TiCDC: Update TiCDC files (#2814)

TOC.md

@@ -67,7 +67,7 @@
       + [BR Use Cases](/br/backup-and-restore-use-cases.md)
       + [BR storages](/br/backup-and-restore-storages.md)
   + [Daily Checklist](/daily-check.md)
-  + [Maintain TiCDC](/ticdc/manage-ticdc.md)
+  + [Manage TiCDC Cluster and Replication Tasks](/ticdc/manage-ticdc.md)
   + [Maintain TiFlash](/tiflash/maintain-tiflash.md)
   + [Maintain TiDB Using TiUP](/maintain-tidb-using-tiup.md)
   + [Maintain TiDB Using Ansible](/maintain-tidb-using-ansible.md)
@@ -82,7 +82,7 @@
   + [Statement Summary Tables](/statement-summary-tables.md)
   + [Troubleshoot Cluster Setup](/troubleshoot-tidb-cluster.md)
   + [TiDB Troubleshooting Map](/tidb-troubleshooting-map.md)
-  + [Handle TiCDC Issues](/ticdc/troubleshoot-ticdc.md)
+  + [Troubleshoot TiCDC](/ticdc/troubleshoot-ticdc.md)
   + [Troubleshoot TiFlash](/tiflash/troubleshoot-tiflash.md)
 + Performance Tuning
   + Software Tuning
@@ -154,11 +154,7 @@
     + [Troubleshoot](/troubleshoot-tidb-lightning.md)
     + [FAQ](/tidb-lightning/tidb-lightning-faq.md)
     + [Glossary](/tidb-lightning/tidb-lightning-glossary.md)
-  + TiCDC
-    + [Overview](/ticdc/ticdc-overview.md)
-    + [Configure Sink URI](/ticdc/sink-url.md)
-    + [TiCDC Open Protocol](/ticdc/ticdc-open-protocol.md)
-    + [Column and DDL Type Codes](/ticdc/column-ddl-type-codes.md)
+  + [TiCDC](/ticdc/ticdc-overview.md)
   + sync-diff-inspector
     + [Overview](/sync-diff-inspector/sync-diff-inspector-overview.md)
     + [Data Check for Tables with Different Schema/Table Names](/sync-diff-inspector/route-diff.md)
@@ -399,6 +395,8 @@
       + [tiup-mirror](/tiup/tiup-mirrors.md)
       + [tiup-bench](/tiup/tiup-bench.md)
   + [Errors Codes](/error-codes.md)
+  + [TiCDC Overview](/ticdc/ticdc-overview.md)
+  + [TiCDC Open Protocol](/ticdc/ticdc-open-protocol.md)
 + FAQs
   + [TiDB FAQs](/faq/tidb-faq.md)
   + [TiDB Lightning FAQs](/tidb-lightning/tidb-lightning-faq.md)

daily-check.md

@@ -26,7 +26,7 @@ TiDB Dashboard simplifies the operation and maintenance of the TiDB database. Yo
 
 ![Host panel](/media/host-panel.png)
 
-You can view the usage of CPU, memory, and disk. When the average usage of any resource exceeds 60%, it is recommended to plan to scale out the capacity. When the average usage reaches 80%, it is recommended to scale out the capacity.
+You can view the usage of CPU, memory, and disk. When the usage of any resource exceeds 80%, it is recommended to scale out the capacity accordingly.
 
 ### SQL analysis panel
 

ticdc/ticdc-overview.md

@@ -67,6 +67,10 @@ Currently, The following scenarios are not supported:
 
 For details, see [Manage TiCDC Cluster and Replication Tasks](/ticdc/manage-ticdc.md).
 
+## Troubleshoot TiCDC
+
+For details, refer to [Troubleshoot TiCDC](/ticdc/troubleshoot-ticdc.md).
+
 ## TiCDC Open Protocol
 
 TiCDC Open Protocol is a row-level data change notification protocol that provides data sources for monitoring, caching, full-text indexing, analysis engines, and master-slave replication between different databases. TiCDC complies with TiCDC Open Protocol and replicates data changes of TiDB to third-party data medium such as MQ (Message Queue). For more information, see [TiCDC Open Protocol](/ticdc/ticdc-open-protocol.md).

ticdc/troubleshoot-ticdc.md

@@ -1,10 +1,10 @@
 ---
-title: Handle TiCDC Issues
-summary: Learn how to handle TiCDC issues.
+title: Troubleshoot TiCDC
+summary: Learn how to troubleshoot issues you might encounter when you use TiCDC.
 category: reference
 ---
 
-# Handle TiCDC Issues
+# Troubleshoot TiCDC
 
 This document introduces the common issues and errors that you might encounter when using TiCDC, and the corresponding maintenance and troubleshooting methods.