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oracle池式连接请求超时问题排查步骤

泠之屋 06-24 09:10 阅读 4

oracle池式连接请求超时问题排查步骤_连接数

 

 

1、

--1、根据数据库、进程获取当前oracle数据库连接session,注意username

select *from v$session where username='NGSOFT' and program='w3wp.exe' ORDER BY PREV_exec_start

--2、打印当前连接数,查看当前连接池是否超出,oracle连接池可设置1000,注意username

select count(*)from v$session where username='NGSOFT' and program='w3wp.exe' ORDER BY PREV_exec_start

--3、根据sql_id获取sql语句

select * from v$sql where sql_id='gj82qu4h997uj'

 

2、

--查询数据库当前进程的连接数:
select count(*) from v$process;
--查看数据库当前会话的连接数:
select count(*) from v$session;
--查看数据库的并发连接数:
select count(*) from v$session where status='ACTIVE';
--查询数据库允许的最大连接数:
select value from v$parameter where name = 'processes';
--修改数据库允许的最大连接数:
alter system set processes = 300 scope = spfile;
--查看当前有哪些用户正在使用数据:
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;

--查询数据库当前进程的连接数: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)


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