINYINT(4)       NOT NULL DEFAULT '0',
  `note`        VARCHAR(1024)    NOT NULL DEFAULT '',
  `action_id`   INT(10) UNSIGNED NOT NULL DEFAULT '0',
  `create_user` VARCHAR(64)      NOT NULL DEFAULT '',
  `pause`       TINYINT(1)       NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


DROP TABLE IF EXISTS grp_tpl;
CREATE TABLE `grp_tpl` (
  `grp_id`    INT(10) UNSIGNED NOT NULL,
  `tpl_id`    INT(10) UNSIGNED NOT NULL,
  `bind_user` VARCHAR(64)      NOT NULL DEFAULT '',
  KEY `idx_grp_tpl_grp_id` (`grp_id`),
  KEY `idx_grp_tpl_tpl_id` (`tpl_id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;

CREATE TABLE `plugin_dir` (
  `id`          INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `grp_id`      INT(10) UNSIGNED NOT NULL,
  `dir`         VARCHAR(255)     NOT NULL,
  `create_user` VARCHAR(64)      NOT NULL DEFAULT '',
  `create_at`   TIMESTAMP        NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_plugin_dir_grp_id` (`grp_id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;


DROP TABLE IF EXISTS action;
CREATE TABLE `action` (
  `id`                   INT(10) UNSIGNED NOT NULL AUTO_INCREMENT,
  `uic`                  VARCHAR(255)     NOT NULL DEFAULT '',
  `url`                  VARCHAR(255)     NOT NULL DEFAULT '',
  `callback`             TINYINT(4)       NOT NULL DEFAULT '0',
  `before_callback_sms`  TINYINT(4)       NOT NULL DEFAULT '0',
  `before_callback_mail` TINYINT(4)       NOT NULL DEFAULT '0',
  `after_callback_sms`   TINYINT(4)       NOT NULL DEFAULT '0',
  `after_callback_mail`  TINYINT(4)       NOT NULL DEFAULT '0',
  PRIMARY KEY (`id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;

/**
 * nodata mock config
 */
DROP TABLE IF EXISTS `mockcfg`;
CREATE TABLE `mockcfg` (
  `id`       BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT,
  `name`     VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'name of mockcfg, used for uuid',
  `obj`      VARCHAR(10240) NOT NULL DEFAULT '' COMMENT 'desc of object',
  `obj_type` VARCHAR(255) NOT NULL DEFAULT '' COMMENT 'type of object, host or group or other',
  `metric`   VARCHAR(128) NOT NULL DEFAULT '',
  `tags`     VARCHAR(1024) NOT NULL DEFAULT '',
  `dstype`   VARCHAR(32)  NOT NULL DEFAULT 'GAUGE',
  `step`     INT(11) UNSIGNED  NOT NULL DEFAULT 60,
  `mock`     DOUBLE  NOT NULL DEFAULT 0  COMMENT 'mocked value when nodata occurs',
  `creator`  VARCHAR(64)  NOT NULL DEFAULT '',
  `t_create` DATETIME NOT NULL COMMENT 'create time',
  `t_modify` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT 'last modify time',
  PRIMARY KEY (`id`),
  UNIQUE KEY `uniq_name` (`name`)
)
  ENGINE=InnoDB
  DEFAULT CHARSET=utf8
  COLLATE=utf8_unicode_ci;

/**
 *  aggregator cluster metric config table
 */
DROP TABLE IF EXISTS `cluster`;
CREATE TABLE `cluster` (
  `id`          INT UNSIGNED   NOT NULL AUTO_INCREMENT,
  `grp_id`      INT            NOT NULL,
  `numerator`   VARCHAR(10240) NOT NULL,
  `denominator` VARCHAR(10240) NOT NULL,
  `endpoint`    VARCHAR(255)   NOT NULL,
  `metric`      VARCHAR(255)   NOT NULL,
  `tags`        VARCHAR(255)   NOT NULL,
  `ds_type`     VARCHAR(255)   NOT NULL,
  `step`        INT            NOT NULL,
  `last_update` TIMESTAMP      NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `creator`     VARCHAR(255)   NOT NULL,
  PRIMARY KEY (`id`)
)
  ENGINE =InnoDB
  DEFAULT CHARSET=utf8
  COLLATE=utf8_unicode_ci;

