[Doc] Add description for FE configuration tablet_sched_be_down_tolerate_time_s (backport #45442) (#45451)

Signed-off-by: 絵空事スピリット <[email protected]>
Co-authored-by: yiming <[email protected]>
Co-authored-by: 絵空事スピリット <[email protected]>

Author: 3 people

docs/en/administration/Configuration.md

@@ -168,6 +168,7 @@ ADMIN SET FRONTEND CONFIG ("key" = "value");
 | tablet_sched_min_clone_task_timeout_sec       | s    | 3 \* 60                | The minimum timeout duration for cloning a tablet, in seconds. |
 | tablet_sched_max_clone_task_timeout_sec       | s    | 2 \* 60 \* 60          | The maximum timeout duration for cloning a tablet, in seconds. The alias is `max_clone_task_timeout_sec`. |
 | tablet_sched_max_not_being_scheduled_interval_ms | ms   | 15 \* 60 \* 100 | When the tablet clone tasks are being scheduled, if a tablet has not been scheduled for the specified time in this parameter, StarRocks gives it a higher priority to schedule it as soon as possible. |
+| tablet_sched_be_down_tolerate_time_s | s   | 900 | The maximum duration the scheduler allows for a BE node to remain inactive. After the time threshold is reached, tablets on that BE node will be migrated to other active BE nodes. |
 
 #### Other FE dynamic parameters
 

docs/zh/administration/Configuration.md

@@ -165,6 +165,7 @@ ADMIN SET FRONTEND CONFIG ("key" = "value");
 |tablet_sched_min_clone_task_timeout_sec|3 \* 60|克隆 Tablet 的最小超时时间，单位为秒。|
 |tablet_sched_max_clone_task_timeout_sec|2 \* 60 \* 60|克隆 Tablet 的最大超时时间，单位为秒。参数别名 `max_clone_task_timeout_sec`。|
 |tablet_sched_max_not_being_scheduled_interval_ms|15 \* 60 \* 100|克隆 Tablet 调度时，如果超过该时间一直未被调度，则将该 Tablet 的调度优先级升高，以尽可能优先调度。|
+|tablet_sched_be_down_tolerate_time_s|900|调度器容忍 BE 节点保持不存活状态的最长时间。超时之后该节点上的 Tablet 会被迁移到其他存活的 BE 节点上。单位：Seconds。|
 
 #### 其他动态参数