4 hours is passed. The web-based service is okay with "wait_timeout=8hours" and "max_allowed_packet=100MB". I am planning to execute aging test for 3 days at least. BTW, Can we check inactivity time (e.g., wait_timeout) that MariaDB waits before it will be close a connection with "mytop" command like the below content? u164.04$ mytop -u root -p*** [enter] MySQL on localhost (10.0.29) load 0.24 0.26 0.27 1/563 18515 up 0+23:47:16 [15:22:38] Queries: 5.2k qps: 0 Slow: 0.0 Se/In/Up/De(%): 07/00/00/00 Sorts: 0 qps now: 1 Slow qps: 0.0 Threads: 3 ( 1/ 1) 00/00/00/00 Key Efficiency: 100.0% Bps in/out: 1.7/233.2 Now in/out: 21.3/ 2.9k Id User Host/IP DB Time Cmd State Query -- ---- ------- -- ---- --- ----- ---------- 781 root localhost api_develo 28048 Sleep 751 tic localhost:56454 pdk 4406 Sleep 1084 root localhost 0 Query init show full processlist BRs, Geunsik Lim.