确认当前活动的 session 和正在执行 sql

SELECT SID,SERIAL#,USERNAME,STATUS,OSUSER,MACHINE,PROGRAM,SQL_ID,SQL_EXEC_START,PREV_SQL_ID,PREV_EXEC_START,LOGON_TIME
  FROM v$session 
  WHERE type='USER' 
  ORDER BY STATUS,SQL_ID;

1、通过命令 iotop 查看当前占用 io 高的进程

2、查询对应的 session 和 sql

select * from v$process where spid=17287;
select * from v$session where paddr='000000042A2DEF38';
select * from v$sql where SQL_ID='fzkatnxmx15yc';
alter system kill session '14, 16987';