Home
All Oracle Error Codes
Oracle DBA Forum

Frequent Oracle Errors

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: External Procedures and Linux

Faan DeSwardt

2004-06-25

Replies:
Dick,

Can you confirm that the extproc demo that came with your release is working
correctly? It is located in "$ORACLE_HOME/plsql/demo" and the instructions
for setting this up is in the file 'extproc.sql'. Also have a look at Note#
47484.1 for more detailed demo setup instructions. I know these
instructions are for Oracle 8 but the general steps of setting up the
extproc demo are still applicable.

If the demo works then there is something wrong in your custom extproc code
and if not then there is probably something wrong with your extproc
infrastructure setup e.g. listener.ora, tnsnames.ora, etc. Check out the
suggestions in Note# 70638.1 for common issues with the infrastructure if
this is where things are failing.

I also suggest that you compile your custom extproc programs with the
following command 'make -f demo_rdbms.mk {extproc_callback |
extproc_nocallback} SHARED_LIBNAME=myextproc_name.so OBJS=myextproc_name.o'
from where your extproc source file i.e. 'myextproc_name.c' is located
versus your own homegrown syntax as this is more version proof and makes
sure that you get all the directives and libraries correct.

Are you using Oracle Names? If so then make sure that the extproc does not
get resolved via onames but only by the local tnsnames.ora.

Also important to note that when dealing with extproc connections on the
same host as where the DB is located that there is a big difference between
connecting with 'USERID/PWD' and 'USERID/PWD@(protected)
that in the first case the current shell 'TNS_ADMIN' env variable is used to
resolve the extproc connect string where in the latter the 'TNS_ADMIN' value
that was in effect when the DB started up is used. This can really mess you
around when troubleshooting these little rascals.

Also make sure you don't later run into the 'ORA-28595' with 9i (especially
when migrating extproc programs from 8) where you now have to specify the
'EXTPROC_DLLS' directive to allow access to external programs located
elsewhere than "$ORACLE_HOME/bin". Check Note# 198523.1 for more details.

Good Luck!
Faan
----- Original Message -----
From: "Goulet, Dick" <DGoulet@(protected)>
To: <oracle-l@(protected)>
Sent: Friday, June 25, 2004 9:47 AM
Subject: RE: External Procedures and Linux


