Mysql error.log menunjukkan
[Warning] Aborted connection 320935 to db: '...' user: '...' host: '...' (Got an error reading communication packets)
Sementara pihak klien mendapatkan:
Lost connection to MySQL server at 'reading initial communication packet', system error: 111
Lost connection to MySQL server at 'reading authorization packet', system error: 0
and after a while: Host '...' is blocked because of many connection errors; unblock with 'mysqladmin flush-hosts'
Saya membaca manual mysql tentang ini, dan banyak utas lainnya. Jadi saya mengubah beberapa nilai di my.cnf
max_allowed_packet = 512M
connect_timeout = 60
net_read_timeout = 120
innodb_buffer_pool_size = 5G
Melihat log permintaan koneksi yang terputus:
22400 Connect user@host on dbname
22400 Query SELECT @@sql_mode
22400 Query SET SESSION sql_mode=''
22400 Query SET NAMES utf8
22400 Init DB dbname
22400 Init DB dbname
Memeriksa status tabel. bind-address adalah IP server tetapi saya harus dapat terhubung dari luar.
Aborted_connects is 196