diff --git a/production-deployment-using-tiup.md b/production-deployment-using-tiup.md
index 171f4e6e5417f..b5ec2c7d689b5 100644
--- a/production-deployment-using-tiup.md
+++ b/production-deployment-using-tiup.md
@@ -204,3 +204,4 @@ If you have deployed [TiFlash](/tiflash/tiflash-overview.md) along with the TiDB
 If you have deployed [TiCDC](/ticdc/ticdc-overview.md) along with the TiDB cluster, see the following documents:
 
 - [Manage TiCDC Cluster and Replication Tasks](/ticdc/manage-ticdc.md)
+- [Troubleshoot TiCDC](/ticdc/troubleshoot-ticdc.md)
\ No newline at end of file
diff --git a/ticdc/manage-ticdc.md b/ticdc/manage-ticdc.md
index 9d8d047799048..4019ca264a8b1 100644
--- a/ticdc/manage-ticdc.md
+++ b/ticdc/manage-ticdc.md
@@ -28,7 +28,7 @@ For details, refer to [Deploy a TiDB Cluster Using TiUP](/production-deployment-
 
 1. First, make sure that the current TiDB version supports TiCDC; otherwise, you need to upgrade the TiDB cluster to `v4.0.0 rc.1` or later versions.
 
-2. To deploy TiCDC, refer to [Scale out a TiDB/TiKV/PD/TiCDC node](/scale-tidb-using-tiup.md#scale-out-a-tidbtikvpdticdc-node).
+2. To deploy TiCDC, refer to [Scale out a TiCDC node](/scale-tidb-using-tiup.md#scale-out-a-ticdc-node).
 
 ### Use Binary
 
diff --git a/tiflash/maintain-tiflash.md b/tiflash/maintain-tiflash.md
index a13641ecee062..14b4b5034c3a7 100644
--- a/tiflash/maintain-tiflash.md
+++ b/tiflash/maintain-tiflash.md
@@ -7,7 +7,7 @@ aliases: ['/docs/dev/tiflash/maintain-tiflash/','/docs/dev/reference/tiflash/mai
 
 # Maintain a TiFlash Cluster
 
-This document describes how to perform common operations when you maintain a TiFlash cluster, including checking the TiFlash version. This document also introduces critical logs and a system table of TiFlash.
+This document describes how to perform common operations when you maintain a [TiFlash](/tiflash/tiflash-overview.md) cluster, including checking the TiFlash version. This document also introduces critical logs and a system table of TiFlash.
 
 ## Check the TiFlash version
 
diff --git a/tiflash/tiflash-configuration.md b/tiflash/tiflash-configuration.md
index 578386944a3c6..a79134aeb47e2 100644
--- a/tiflash/tiflash-configuration.md
+++ b/tiflash/tiflash-configuration.md
@@ -78,7 +78,8 @@ Multiple TiFlash nodes elect a master to add or delete placement rules to PD, an
 [profiles]
 [profiles.default]
     dt_enable_logical_split = true # The default value is `true`. This parameter determines whether the segment of DeltaTree Storage Engine uses logical split. Using the logical split can reduce the write amplification, and improve the write speed. However, these are at the cost of disk space waste.
-    max_memory_usage_for_all_queries = 0 # The memory usage limit of the generated intermediate data when queries are executed. The default value is `0` (in bytes), which means no limit.
+    max_memory_usage = 10000000000 # The memory usage limit for the generated intermediate data when a single coprocessor query is executed. The default value is 10,000,000,000 (in bytes). If set to 0, it means no limit.
+    max_memory_usage_for_all_queries = 0 # The memory usage limit for the generated intermediate data when all queries are executed. The default value is 0 (in bytes), which means no limit.
 ```
 
 ### Configure the `tiflash-learner.toml` file