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TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
PL/SQL compilation error
internal error
missing expression
table or view does not exist
end-of-file on communication channel
TNS:listener unknown in connect descriptor
insufficient privileges
PL/SQL: numeric or value error string
TNS:protocol adapter error
ORACLE not available
target host or object does not exist
invalid number
unable to allocate string bytes of shared memory
resource busy and acquire with NOWAIT specified
error occurred at recursive SQL level string
ORACLE initialization or shutdown in progress
archiver error. Connect internal only, until freed
snapshot too old
unable to extend temp segment by string in tablespace
Credential retrieval failed
missing or invalid option
invalid username/password; logon denied
unable to create INITIAL extent for segment
out of process memory when trying to allocate string bytes
shared memory realm does not exist
cannot insert NULL
TNS:unable to connect to destination
remote database not found ora-02019
exception encountered: core dump
inconsistent datatypes
no data found
TNS:operation timed out
PL/SQL: could not find program
existing state of packages has been discarded
maximum number of processes exceeded
error signaled in parallel query server
ORACLE instance terminated. Disconnection forced
TNS:packet writer failure
see ORA-12699
missing right parenthesis
name is already used by an existing object
cannot identify/lock data file
invalid file operation
quoted string not properly terminated

Re: oradebug dump processstate 10

Egor Starostin

2005-06-09

Replies:
> I have a function called GET_UTL_DIR and currently it is locked in the da=
tabase. When I try to re-compile it I get the following error:
> ORA-04021: timeout occurred while waiting to lock object GET_UTL_DIR
>=20
> I have verified in v$lock but no user is locking.
Such locks (when someone is executing function and you are trying to
recompile it) are not displayed in v$lock.
> Therefore, I have used oradebug command to get more info:
I'd say that 'oradebug dump processstate 10'' is some kind of overkill
in such situation.
You can easily find locker (not only for your case but for every
locking situation) issuing either "oradebug hanganalyze 2" or just=20
"alter session set events 'immediate trace name hanganalyze level
2';". You will quickly get easily readable and small trace file with
tree(s) of blockers/waiters.

Read Metalink Note:215858.1 (Interpreting HANGANALYZE trace files to
diagnose hanging and performance problems) for further info about
hanganalyze event.

--=20
Egor
http://www.oracledba.ru/orasrp/
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