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Plesk is inaccessible: Can't create/write to file Errcode: 17, query was: DESCRIBE `sessions`

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Nelson Leiva
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Plesk for Linux kb: technical

Applicable to:

  • Plesk for Linux

Symptoms

Plesk is inaccessible

PLESK_INFO: Server Error
500
Plesk\Exception\Database
DB query failed: SQLSTATE[HY000]: General error: 1 Can't create/write to file '/tmp/#sql_434_0.MYD' (Errcode: 17), query was: DESCRIBE `sessions`

Cause

Temporary file cannot be written to because it was not removed from a past session and it's unwritable by the current session

Resolution

  1. Connect to the server via SSH

  2. Restart MySQL server:

    # service mariadb restart | service mysqld restart | service mysql restart

    Note: In case the issue reoccurs, MySQL server parameters like innodb_ buffer_ pool_size will have to be optimized in accordance with the server load.

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