diff --git a/product/en/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md b/product/en/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
index ed07f08ea62feca91adb5ee3620619936799529f..8a2838280ffff188938ed21d15013258b9d968d3 100644
--- a/product/en/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
+++ b/product/en/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
@@ -21,7 +21,7 @@ After installing the database, it is recommended to execute the following shell
 source ~/.bashrc
 
 memory=`free|awk '{print $2}' |sed -n 2p`
-if [[ $memory -lt 4*1024*1024 ]]
+if [[ $memory -le 4*1024*1024 ]]
 then
     max_process_memory=2GB
     shared_buffers=128MB
@@ -29,7 +29,7 @@ then
     work_mem=4MB
     maintenance_work_mem=256MB
     echo "If the database fails to start, lower the parameters max_process_memory and shared_buffers"
-elif [[ $memory -gt 4*1024*1024 ]] && [[ $memory -lt 8*1024*1024 ]]
+elif [[ $memory -gt 4*1024*1024 ]] && [[ $memory -le 8*1024*1024 ]]
 then
     max_process_memory=5GB
     shared_buffers=1GB
@@ -102,7 +102,7 @@ gs_guc set -I all -N all -c "autovacuum_analyze_scale_factor=0.02"
 gs_guc set -I all -N all -c "autovacuum_vacuum_threshold=200"
 gs_guc set -I all -N all -c "autovacuum_analyze_threshold=200"
 gs_guc set -I all -N all -c "autovacuum_io_limits=104857600"
-gs_guc set -I all -N all -c "instr_unique_sql_count=20000"
+gs_guc set -I all -N all -c "instr_unique_sql_count=200000"
 gs_guc set -I all -N all -c "enable_save_datachanged_timestamp=off"
 gs_guc set -I all -N all -c "track_sql_count=off"
 gs_guc set -I all -N all -c "enable_instr_rt_percentile=off"
@@ -114,7 +114,7 @@ gs_guc set -I all -N all -c "enable_nestloop=on"
 gs_guc set -I all -N all -c "enable_pbe_optimization=off"
 gs_guc set -I all -N all -c "enable_resource_track=on"
 gs_guc set -I all -N all -c "enable_wdr_snapshot=on"
-gs_guc set -I all -N all -c "instr_unique_sql_count=5000"
+gs_guc set -I all -N all -c "log_min_duration_statement=200"
 
 ##Client whitelist
 gs_guc set -I all -N all -h "host     all      all  0.0.0.0/0    md5"
diff --git a/product/en/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md b/product/en/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
index 32995336b25b3ecf622f0d6595a9132d61bc85ca..74efcd82d122d6df42e8a9a160b3cbc34f6a7f93 100644
--- a/product/en/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
+++ b/product/en/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
@@ -147,7 +147,7 @@ The first part indicates the tracing level of full SQL statements. The value can
 
 The second part indicates the tracing level of slow SQL statements. The value can be **OFF**, **L0**, **L1**, or **L2**.
 
-> ![img](https://cdn-mogdb.enmotech.com/docs-media/icon/icon-note.gif) **NOTE:** If the full SQL tracing level is not **OFF**, the current SQL tracing level is the higher level (L2 > L1 > L0) of the full SQL and slow SQL statements. For details about the levels, see Table 1 [GUC parameters](30-appendix).
+> ![img](https://cdn-mogdb.enmotech.com/docs-media/icon/icon-note.gif) **NOTE:** If the full SQL tracing level is not **OFF**, the current SQL tracing level is the higher level (L2 > L1 > L0) of the full SQL and slow SQL statements. L1 record sql execute plan and L2 record detail information of lock,Please reference [STATEMENT_HISTORY](STATEMENT_HISTORY).
 
 **Default value**: **OFF,L0**
 
diff --git a/product/zh/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md b/product/zh/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
index b294c2cca347456a8c956e98af9684a98069492a..76eae70c8b521936c1cab46d9a2ada1d1230942c 100644
--- a/product/zh/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
+++ b/product/zh/docs-mogdb/v3.0/installation-guide/standard-installation/7-recommended-parameter-settings.md
@@ -21,7 +21,7 @@ date: 2021-06-24
 source ~/.bashrc
 
 memory=`free|awk '{print $2}' |sed -n 2p`
-if [[ $memory -lt 4*1024*1024 ]]
+if [[ $memory -le 4*1024*1024 ]]
 then
     max_process_memory=2GB
     shared_buffers=128MB
@@ -29,7 +29,7 @@ then
     work_mem=4MB
     maintenance_work_mem=256MB
     echo "If the database fails to start, lower the parameters max_process_memory and shared_buffers"
-elif [[ $memory -gt 4*1024*1024 ]] && [[ $memory -lt 8*1024*1024 ]]
+elif [[ $memory -gt 4*1024*1024 ]] && [[ $memory -le 8*1024*1024 ]]
 then
     max_process_memory=5GB
     shared_buffers=1GB
@@ -102,7 +102,7 @@ gs_guc set -I all -N all -c "autovacuum_analyze_scale_factor=0.02"
 gs_guc set -I all -N all -c "autovacuum_vacuum_threshold=200"
 gs_guc set -I all -N all -c "autovacuum_analyze_threshold=200"
 gs_guc set -I all -N all -c "autovacuum_io_limits=104857600"
-gs_guc set -I all -N all -c "instr_unique_sql_count=20000"
+gs_guc set -I all -N all -c "instr_unique_sql_count=200000"
 gs_guc set -I all -N all -c "enable_save_datachanged_timestamp=off"
 gs_guc set -I all -N all -c "track_sql_count=off"
 gs_guc set -I all -N all -c "enable_instr_rt_percentile=off"
@@ -114,7 +114,7 @@ gs_guc set -I all -N all -c "enable_nestloop=on"
 gs_guc set -I all -N all -c "enable_pbe_optimization=off"
 gs_guc set -I all -N all -c "enable_resource_track=on"
 gs_guc set -I all -N all -c "enable_wdr_snapshot=on"
-gs_guc set -I all -N all -c "instr_unique_sql_count=5000"
+gs_guc set -I all -N all -c "log_min_duration_statement=200"
 
 ##客户端白名单
 gs_guc set -I all -N all -h "host     all      all  0.0.0.0/0    md5"
diff --git a/product/zh/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md b/product/zh/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
index 890f49c0d98d8a809884941ffe3e0933c6035a3e..2591a87721d86cd03140c934ac4f50e1f64d6056 100644
--- a/product/zh/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
+++ b/product/zh/docs-mogdb/v3.0/reference-guide/guc-parameters/26-query.md
@@ -154,7 +154,7 @@ full sql stat level为全量SQL跟踪级别，取值范围为OFF、L0、L1、L2
 
 slow sql stat level为慢SQL的跟踪级别，取值范围为OFF、L0、L1、L2
 
-> ![img](https://cdn-mogdb.enmotech.com/docs-media/icon/icon-note.gif) **说明：** 若全量SQL跟踪级别值为非OFF时，当前SQL跟踪级别值为全量SQL和慢SQL的较高级别（L2 > L1 > L0），级别说明请参见表[GUC参数分类](30-appendix)。
+> ![img](https://cdn-mogdb.enmotech.com/docs-media/icon/icon-note.gif) **说明：** 若全量SQL跟踪级别值为非OFF时，当前SQL跟踪级别值为全量SQL和慢SQL的较高级别（L2 > L1 > L0），L1在L0的基础上记录了执行计划，L2在L1的基础上记录了锁的详细信息，详情请参考[STATEMENT_HISTORY](STATEMENT_HISTORY)。
 
 **默认值**：OFF,L0