V$SESSION with no osuser and no username

Hi all,

I'm using Sun Solaris 7 with Sun Clustering cluster 2.2 I have 4 strange users connected in this machine Oracle 8.1.6.0.0 (Dedicated)

Characteristic of unknown users (from v$session) :
- 4 of them connected without USERNAME, OSUSER, PROGRAM, TERMINAL, MACHINE
(they are NULLl)
- Logon_time keep changing to the current time,

• user# = 0 (SYS according to dba_users)
• status = active
• type = user
• Last_call_et values are the same for four of them (20)

Can someone explain who are those users

Thanks

Sinardy

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