SHOW PROCESSLIST
功能描述
查当前外部连接(或内部线程)相关信息。
注意事项
- Id字段对应pg_stat_activity视图中的sessionid
- Info字段记录的是该连接最后一次执行的SQL,这和B数据库有一些差异(B数据库显示当前执行中的SQL),但可以结合State字段查看SQL是否是在执行中,State字段为active时,对应Info字段的SQL则在执行中。
语法格式
SHOW [FULL] PROCESSLIST
参数说明
FULL
不使用FULL选项,Info字段只展示SQL长度不超过100的部分。 使用FULL选项,Info字段可完全展示长度不超过1024的SQL语句,如果SQL长度超过1024,会截断1024长度之外的部分。
示例
--方式1
openGauss=# show processlist;
Id | Pid | QueryId | UniqueSqlId | User | Host | db | Command |
BackendStart | XactStart | Time | State | Info
-----------------+-----------------+-------------------+-------------+-----------+------+----------+------------------------+---
----------------------------+-------------------------------+--------+--------+----------------------------------------
139653370304256 | 139653370304256 | 0 | 0 | opengauss | | postgres | ApplyLauncher | 20
22-06-21 16:46:19.656076+08 | | | |
139653319255808 | 139653319255808 | 0 | 0 | opengauss | | postgres | Asp | 20
22-06-21 16:46:19.728521+08 | | 1 | active |
139653336483584 | 139653336483584 | 0 | 0 | opengauss | | postgres | PercentileJob | 20
22-06-21 16:46:19.728527+08 | | 8 | active |
139653302175488 | 139653302175488 | 0 | 0 | opengauss | | postgres | statement flush thread | 20
22-06-21 16:46:19.728558+08 | | 508507 | idle |
139653198239488 | 139653198239488 | 0 | 0 | opengauss | | postgres | WorkloadMonitor | 20
22-06-21 16:46:19.750133+08 | | | |
139653181298432 | 139653181298432 | 0 | 0 | opengauss | | postgres | WLMArbiter | 20
22-06-21 16:46:19.750976+08 | | | |
139653215110912 | 139653215110912 | 0 | 0 | opengauss | | postgres | workload | 20
22-06-21 16:46:19.754504+08 | 2022-06-21 16:46:19.769585+08 | 508507 | active | WLM fetch collect info from data nodes
139653421840128 | 139653421840128 | 0 | 0 | opengauss | | postgres | JobScheduler | 20
22-06-27 10:00:54.754007+08 | | 0 | active |
139653044328192 | 139653044328192 | 48976645947655327 | 1772643515 | opengauss | -1 | dolphin | gsql | 20
22-06-27 14:00:53.163338+08 | 2022-06-27 14:01:26.794658+08 | 0 | active | show processlist;
139653027546880 | 139653027546880 | 48976645947655326 | 1775585557 | opengauss | -1 | postgres | gsql | 20
22-06-27 14:01:03.969962+08 | 2022-06-27 14:01:19.967521+08 | 7 | active | select pg_sleep(100);
(10 rows)
--方式2
openGauss=# show full processlist;
Id | Pid | QueryId | UniqueSqlId | User | Host | db | Command |
BackendStart | XactStart | Time | State | Info
-----------------+-----------------+-------------------+-------------+-----------+------+----------+------------------------+---
----------------------------+-------------------------------+--------+--------+----------------------------------------
139653370304256 | 139653370304256 | 0 | 0 | opengauss | | postgres | ApplyLauncher | 20
22-06-21 16:46:19.656076+08 | | | |
139653319255808 | 139653319255808 | 0 | 0 | opengauss | | postgres | Asp | 20
22-06-21 16:46:19.728521+08 | | 1 | active |
139653336483584 | 139653336483584 | 0 | 0 | opengauss | | postgres | PercentileJob | 20
22-06-21 16:46:19.728527+08 | | 8 | active |
139653302175488 | 139653302175488 | 0 | 0 | opengauss | | postgres | statement flush thread | 20
22-06-21 16:46:19.728558+08 | | 508507 | idle |
139653198239488 | 139653198239488 | 0 | 0 | opengauss | | postgres | WorkloadMonitor | 20
22-06-21 16:46:19.750133+08 | | | |
139653181298432 | 139653181298432 | 0 | 0 | opengauss | | postgres | WLMArbiter | 20
22-06-21 16:46:19.750976+08 | | | |
139653215110912 | 139653215110912 | 0 | 0 | opengauss | | postgres | workload | 20
22-06-21 16:46:19.754504+08 | 2022-06-21 16:46:19.769585+08 | 508507 | active | WLM fetch collect info from data nodes
139653421840128 | 139653421840128 | 0 | 0 | opengauss | | postgres | JobScheduler | 20
22-06-27 10:00:54.754007+08 | | 0 | active |
139653044328192 | 139653044328192 | 48976645947655327 | 1772643515 | opengauss | -1 | dolphin | gsql | 20
22-06-27 14:00:53.163338+08 | 2022-06-27 14:01:26.794658+08 | 0 | active | show processlist;
139653027546880 | 139653027546880 | 48976645947655326 | 1775585557 | opengauss | -1 | postgres | gsql | 20
22-06-27 14:01:03.969962+08 | 2022-06-27 14:01:19.967521+08 | 7 | active | select pg_sleep(100);
(10 rows)
相关链接
N/A
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