問題描述：
執行命令db2stop force無響應。返回SQL6036N
原因可以數據庫大量sql運行，無法結束，導致數據庫hung，連庫依然報SQL6036N START 或 STOP DATABASE MANAGER 命令已在處理之中。
解決辦法：
刪除sqllib/ctrl/db2strst.lck文件，默認這個文件是空的。
執行db2_kill，會提示：Application ipclean:Removing DB2 engine and client IPC resources for db2name.
重新啟動DB2:
db2start
查看數據庫的活動狀態：
db2 list active databases 會顯示當前活動庫，這時候說明數據庫已經恢復正常了。
備注：謹慎使用db2stop force以及db2_kill命令。
db2top排查db2當前運行session情況，確認哪些sql。
http://www-01.ibm.com/support/docview.wss?uid=swg21427711
Unable to start or stop db2 - DB2 is hung
Technote (troubleshooting)
Problem(Abstract)
SQL6036N: START or STOP DATABASE MANAGER command is already in progress.
Symptom
DB2 will not start or stop.
Cause
DB2 is hung.
Diagnosing the problem
SQL6036N maybe seen when issuing db2stop or db2start, or the command may hang.
Resolving the problem
In some cases, db2 will appear to be hung and will not respond to db2stop or db2start. The db2 commands will give the following message:
SQL6036N: START or STOP DATABASE MANAGER command is already in progress.
To force the db2 to shut down, open a db2 client command line window and issue:
db2_kill
Note: restarting the database or recycling the system may also resolve the issue.
Product Alias/Synonym
[rim@nxkhdb1 ~]$ db2 connect to rimdb
SQL6036N START or STOP DATABASE MANAGER command is already in progress.
[rim@nxkhdb1 sqllib]$ cd sqllib/crtl
[rim@nxkhdb1 ctrl]$ db2 list active databases
SQL6036N START or STOP DATABASE MANAGER command is already in progress.
[rim@nxkhdb1 ctrl]$ cp db2strst.lck db2strst.lck.bak
[rim@nxkhdb1 ctrl]$ rm db2strst.lck
[rim@nxkhdb1 ctrl]$ db2_kill
ipclean: Removing DB2 engine and client's IPC resources for rim.
[rim@nxkhdb1 ctrl]$ db2start
05/11/2020 10:05:52 0 0 SQL1063N DB2START processing was successful.
SQL1063N DB2START processing was successful.
[rim@nxkhdb1 ctrl]$ db2 list active databases
SQL1611W No data was returned by Database System Monitor.
[rim@nxkhdb1 ctrl]$ db2 connect to rimdb
Database Connection Information
Database server = DB2/LINUXX8664 9.7.11
SQL authorization ID = RIM
Local database alias = RIMDB
[rim@nxkhdb1 ctrl]$ db2 list tablespaces show detail|grep State
[rim@nxkhdb1 ctrl]$ db2 list application
Auth Id Application Appl. Application Id DB # of
Name Handle Name Agents
-------- -------------- ---------- -------------------------------------------------------------- -------- -----
RIM db2bp 8 *LOCAL.rim.200511020624 RIMDB 1
RIM db2bp 79 *LOCAL.rim.200511020752 RIMDB 1
