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| 1 | +# FAQ |
| 2 | + |
| 3 | +## 采用MYSQL数据库存储,如何从`2.0.19`版本升级到`2.1.0`? |
| 4 | + |
| 5 | +在2.0.19版本存储的数据库中执行一下指令即可: |
| 6 | +```sql |
| 7 | + |
| 8 | +ALTER TABLE `PolicyModel` ADD `f_http_model` TEXT; |
| 9 | + |
| 10 | +ALTER TABLE `LogTrace` ADD `f_timezone` int(5) DEFAULT 0; |
| 11 | + |
| 12 | +ALTER TABLE `ProxySubConfig` ADD `f_enable` bit(1) DEFAULT 0; |
| 13 | + |
| 14 | +-- 2.1.0 新增离线消息表 |
| 15 | +CREATE TABLE IF NOT EXISTS `OfflineMessage` ( |
| 16 | + `id` varchar(60) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL, |
| 17 | + `f_client_id` varchar(60) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL, |
| 18 | + `f_topic` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL, |
| 19 | + `f_qos` tinyint(5) NOT NULL, |
| 20 | + `f_retain` bit(1) NOT NULL, |
| 21 | + `f_payload` blob NOT NULL, |
| 22 | + `f_timestamp` bigint(20) NOT NULL, |
| 23 | + `f_node_ip` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL, |
| 24 | + PRIMARY KEY (`id`) USING BTREE, |
| 25 | + KEY `idx_client_id` (`f_client_id`) USING BTREE, |
| 26 | + KEY `idx_timestamp` (`f_timestamp`) USING BTREE |
| 27 | +) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci; |
| 28 | + |
| 29 | +-- 2.1.0 新增规则引擎性能监控表 |
| 30 | +CREATE TABLE IF NOT EXISTS `RuleEngineMetrics` ( |
| 31 | + `id` varchar(60) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL, |
| 32 | + `f_rule_id` varchar(60) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci NOT NULL, |
| 33 | + `f_execution_count` bigint(20) DEFAULT 0, |
| 34 | + `f_execution_time` bigint(20) DEFAULT 0, |
| 35 | + `f_error_count` bigint(20) DEFAULT 0, |
| 36 | + `f_timestamp` bigint(20) NOT NULL, |
| 37 | + PRIMARY KEY (`id`) USING BTREE, |
| 38 | + KEY `idx_rule_id` (`f_rule_id`) USING BTREE, |
| 39 | + KEY `idx_timestamp` (`f_timestamp`) USING BTREE |
| 40 | +) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci; |
| 41 | + |
| 42 | +``` |
| 43 | + |
| 44 | +## 集群新增节点、下线节点需要重启集群吗? |
| 45 | + |
| 46 | +当集群新增节点时候,只需要新增的节点配置已启动集群节点的任一IP,即可完成集群的动态接入,无需重源节点机器 |
| 47 | + |
| 48 | +## FluxMQ同一个ClientID集群中可以重复连接吗? |
| 49 | + |
| 50 | +FluxMQ默认同一集群采用互踢策略,一个ClientID同一时间只允许一个在线,后者会将前者剔除下线 |
| 51 | + |
| 52 | +## 部署集群安全组需要打开哪些端口? |
| 53 | +- 48880 集群eventbus内部通信端口 |
| 54 | +- 48500 缓存同步端口 |
| 55 | +- 47100 集群内部通信端口 |
| 56 | + |
| 57 | + |
| 58 | +## 支持proxy_protocol透传客户端ip等信息吗? |
| 59 | + |
| 60 | +FluxMQ支持开启proxy_protocol解析,解析后的连接的ip会自动被proxy_protocol头携带的源IP覆盖 |
| 61 | + |
| 62 | +```YAML |
| 63 | +mqtt: # tcp配置 |
| 64 | + port: 1887 # mqtt端口号 |
| 65 | + wiretap: false # 二进制日志 前提是 logLevel = DEBUG |
| 66 | + messageMaxSize: 4194304 # 接收消息的最大限制 默认4194304(4M) |
| 67 | + proxy: false # 默认false, 支持HAProxy协议解析 |
| 68 | + options: |
| 69 | + SO_BACKLOG: 2000 |
| 70 | +``` |
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