> Steve,
>
> Sorry that did not work. Actually looks like the database engine is =
> not trying to make contact with the external procedure listener. If you =
> run "lsnrctl serv" the external sid shows 0 attempts and 0 rejects. =
> Real strange.
>
> Dick Goulet
> Senior Oracle DBA
> Oracle Certified 8i DBA
>
> -----Original Message-----
> From: Orr, Steve [mailto:sorr@(protected)]
> Sent: Friday, June 25, 2004 12:13 PM
> To: oracle-l@(protected)
> Subject: RE: External Procedures and Linux
>
>
> Looks good... The only difference is that in the listener.ora we have
> the full path for the PROGRAM parameter, e. g.=3D20
>
> PROGRAM =3D3D /u01/app/oracle/product/9.2/bin/extproc=3D20
>
> I wouldn't think it would make a difference so barking up the wrong tree
> and probably an HPUX to Linux compile issue. You may need to set some
> obtuse compiler flag or more likely there's a not too obvious library
> dependency. For example, according to our C guru dweeb, we often need to
> include libpthread even if we're not doing threads. Sounds like a C bit
> twiddling exercise is in the making.=3D20
>
>
>
> -----Original Message-----
> From: oracle-l-bounce@(protected)
> [mailto:oracle-l-bounce@(protected)
> Sent: Friday, June 25, 2004 9:19 AM
> To: oracle-l@(protected)
> Subject: RE: External Procedures and Linux
>
>
> Steve,
>
> TNSNAMES:
>
> EXTPROC_CONNECTION_DATA.WORLD =3D3D3D
> (DESCRIPTION =3D3D3D
>   (ADDRESS =3D3D3D(PROTOCOL =3D3D3D IPC)(KEY =3D3D3D extkey))
>   (CONNECT_DATA =3D3D3D (SID =3D3D3D 12))
> )
>
> Listener:
>
> LISTENER =3D3D3D
>  (DESCRIPTION_LIST =3D3D3D
>   (DESCRIPTION =3D3D3D
>     (ADDRESS =3D3D3D (PROTOCOL =3D3D3D IPC)(KEY =3D3D3D 02))
>   )
>   (DESCRIPTION =3D3D3D
>     (ADDRESS=3D3D3D(PROTOCOL =3D3D3D IPC)(KEY =3D3D3D extkey))
>   )
>   (DESCRIPTION =3D3D3D
>     (ADDRESS =3D3D3D (PROTOCOL =3D3D3D TCP)(HOST =3D3D3D pelton)(PORT =
> =3D3D3D =3D
> 1521))
>   )
>  )
>
> SID_LIST_LISTENER =3D3D3D
>  (SID_LIST =3D3D3D
>   (SID_DESC =3D3D3D
>     (SDU =3D3D3D 4096)
>     (TDU =3D3D3D 4096)
>     (GLOBAL_DBNAME =3D3D3D pelton2.world)
>     (SID_NAME =3D3D3D 02)
>     (ORACLE_HOME =3D3D3D /ora1/oracle/ora92)
>     (PRESPAWN_MAX =3D3D3D 10)
>   )
>   (SID_DESC=3D3D3D
>   (SID_NAME =3D3D3D 12)
> (ORACLE_HOME =3D3D3D /ora1/oracle/ora92)
> (PROGRAM =3D3D3D extproc)
>   )
>  )
>
> Dick Goulet
> Senior Oracle DBA
> Oracle Certified 8i DBA
>
> -----Original Message-----
> From: Orr, Steve [mailto:sorr@(protected)]
> Sent: Friday, June 25, 2004 10:27 AM
> To: oracle-l@(protected)
> Subject: RE: External Procedures and Linux
>
>
> We had an external C program running on O 8.1.7 / RH 7.2 but now we're
> on O 9.2 / AS 3.0 and we're not using it any more. I recall there were
> problems getting it working. Can you post the salient entries in your
> tnsnames.ora and listener.ora so I can compare them?=3D3D3D20
>
>
>
> -----Original Message-----
> From: oracle-l-bounce@(protected)
> [mailto:oracle-l-bounce@(protected)
> Sent: Friday, June 25, 2004 8:17 AM
> To: Oracle DBA List (E-mail)
> Subject: External Procedures and Linux
>
>
> Is there anyone running Oracle 9.2.0.4 on Red Hat AS 3.0 and using =3D
> =3D3D3D3D
> external procedure calls? I'm having one heck of a time with it & am =
> =3D
> =3D3D
> =3D3D3D =3D3D3D3D sure I messed something simple up. I use them a lot =
> on =3D
> HP-UX,
> but I =3D3D =3D3D3D3D just can't get Linux running, always end up with:
>
> select oracheck_functions.ext_proc_up from dual
>     *
> ERROR at line 1:
> ORA-28575: unable to open RPC connection to external procedure agent
> ORA-06512: at "SYSTEM.ORACHECK_FUNCTIONS", line 23
> ORA-06512: at line 1
>
> Looks like a listener or tnsnames config problem, but those are =
> =3D3D3D3D
> identical to what I use on HP. Any ideas??
>
> Dick Goulet
> Senior Oracle DBA
> Oracle Certified 8i DBA
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@(protected)
> 'unsubscribe' in the subject line.
> --
> Archives are at http://www.freelists.org/archives/oracle-l/
> FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------
>
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@(protected)
> 'unsubscribe' in the subject line.
> --
> Archives are at http://www.freelists.org/archives/oracle-l/
> FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@(protected)
> 'unsubscribe' in the subject line.
> --
> Archives are at http://www.freelists.org/archives/oracle-l/
> FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------
>
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@(protected)
> put 'unsubscribe' in the subject line.
> --
> Archives are at http://www.freelists.org/archives/oracle-l/
> FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------
> ----------------------------------------------------------------
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> ----------------------------------------------------------------
> To unsubscribe send email to: oracle-l-request@(protected)
> put 'unsubscribe' in the subject line.
> --
> Archives are at http://www.freelists.org/archives/oracle-l/
> FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
> -----------------------------------------------------------------

----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to: oracle-l-request@(protected)
put 'unsubscribe' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------