Database connection failed: error('unpack requires a buffer of 4 bytes').
bkysela opened this issue · comments
When connecting using mycli I see the following on the console.
$ mycli
Connecting to socket /var/run/mysqld/mysqlx.sock, owned by user mysql
unpack requires a buffer of 4 bytes
$
Running with DEBUG, this is in the log.
2024-01-17 12:16:16,402 (2797336/MainThread) mycli.sqlexecute DEBUG - Connection DB Params:
database: 'xxxxxxx' user: 'xxxxxxxx' host: xxxxx port: xxxxx socket: '/var/run/mysqld/mysqlx.sock' charset: 'utf8' local_infile: False ssl: None ssh_user: None ssh_host: None ssh_port: 22 ssh_password: None ssh_key_filename: None init_command: None
2024-01-17 12:16:16,402 (2797336/MainThread) mycli.main DEBUG - Database connection failed: error('unpack requires a buffer of 4 bytes').
2024-01-17 12:16:16,402 (2797336/MainThread) mycli.main ERROR - traceback: 'Traceback (most recent call last):\n File "/usr/lib/python3/dist-packages/mycli/main.py", line 482, in connect\n _connect()\n File "/usr/lib/python3/dist-packages/mycli/main.py", line 456, in _connect\n self.sqlexecute = SQLExecute(\n File "/usr/lib/python3/dist-packages/mycli/sqlexecute.py", line 119, in __init__\n self.connect()\n File "/usr/lib/python3/dist-packages/mycli/sqlexecute.py", line 177, in connect\n conn = pymysql.connect(\n File "/usr/lib/python3/dist-packages/pymysql/connections.py", line 353, in __init__\n self.connect()\n File "/usr/lib/python3/dist-packages/pymysql/connections.py", line 632, in connect\n self._get_server_information()\n File "/usr/lib/python3/dist-packages/pymysql/connections.py", line 1065, in _get_server_information\n self.server_thread_id = struct.unpack("<I", data[i : i + 4])\nstruct.error: unpack requires a buffer of 4 bytes\n'
$ mycli --version
Version: 1.27.0
$ mysqld --version
/usr/sbin/mysqld Ver 8.0.35-0ubuntu0.22.04.1 for Linux on x86_64 ((Ubuntu))
The regular MySQL client connects without issue.
same problem on same OS verion
Any update?
I had same issue with ubuntu 24.04, mysql 8.0.36, and mycli 1.27.0