[enhancement](config) enable single_replica_load by default in BE (#26619)

Signed-off-by: freemandealer <freeman.zhang1992@gmail.com>

be/src/common/config.cpp

@@ -457,7 +457,7 @@ DEFINE_Int32(webserver_num_workers, "48");
 // Period to update rate counters and sampling counters in ms.
 DEFINE_mInt32(periodic_counter_update_period_ms, "500");
 
-DEFINE_Bool(enable_single_replica_load, "false");
+DEFINE_Bool(enable_single_replica_load, "true");
 // Number of download workers for single replica load
 DEFINE_Int32(single_replica_load_download_num_workers, "64");
 

docs/en/docs/admin-manual/config/be-config.md

@@ -721,7 +721,7 @@ BaseCompaction:546859:
 #### `enable_single_replica_load`
 
 * Description: Whether to enable the single-copy data import function
-* Default value: false
+* Default value: true
 
 #### `load_error_log_reserve_hours`
 

docs/en/docs/faq/sql-faq.md

@@ -97,5 +97,5 @@ If the `curl 77: Problem with the SSL CA cert` error appears in the be.INFO log.
 
 ### Q7. import error："Message": "[INTERNAL_ERROR]single replica load is disabled on BE."
 
-1. Add parameters in be.conf : enable_single_replica_load = true
-2.  Restart the BE node.
+1. Make sure this parameters `enable_single_replica_load` in be.conf is set true
+2.  Restart the BE node.

docs/zh-CN/docs/admin-manual/config/be-config.md

@@ -747,7 +747,7 @@ BaseCompaction:546859:
 #### `enable_single_replica_load`
 
 * 描述: 是否启动单副本数据导入功能
-* 默认值: false
+* 默认值: true
 
 #### `load_error_log_reserve_hours`