/**
 * alert links
 */
DROP TABLE IF EXISTS alert_link;
CREATE TABLE alert_link
(
  id        INT UNSIGNED NOT NULL AUTO_INCREMENT,
  path      VARCHAR(16)  NOT NULL DEFAULT '',
  content   TEXT         NOT NULL,
  create_at TIMESTAMP    NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (id),
  UNIQUE KEY alert_path(path)
)
  ENGINE =InnoDB
  DEFAULT CHARSET =utf8
  COLLATE =utf8_unicode_ci;

3_dashboard-db-schema.sql

-- MySQL dump 10.13  Distrib 5.5.31, for Linux (x86_64)
--
-- Host: 127.0.0.1    Database: dashboard
-- ------------------------------------------------------
-- Server version	5.5.31-log

/*!40101 SET @OLD_CHARACTER_SET_CLIENT=@@CHARACTER_SET_CLIENT */;
/*!40101 SET @OLD_CHARACTER_SET_RESULTS=@@CHARACTER_SET_RESULTS */;
/*!40101 SET @OLD_COLLATION_CONNECTION=@@COLLATION_CONNECTION */;
/*!40101 SET NAMES utf8 */;
/*!40103 SET @OLD_TIME_ZONE=@@TIME_ZONE */;
/*!40103 SET TIME_ZONE='+00:00' */;
/*!40014 SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0 */;
/*!40014 SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0 */;
/*!40101 SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='NO_AUTO_VALUE_ON_ZERO' */;
/*!40111 SET @OLD_SQL_NOTES=@@SQL_NOTES, SQL_NOTES=0 */;

--
-- Table structure for table `dashboard_graph`
--

CREATE DATABASE dashboard
  DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;
USE dashboard;
SET NAMES utf8;

DROP TABLE IF EXISTS `dashboard_graph`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `dashboard_graph` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `title` char(128) NOT NULL,
  `hosts` varchar(10240) NOT NULL DEFAULT '',
  `counters` varchar(1024) NOT NULL DEFAULT '',
  `screen_id` int(11) unsigned NOT NULL,
  `timespan` int(11) unsigned NOT NULL DEFAULT '3600',
  `graph_type` char(2) NOT NULL DEFAULT 'h',
  `method` char(8) DEFAULT '',
  `position` int(11) unsigned NOT NULL DEFAULT '0',
  `falcon_tags` varchar(512) NOT NULL DEFAULT '',
  PRIMARY KEY (`id`),
  KEY `idx_sid` (`screen_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Table structure for table `dashboard_screen`
--

DROP TABLE IF EXISTS `dashboard_screen`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `dashboard_screen` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `pid` int(11) unsigned NOT NULL DEFAULT '0',
  `name` char(128) NOT NULL,
  `time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  KEY `idx_pid` (`pid`),
  UNIQUE KEY `idx_pid_n` (`pid`,`name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;

--
-- Table structure for table `tmp_graph`
--

DROP TABLE IF EXISTS `tmp_graph`;
/*!40101 SET @saved_cs_client     = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `tmp_graph` (
  `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
  `endpoints` varchar(10240) NOT NULL DEFAULT '',
  `counters` varchar(10240) NOT NULL DEFAULT '',
  `ck` varchar(32) NOT NULL,
  `time_` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_ck` (`ck`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
/*!40101 SET character_set_client = @saved_cs_client */;
/*!40103 SET TIME_ZONE=@OLD_TIME_ZONE */;

/*!40101 SET SQL_MODE=@OLD_SQL_MODE */;
/*!40014 SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS */;
/*!40014 SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS */;
/*!40101 SET CHARACTER_SET_CLIENT=@OLD_CHARACTER_SET_CLIENT */;
/*!40101 SET CHARACTER_SET_RESULTS=@OLD_CHARACTER_SET_RESULTS */;
/*!40101 SET COLLATION_CONNECTION=@OLD_COLLATION_CONNECTION */;
/*!40111 SET SQL_NOTES=@OLD_SQL_NOTES */;

4_graph-db-schema.sql

CREATE DATABASE graph
  DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;
USE graph;
SET NAMES utf8;

DROP TABLE if exists `graph`.`endpoint`;
CREATE TABLE `graph`.`endpoint` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `endpoint` varchar(255) NOT NULL DEFAULT '',
  `ts` int(11) DEFAULT NULL,
  `t_create` DATETIME NOT NULL COMMENT 'create time',
  `t_modify` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT 'last modify time',
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_endpoint` (`endpoint`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

