tidb config doc: coprocessor request timeout (#15666)

pingcap · Dec 12, 2023 · d2f02a4 · d2f02a4
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diff --git a/releases/release-7.5.0.md b/releases/release-7.5.0.md
@@ -171,6 +171,7 @@ Compared with the previous LTS 7.1.0, 7.5.0 includes new features, improvements,
 
 | Configuration file | Configuration parameter | Change type | Description |
 | -------- | -------- | -------- | -------- |
+| TiDB | [`tikv-client.copr-req-timeout`](/tidb-configuration-file.md#copr-req-timeout-new-in-v750) | Newly added | Sets the timeout of a single Coprocessor request. |
 | TiKV | [`raftstore.region-compact-min-redundant-rows`](/tikv-configuration-file.md#region-compact-min-redundant-rows-new-in-v710) | Modified | Sets the number of redundant MVCC rows required to trigger RocksDB compaction. Starting from v7.5.0, this configuration item takes effect for the `"raft-kv"` storage engine. |
 | TiKV | [`raftstore.region-compact-redundant-rows-percent`](/tikv-configuration-file.md#region-compact-redundant-rows-percent-new-in-v710) | Modified | Sets the percentage of redundant MVCC rows required to trigger RocksDB compaction. Starting from v7.5.0, this configuration item takes effect for the `"raft-kv"` storage engine. |
 | TiKV | [`raftstore.evict-cache-on-memory-ratio`](/tikv-configuration-file.md#evict-cache-on-memory-ratio-new-in-v750) | Newly added | When the memory usage of TiKV exceeds 90% of the system available memory, and the memory occupied by Raft entry cache exceeds the `evict-cache-on-memory-ratio` of used memory, TiKV evicts the Raft entry cache. |

diff --git a/tidb-configuration-file.md b/tidb-configuration-file.md
@@ -719,6 +719,16 @@ Configuration items related to opentracing.reporter.
 - The threshold of the TiKV load. If the TiKV load exceeds this threshold, more `batch` packets are collected to relieve the pressure of TiKV. It is valid only when the value of `tikv-client.max-batch-size` is greater than `0`. It is recommended not to modify this value.
 - Default value: `200`
 
+### `copr-req-timeout` <span class="version-mark">New in v7.5.0</span>
+
+> **Warning:**
+>
+> This configuration might be deprecated in future versions. **DO NOT** change the value of this configuration.
+
++ The timeout of a single Coprocessor request.
++ Default value: `60`
++ Unit: second
+
 ## tikv-client.copr-cache <span class="version-mark">New in v4.0.0</span>
 
 This section introduces configuration items related to the Coprocessor Cache feature.