GBase 8a提供了执行计划，以及不同的日志级别，现实整体各个节点耗时，以及每个节点的耗时，来方便用户进行性能排查，本文介绍详细的分析方法。
环境
2节点虚拟机集群
[gbase@rh6-1 ~]$ gcadmin
CLUSTER STATE: ACTIVE
CLUSTER MODE: NORMAL
=================================================================
| GBASE COORDINATOR CLUSTER INFORMATION |
=================================================================
| NodeName | IpAddress |gcware |gcluster |DataState |
-----------------------------------------------------------------
| coordinator1 | 10.0.2.201 | OPEN | OPEN | 0 |
-----------------------------------------------------------------
=============================================================
| GBASE DATA CLUSTER INFORMATION |
=============================================================
|NodeName | IpAddress |gnode |syncserver |DataState |
-------------------------------------------------------------
| node1 | 10.0.2.201 | OPEN | OPEN | 0 |
-------------------------------------------------------------
| node2 | 10.0.2.202 | OPEN | OPEN | 0 |
-------------------------------------------------------------
简单的单列表，50万行
gbase> show create table t1;
+-------+-------------------------------------------------------------------------------------------------------------------+
| Table | Create Table |
+-------+-------------------------------------------------------------------------------------------------------------------+
| t1 | CREATE TABLE "t1" (
"id" int(11) DEFAULT NULL
) ENGINE=EXPRESS DEFAULT CHARSET=utf8 TABLESPACE='sys_tablespace' |
+-------+-------------------------------------------------------------------------------------------------------------------+
1 row in set (Elapsed: 00:00:00.00)
gbase> select count(*) from t1;
+----------+
| count(*) |
+----------+
| 500000 |
+----------+
1 row in set (Elapsed: 00:00:00.06)
打开参数
其中profiling参数是可以直观的查看执行过程每个阶段的整体耗时。重点关注其中的Sending task to gnodes部分耗时。
gcluster_log_level参数7是可以查看到每个节点的具体SQL以及每个节点的耗时。
gbase> set profiling=1;
Query OK, 0 rows affected (Elapsed: 00:00:00.01)
gbase> set gcluster_log_level=7;
Query OK, 0 rows affected (Elapsed: 00:00:00.01)执行计划
可以看到分成了3大部分。第0部分REDIST(id)是根据id列做重分布。第1部分[GATHER]是将各个节点的数据汇总，第2部分[RESULT]是返回结果。
gbase> explain select id,count(*) from t1 group by id order by count(*) desc limit 10;
+----+--------------+-----------+---------+-------------------------------------------------+-----------------+
| ID | MOTION | OPERATION | TABLE | CONDITION | NO STAT Tab/Col |
+----+--------------+-----------+---------+-------------------------------------------------+-----------------+
| 02 | [RESULT] | Step | <01> | | |
| | | ORDER | | ORDER BY cast(SUM_2ND(COUNT(0)) as signed) DESC | |
| | | LIMIT | | LIMIT 10 | |
| 01 | [GATHER] | Step | <00> | | |
| | | GROUP | | GROUP BY id | |
| | | ORDER | | ORDER BY .. DESC | |
| | | LIMIT | | LIMIT 10 | |
| 00 | [REDIST(id)] | Table | t1[DIS] | | t1 |
| | | GROUP | | GROUP BY id | |
+----+--------------+-----------+---------+-------------------------------------------------+-----------------+
9 rows in set (Elapsed: 00:00:00.00)执行SQL
包括profile的输出以及执行计划explain的结果。
gbase> select id,count(*) from t1 group by id order by count(*) desc limit 10;
+-------+----------+
| id | count(*) |
+-------+----------+
| 27347 | 34 |
| 14427 | 32 |
| 27569 | 32 |
| 6983 | 32 |
| 32549 | 32 |
| 10186 | 32 |
| 25857 | 31 |
| 2197 | 31 |
| 23008 | 31 |
| 6582 | 31 |
+-------+----------+
10 rows in set (Elapsed: 00:00:00.77)
gbase> show profile;
+------------------------+----------+
| Status | Duration |
+------------------------+----------+
| parse | 0.000284 |
| init | 0.001421 |
