Hi, I'm having a trouble that sometimes a request took 3 to 5 seconds on approximately every 39 minutes.
I turned on the slow log and found out that cache_open_read_end is the most time consuming. status: 200 unique id: redirection_tries: 0 bytes: 43 fd: 0 client state: 0 server state: 9 ua_begin: 0.000 ua_first_read: 0.000 ua_read_header_done: 0.000 cache_open_read_begin: 0.000 cache_open_read_end: 2.536 dns_lookup_begin: 2.536 dns_lookup_end: 2.536 server_connect: 2.537 server_first_read: 2.589 server_read_header_done: 2.589 server_close: 2.589 ua_close: 2.589 sm_finish: 2.589 plugin_active: 0.000 plugin_total: 0.000 Could you give me advice to know the reason why cache_open_read_end took so long and fix the slow responses? Thanks, Hiroaki
