Impossible to login Plesk. The following error appears in browser:
502 bad gateway ERROR: PleskFatalException: Unable to connect to database: mysql_connect(): Too many connections (auth.php:149)
Plesk debug log
/usr/local/psa/admin/logs/panel.log contains the following error::
touch failed: No space left on device
/tmp partition is exceeded.
/tmppartition has at least 4Gb free disk space for Plesk services:
# df -h /tmp Filesystem Size Used Avail Use% Mounted on /dev/sda2 12G 3.0G 8.2G 27% /
- Add free space to partition in case if it is exceeded.