DROP TABLE if exists `graph`.`endpoint_counter`;
CREATE TABLE `graph`.`endpoint_counter` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `endpoint_id` int(10) unsigned NOT NULL,
  `counter` varchar(255) NOT NULL DEFAULT '',
  `step` int(11) not null default 60 comment 'in second',
  `type` varchar(16) not null comment 'GAUGE|COUNTER|DERIVE',
  `ts` int(11) DEFAULT NULL,
  `t_create` DATETIME NOT NULL COMMENT 'create time',
  `t_modify` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT 'last modify time',
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_endpoint_id_counter` (`endpoint_id`, `counter`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

DROP TABLE if exists `graph`.`tag_endpoint`;
CREATE TABLE `graph`.`tag_endpoint` (
  `id` int(10) unsigned NOT NULL AUTO_INCREMENT,
  `tag` varchar(255) NOT NULL DEFAULT '' COMMENT 'srv=tv',
  `endpoint_id` int(10) unsigned NOT NULL,
  `ts` int(11) DEFAULT NULL,
  `t_create` DATETIME NOT NULL COMMENT 'create time',
  `t_modify` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP COMMENT 'last modify time',
  PRIMARY KEY (`id`),
  UNIQUE KEY `idx_tag_endpoint_id` (`tag`, `endpoint_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

5_alarms-db-schema.sql

CREATE DATABASE alarms
  DEFAULT CHARACTER SET utf8
  DEFAULT COLLATE utf8_general_ci;
USE alarms;
SET NAMES utf8;

/*
* 建立告警归档资料表, 主要存储各个告警的最后触发状况
*/
DROP TABLE IF EXISTS event_cases;
CREATE TABLE IF NOT EXISTS event_cases(
                id VARCHAR(50),
                endpoint VARCHAR(100) NOT NULL,
                metric VARCHAR(200) NOT NULL,
                func VARCHAR(50),
                cond VARCHAR(200) NOT NULL,
                note VARCHAR(500),
                max_step int(10) unsigned,
                current_step int(10) unsigned,
                priority INT(6) NOT NULL,
                status VARCHAR(20) NOT NULL,
                timestamp Timestamp NOT NULL,
                update_at Timestamp NULL DEFAULT NULL,
                closed_at Timestamp NULL DEFAULT NULL,
                closed_note VARCHAR(250),
                user_modified int(10) unsigned,
                tpl_creator VARCHAR(64),
                expression_id int(10) unsigned,
                strategy_id int(10) unsigned,
                template_id int(10) unsigned,
                process_note MEDIUMINT,
                process_status VARCHAR(20) DEFAULT 'unresolved',
                PRIMARY KEY (id),
                INDEX (endpoint, strategy_id, template_id)
)
        ENGINE =InnoDB
        DEFAULT CHARSET =utf8;


/*
* 建立告警归档资料表, 存储各个告警触发状况的历史状态
*/
DROP TABLE IF EXISTS events;
CREATE TABLE IF NOT EXISTS events (
                id MEDIUMINT NOT NULL AUTO_INCREMENT,
                event_caseId VARCHAR(50),
                step int(10) unsigned,
                cond VARCHAR(200) NOT NULL,
                status int(3) unsigned DEFAULT 0,
                timestamp Timestamp,
                PRIMARY KEY (id),
                INDEX(event_caseId),
                FOREIGN KEY (event_caseId) REFERENCES event_cases(id)
                        ON DELETE CASCADE
                        ON UPDATE CASCADE
)
        ENGINE =InnoDB
        DEFAULT CHARSET =utf8;

/*
* 告警留言表
*/
CREATE TABLE IF NOT EXISTS event_note (
  id MEDIUMINT NOT NULL AUTO_INCREMENT,
  event_caseId VARCHAR(50),
  note    VARCHAR(300),
  case_id VARCHAR(20),
  status VARCHAR(15),
  timestamp Timestamp,
  user_id int(10) unsigned,
  PRIMARY KEY (id),
  INDEX (event_caseId),
  FOREIGN KEY (event_caseId) REFERENCES event_cases(id)
    ON DELETE CASCADE
    ON UPDATE CASCADE,
  FOREIGN KEY (user_id) REFERENCES uic.user(id)
    ON DELETE CASCADE
    ON UPDATE CASCADE
);

常用比较重要的表

• falcon_portal.strategy 报警规则表

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本文作者：dongsheng
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