oracle池式連接請求超時問題排查步驟

 

 

1、

--1、根據數據庫、進程獲取當前oracle數據庫連接session，注意username
 
select *from v$session where username='NGSOFT' and program='w3wp.exe' ORDER BY PREV_exec_start
 
--2、打印當前連接數，查看當前連接池是否超出，oracle連接池可設置1000，注意username
 
select count(*)from v$session where username='NGSOFT' and program='w3wp.exe' ORDER BY PREV_exec_start
 
--3、根據sql_id獲取sql語句
 
select * from v$sql where sql_id='gj82qu4h997uj'

 

2、

--查詢數據庫當前進程的連接數：
select count(*) from v$process;
--查看數據庫當前會話的連接數：
select count(*) from v$session;
--查看數據庫的並發連接數：
select count(*) from v$session where status='ACTIVE';
--查詢數據庫允許的最大連接數：
select value from v$parameter where name = 'processes';
--修改數據庫允許的最大連接數：
alter system set processes = 300 scope = spfile;
--查看當前有哪些用戶正在使用數據：
select osuser,a.username,cpu_time/executions/1000000||'s',sql_fulltext,machine
　　from v$session a,v$sqlarea b
　　where a.sql_address = b.address
　　order by cpu_time/executions desc;
 
--查詢數據庫當前進程的連接數：host_process_id--w3wp
select count(*),host_process_id from sys.dm_exec_sessions group by host_process_id
 
 
select 'dbcc inputbuffer(' +cast(session_id as varchar) +')',session_id,last_request_start_time,login_time,last_request_end_time
 from sys.dm_exec_sessions where host_process_id='1360' order by last_request_start_time asc
 
 select * from sys.dm_exec_sessions where host_process_id='5800'
dbcc inputbuffer(51)

參考鏈接：https://blog.csdn.net/tiancxz/article/details/106688749?utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.baidujs&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7EBlogCommendFromMachineLearnPai2%7Edefault-1.baidujs