ORA-03113 end of file on communication channel 2004-03-30 - By Mladen Gogala
Back
Well, as you know, "the end of communication rope" happens when the server
process
dies. There should be an accompanying error in the alert.log file. Usually,
those
errors are ORA-7445 (See http://ORA-7445.ora-code.com) and ORA-600 (See http://ORA-600.ora-code.com), which give people much craved opportunity to
use
metalink. ORA-7445 (See http://ORA-7445.ora-code.com) means that there was an exception in the server process. The
only
case when it can legitimately happen, without laying the blame on Pete Sharman,
is
when the address space is not large enough. Typically, OS will let users to have
process sizes of about 2GB, and will terminate anything that exceeds the
boundary.
OS parameter for that purpose defines the maximum size of page tables per
segment or
per process. You can suspect the VM size if the address at which the problem
occurs
is extremely large. If, on the other hand, the address is very small, <= 4k,
then
the program tried to access the page 0, which has deliberately been marked "no
access",
in order to catch the attempts of dereferencing the NULL pointer. If the
address is
close to 0, oracle tried to use NULL pointer, and that is Pete's fault. ORA-600 (See http://ORA-600.ora-code.com)
is
his fault, too.
On 03/30/2004 03:33:06 PM, david wendelken wrote:
> Forgot to add this bit of info:
>
> Have also gotten this error in very secure environments, where the network
times out access to oracle sessions on remote machines fairly quickly. In that
case, it legitimately is an end of communcation channel.
>
>
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
> 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
> -- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
>
--
Mladen Gogala
Oracle DBA
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
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
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- --
|
|
