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TNS:could not resolve the connect identifier specified
Backtrace message unwound by exceptions
invalid identifier
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internal error
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end-of-file on communication channel
TNS:listener unknown in connect descriptor
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ORACLE not available
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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: relation shared pool elements phys mem

Feighery Raymond

2004-08-06

Replies:
Jeroen

The large pool is an optional memory structure used for Shared Server (MTS),
RMAN and PQ operations. It has to be big enough to hold everything it may
need as it has no LRU list.

You should try to discover what sessions are running out of memory and why.
(Metalink ID:1070975.6 may help).

Your SGA should definitely fit into your physical RAM, although Oracle will
still run (slowly) even if it doesn't.

You could also post: Version, platform, Physical RAM, SGA size and whether
you use MTS.

Ray
-----Original Message-----
From: Jeroen van Sluisdam [mailto:jeroen.van.sluisdam@(protected)]
Sent: Friday, August 06, 2004 10:30 AM
To: 'oracle-l@(protected)'
Subject: relation shared pool elements phys mem


Hi,

I have an undersized development box where my main problem is the memory

I regularly get
ERROR:
ORA-04031: unable to allocate 48 bytes of shared memory ("large
pool","unknown
object","session heap","UGA heap pool")
I have a shortage of phys memory. I remember that the complete SGA should
fit into
1 memory segment. Is this correct and does this imply also this should be in
phys memory also?
I have a swapfile that is not used extensively.

If I downsize my sga, should i decrease the size of the memory segments as
well to profit from the
decrease ?

Regards,

Jeroen



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