delay replication

data/3.MySQL高阶/6.运维与架构/10.分区/config.json

-{
-  "node_id": "mysql-ac73930a15c149b9ba0b250e46a109e2",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "keywords_must": [],
-  "keywords_forbid": [],
-  "group": 0
-}
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/10.分区/node.txt

-第十八章
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/3.从主从复制到链式复制/config.json

 {
   "node_id": "mysql-88333dcb84a946a78bfd9f413c6e795b",
-  "keywords": [],
+  "keywords": ["chains", "slave", "master", "主从复制", "replication"],
   "children": [],
   "export": [
     "ms2chains.json"

data/3.MySQL高阶/6.运维与架构/4.从链式复制到主从复制/config.json

 {
   "node_id": "mysql-2f6f847907d4415788e98d2f70f64d3c",
   "keywords": [
-    "链式复制",
-    "主从复制"
+    "chains",
+    "slave",
+    "master",
+    "主从复制",
+    "replication"
   ],
   "children": [],
   "export": [

data/3.MySQL高阶/6.运维与架构/5.多源复制/config.json

 {
   "node_id": "mysql-91ba7f7a6b684b8aad01abd583cf0442",
-  "keywords": [],
+  "keywords": ["多源复制", "multimaster", "replication"],
   "children": [],
   "export": [
     "multimaster.json"

data/3.MySQL高阶/6.运维与架构/6.复制过滤器/config.json

 {
   "node_id": "mysql-b3cba2e9c7ea46d5beeb1948b41a74d5",
-  "keywords": ["复制过滤器","filter"],
+  "keywords": [
+    "复制过滤器",
+    "filter",
+    "replication"
+  ],
   "children": [],
-  "export": [],
+  "export": [
+    "filter.json"
+  ],
   "keywords_must": [],
   "keywords_forbid": [],
   "group": 0

data/3.MySQL高阶/6.运维与架构/6.复制过滤器/filter.json

@@ -3,5 +3,5 @@
   "author": "ccat",
   "source": "filter.md",
   "notebook_enable": false,
-  "exercise_id": "117eea79277e4a7199307f48e96e2998"
+  "exercise_id": "10d03ac17b0148509d1464cac9b1329a"
 }
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/7.延迟复制/config.json

 {
   "node_id": "mysql-9dee640902204fcbbe780c0f04bc7c18",
-  "keywords": ["delay", "延迟复制"],
+  "keywords": [
+    "delay",
+    "延迟复制",
+    "replication"
+  ],
   "children": [],
-  "export": [],
+  "export": [
+    "delay.json"
+  ],
   "keywords_must": [],
   "keywords_forbid": [],
   "group": 0

data/3.MySQL高阶/6.运维与架构/7.延迟复制/delay.json

+{
+  "type": "code_options",
+  "author": "ccat",
+  "source": "delay.md",
+  "notebook_enable": false,
+  "exercise_id": "e1ee4c066ee8499382c61d0717ccc970"
+}
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/7.延迟复制/delay.md

+# 延迟复制
+
+在`主从复制`一节里，Joe实现了一个点对点的主从复制架构，其中standby 是 trade的从库，现在，
+Joe 要添加一个名为 backup 的新的复制节点，这个节点的同步进度要比 trade 晚半小时。他应该怎么做？
+
+## 答案
+
+按 `添加从库` 一节的步骤添加 backup 节点，在设置 backup 的主库订阅信息时，加入 `MASTER_DELAY=1800;`
+
+## 选项
+
+### A
+
+按 `添加从库` 一节的步骤添加 backup 节点，在设置 backup 的主库订阅信息时，加入 `MASTER_DELAY=0.5;`
+
+### B
+
+按 `添加从库` 一节的步骤添加 backup 节点，在主库重启推送之前，执行 `SET BACKUP_DELAY=1800`
+
+
+### C
+
+所有都不对
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/8.读写分离/config.json

-{
-  "node_id": "mysql-f4d43d35c4c846baa2761d02fff5b09a",
-  "keywords": ["读写分离"],
-  "children": [],
-  "export": [],
-  "keywords_must": [],
-  "keywords_forbid": [],
-  "group": 0
-}
\ No newline at end of file

data/3.MySQL高阶/6.运维与架构/9.HA高可用/config.json

-{
-  "node_id": "mysql-46c46e16ac404db99e61412a948e3a3c",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "keywords_must": [],
-  "keywords_forbid": [],
-  "group": 0
-}
\ No newline at end of file

data/tree.json

@@ -2366,7 +2366,13 @@
                   {
                     "从主从复制到链式复制": {
                       "node_id": "mysql-88333dcb84a946a78bfd9f413c6e795b",
-                      "keywords": [],
+                      "keywords": [
+                        "chains",
+                        "slave",
+                        "master",
+                        "主从复制",
+                        "replication"
+                      ],
                       "children": [],
                       "keywords_must": [],
                       "keywords_forbid": [],
@@ -2377,8 +2383,11 @@
                     "从链式复制到主从复制": {
                       "node_id": "mysql-2f6f847907d4415788e98d2f70f64d3c",
                       "keywords": [
-                        "链式复制",
-                        "主从复制"
+                        "chains",
+                        "slave",
+                        "master",
+                        "主从复制",
+                        "replication"
                       ],
                       "children": [],
                       "keywords_must": [],
@@ -2389,7 +2398,11 @@
                   {
                     "多源复制": {
                       "node_id": "mysql-91ba7f7a6b684b8aad01abd583cf0442",
-                      "keywords": [],
+                      "keywords": [
+                        "多源复制",
+                        "multimaster",
+                        "replication"
+                      ],
                       "children": [],
                       "keywords_must": [],
                       "keywords_forbid": [],
@@ -2400,7 +2413,9 @@
                     "复制过滤器": {
                       "node_id": "mysql-b3cba2e9c7ea46d5beeb1948b41a74d5",
                       "keywords": [
-                        "复制过滤器"
+                        "复制过滤器",
+                        "filter",
+                        "replication"
                       ],
                       "children": [],
                       "keywords_must": [],
@@ -2411,37 +2426,11 @@
                   {
                     "延迟复制": {
                       "node_id": "mysql-9dee640902204fcbbe780c0f04bc7c18",
-                      "keywords": [],
-                      "children": [],
-                      "keywords_must": [],
-                      "keywords_forbid": [],
-                      "group": 0
-                    }
-                  },
-                  {
-                    "读写分离": {
-                      "node_id": "mysql-f4d43d35c4c846baa2761d02fff5b09a",
-                      "keywords": [],
-                      "children": [],
-                      "keywords_must": [],
-                      "keywords_forbid": [],
-                      "group": 0
-                    }
-                  },
-                  {
-                    "HA高可用": {
-                      "node_id": "mysql-46c46e16ac404db99e61412a948e3a3c",
-                      "keywords": [],
-                      "children": [],
-                      "keywords_must": [],
-                      "keywords_forbid": [],
-                      "group": 0
-                    }
-                  },
-                  {
-                    "分区": {
-                      "node_id": "mysql-ac73930a15c149b9ba0b250e46a109e2",
-                      "keywords": [],
+                      "keywords": [
+                        "delay",
+                        "延迟复制",
+                        "replication"
+                      ],
                       "children": [],
                       "keywords_must": [],
                       "keywords_forbid": [],