[Typo3-german] wechselnder mysql_pconnect()-Fehler

[Markus Bucher]

Hallo Liste. Habe vorhin noch ein funktionierendes typo gehabt, jetzt 
spinnts rum.

Nacheinander kommen folgende Fehlermeldungen unregelmäßig abwechselnd:

[Fehler 1]
" Warning: mysql_pconnect(): Link to server lost, unable to reconnect in 
/htdocs/t3lib/class.t3lib_db.php on line 831"

" Database Error
The current username, password or host was not accepted when the connection 
to the database was attempted to be established! "

[Fehler 2]
 Warning: mysql_pconnect(): Can't connect to local MySQL server through 
socket '/var/lib/mysql/mysql.sock' (111) in /htdocs/t3lib/class.t3lib_db.php 
on line 831"

" Database Error
The current username, password or host was not accepted when the connection 
to the database was attempted to be established! "

Zwischendurch war die Seite kurz online.

Jemand eine Idee?

Gruß
Markus