| Preparing metadata | 0.000495 |
| Executing by step | 0.000550 |
| Creating tmp tables | 0.000082 |
| Sending task to gnodes | 0.006993 |
| Sending task to gnodes | 0.666324 |
| Sending task to gnodes | 0.003851 |
| Creating tmp tables | 0.000141 |
| Sending task to gnodes | 0.004463 |
| Sending task to gnodes | 0.068458 |
| Sending task to gnodes | 0.002863 |
| Sending task to gnodes | 0.011147 |
| Clearing tmp tables | 0.000021 |
| Sending task to gnodes | 0.003134 |
| query end | 0.000009 |
| freeing items | 0.000113 |
| cleaning up | 0.000003 |
+------------------------+----------+
18 rows in set (Elapsed: 00:00:00.00)查看日志
查看gcluser/log/gcluster/express.log的对应输出。内部包含了整个执行过程以及每一步在每个节点的耗时情况。
先汇总一下后面详细日志的，方便查看
# 原始SQL
# 执行计划阶段
#0 第0步
##0-0 创建临时表
##0-1-1 创建临时表各个节点的执行时间
##0-2 将数据重分布到临时表
##0-2-1 重分布在各个节点的耗时
##0-3 刷新，因为重分布是底层操作，所以表一级要flush一下。
##0-3-1 刷新在各个节点耗时
#1 第1步
##1-1 在1个节点创建汇总临时表
##1-1-1 创建汇总临时表的耗时，注意只有1个
##1-2 汇总每个节点的结果到汇总表
##1-2-1 汇总耗时
##1-3 刷新汇总表
##1-3-1 刷新汇总表耗时
#2 第2步
##2-1 查询汇总表，得到结果
##2-1-1 查询汇总表耗时
#3 删除临时表，注意不同节点的SQL是不同的
#3-1 删除临时表耗时
原始日志
如下是express.log里面，日志等级为7的部分输出信息，其中[S:18]是对应的connection_id的编号18.
# 原始SQL
2020-11-10 09:54:16.382 [EXEC_P][INFO ][S:18][Q:38]:Original SQL:
select id,count(*) from t1 group by id order by count(*) desc limit 10
2020-11-10 09:54:16.382 [EXEC_P][INFO ][S:18][Q:38]:##############################
2020-11-10 09:54:16.382 [EXEC_P][INFO ][S:18][Q:38]:#### Main Query Begin ####
2020-11-10 09:54:16.382 [EXEC_P][INFO ][S:18][Q:38]:##############################
# 执行计划阶段
2020-11-10 09:54:16.382 [EXEC_P][INFO ][S:18][Q:38]:---Top plan is [0x5149de0]---
2020-11-10 09:54:16.382 [EXECTR][INFO ][S:18][Q:38]:Involved in 1 distribuitons
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:===========Datacopymap Of Distribution 2===========
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:|| n1 | ::ffff:10.0.2.202, ::ffff:10.0.2.201, ||
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:|| n2 | ::ffff:10.0.2.201, ::ffff:10.0.2.202, ||
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:===================================================
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Selected a random coordinator node: 10.0.2.201
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Coordinator node is 10.0.2.201
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:--#--Begin a async API mode--#--
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:A plan Begin ...
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 scalar subquery.
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 from subquery.
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 union subquery.
2020-11-10 09:54:16.383 [EXEC_P][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 3 steps.
#0 第0步
2020-11-10 09:54:16.383 [EXEC_P][INFO ][S:18][Q:38]:## STEP: 0 ...
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 uncorrelated subquery.
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:Distribution Info, /[8a:P2C2]
##0-0 创建临时表
2020-11-10 09:54:16.383 [EXECTR][INFO ][S:18][Q:38]:---Step detail: hash redistribute the table in gbase.
2020-11-10 09:54:16.384 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
2020-11-10 09:54:16.385 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.202:5050->33) , SQL:CREATE TABLE `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n1 AS SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `testdb.t1`.`id` AS `c2`, COUNT(0) AS `c3` FROM `testdb`.`t1_n1` `testdb.t1` GROUP BY `testdb.t1`.`id` LIMIT 0 ; commit.
2020-11-10 09:54:16.385 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:CREATE TABLE `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n2 AS SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `testdb.t1`.`id` AS `c2`, COUNT(0) AS `c3` FROM `testdb`.`t1_n2` `testdb.t1` GROUP BY `testdb.t1`.`id` LIMIT 0 ; commit.
##0-1-1 创建临时表各个节点的执行时间
2020-11-10 09:54:16.393 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.202 | 5050 | 0 s | Finish |
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
2020-11-10 09:54:16.394 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##0-2 将数据重分布到临时表
2020-11-10 09:54:16.397 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.202:5050->33) , SQL:SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `testdb.t1`.`id` AS `c2`, COUNT(0) AS `c3` FROM `testdb`.`t1_n1` `testdb.t1` GROUP BY `testdb.t1`.`id` target into server (HOST '::ffff:10.0.2.202,::ffff:10.0.2.201', PORT 5050, USER 'root', PASSWORD '', DATABASE 'gctmpdb', TABLE '_tmp_rht_3372351498_18_t2_1_1604972970_s_n1,_tmp_rht_3372351498_18_t2_1_1604972970_s_n2', COMMENT 'group 0, distribution 2, hash_map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
2020-11-10 09:54:16.400 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `testdb.t1`.`id` AS `c2`, COUNT(0) AS `c3` FROM `testdb`.`t1_n2` `testdb.t1` GROUP BY `testdb.t1`.`id` target into server (HOST '::ffff:10.0.2.202,::ffff:10.0.2.201', PORT 5050, USER 'root', PASSWORD '', DATABASE 'gctmpdb', TABLE '_tmp_rht_3372351498_18_t2_1_1604972970_s_n1,_tmp_rht_3372351498_18_t2_1_1604972970_s_n2', COMMENT 'group 0, distribution 2, hash_map 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
##0-2-1 重分布在各个节点的耗时
2020-11-10 09:54:17.140 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.201 | 5050 | 1 s | Finish |
| T | ::ffff:10.0.2.202 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
2020-11-10 09:54:17.140 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##0-3 刷新，因为重分布是底层操作，所以表一级要flush一下。
2020-11-10 09:54:17.141 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.202:5050->33) , SQL:flush temporary commit `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n1.
2020-11-10 09:54:17.141 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:flush temporary commit `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n2.
##0-3-1 刷新在各个节点耗时
2020-11-10 09:54:17.144 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.202 | 5050 | 0 s | Finish |
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
#1 第1步
2020-11-10 09:54:17.144 [EXEC_P][INFO ][S:18][Q:38]:## STEP: 1 ...
2020-11-10 09:54:17.144 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 uncorrelated subquery.
2020-11-10 09:54:17.144 [EXECTR][INFO ][S:18][Q:38]:Distribution Info, [Coor:C2]/[8a:P2]
2020-11-10 09:54:17.144 [EXECTR][INFO ][S:18][Q:38]:---Step detail: 8a to cluster, gbase8a is producer and gcluster is consumer, the query result is store in gcluster.
2020-11-10 09:54:17.145 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##1-1 在1个节点创建汇总临时表
2020-11-10 09:54:17.145 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:CREATE TABLE `gctmpdb`._tmp_3372351498_18_t2_2_1604972970_s AS SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c2` AS `c4`, cast(SUM_2ND(`_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c3`) as signed) AS `c5` FROM `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n2 GROUP BY `_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c2` LIMIT 0 ; commit.
##1-1-1 创建汇总临时表的耗时，注意只有1个
2020-11-10 09:54:17.181 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
2020-11-10 09:54:17.181 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##1-2 汇总每个节点的结果到汇总表
2020-11-10 09:54:17.181 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.202:5050->33) , SQL:SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `_tmp_rht_3372351498_18_t2_1_1604972970_s_n1`.`c2` AS `c4`, cast(SUM_2ND(`_tmp_rht_3372351498_18_t2_1_1604972970_s_n1`.`c3`) as signed) AS `c5` FROM `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n1 GROUP BY `_tmp_rht_3372351498_18_t2_1_1604972970_s_n1`.`c2` ORDER BY `c5` DESC LIMIT 10 target into server (HOST '::ffff:10.0.2.201', PORT 5050, USER 'root', PASSWORD '', DATABASE 'gctmpdb', TABLE '_tmp_3372351498_18_t2_2_1604972970_s', COMMENT '' ).
2020-11-10 09:54:17.181 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c2` AS `c4`, cast(SUM_2ND(`_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c3`) as signed) AS `c5` FROM `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n2 GROUP BY `_tmp_rht_3372351498_18_t2_1_1604972970_s_n2`.`c2` ORDER BY `c5` DESC LIMIT 10 target into server (HOST '::ffff:10.0.2.201', PORT 5050, USER 'root', PASSWORD '', DATABASE 'gctmpdb', TABLE '_tmp_3372351498_18_t2_2_1604972970_s', COMMENT '' ).
##1-2-1 汇总耗时
2020-11-10 09:54:17.270 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
| T | ::ffff:10.0.2.202 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
2020-11-10 09:54:17.271 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##1-3 刷新汇总表
2020-11-10 09:54:17.271 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:flush temporary commit `gctmpdb`._tmp_3372351498_18_t2_2_1604972970_s.
##1-3-1 刷新汇总表耗时
2020-11-10 09:54:17.272 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
#2 第2步
2020-11-10 09:54:17.272 [EXEC_P][INFO ][S:18][Q:38]:## STEP: 2 ...
2020-11-10 09:54:17.272 [EXECTR][INFO ][S:18][Q:38]:Current plan [0x5149de0] has 0 uncorrelated subquery.
2020-11-10 09:54:17.272 [EXECTR][INFO ][S:18][Q:38]:Distribution Info, [Coor:P2]
2020-11-10 09:54:17.272 [EXECTR][INFO ][S:18][Q:38]:---Step detail: cluster to client, gcluster is procducer and send the query result to client.
2020-11-10 09:54:17.272 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
##2-1 查询汇总表，得到结果
2020-11-10 09:54:17.273 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->10) , SQL:SELECT /*::ffff:10.0.2.201_18_4_2020-11-10_09:54:16*/ /*+ TID('2621458') */ `_tmp_3372351498_18_t2_2_1604972970_s`.`c4` AS `id`, `_tmp_3372351498_18_t2_2_1604972970_s`.`c5` AS `count(*)` FROM `gctmpdb`._tmp_3372351498_18_t2_2_1604972970_s ORDER BY `count(*)` DESC LIMIT 10.
2020-11-10 09:54:17.274 [EXECTR][INFO ][S:18][Q:38]:Sent Rows: 10
##2-1-1 查询汇总表耗时
2020-11-10 09:54:17.274 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+
2020-11-10 09:54:17.274 [EXECTR][INFO ][S:18][Q:38]:Finish all steps of plan [0x5149de0].
2020-11-10 09:54:17.274 [EXECTR][INFO ][S:18][Q:38]:Passed tasks to async API, good luck!
#3 删除临时表，注意不同节点的SQL是不同的
2020-11-10 09:54:17.276 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.201:5050->24) , SQL:DROP TABLE IF EXISTS `gctmpdb`._tmp_3372351498_18_t2_2_1604972970_s;DROP TABLE IF EXISTS `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n2.
2020-11-10 09:54:17.278 [SQLDISP][INFO ][S:18][Q:38]:Target:HOST(::ffff:10.0.2.202:5050->42) , SQL:DROP TABLE IF EXISTS `gctmpdb`._tmp_rht_3372351498_18_t2_1_1604972970_s_n1.
#3-1 删除临时表耗时
2020-11-10 09:54:17.279 [EXECTR][INFO ][S:18][Q:38]:
-----------------+----Node Performance----+---------------
+-Type-+-------Node------+-Port-+---Elapsed---+--Status--+
| T | ::ffff:10.0.2.202 | 5050 | 0 s | Finish |
| T | ::ffff:10.0.2.201 | 5050 | 0 s | Finish |
+------+-----------------+------+-------------+----------+