ORA-03113: end-of-file on communication channel

ERROR Message:
ERROR at line 1:
ORA-03113: end-of-file on communication channel
Process ID: 12556
Session ID: 96 Serial number: 12509

ERROR:
ORA-03114: not connected to ORACLE
Log file info:

Incident 757262 created, dump file: /u01/app/oracle/database/diag/rdbms/prod/ORCL/incident/incdir_757262/ORCL_ora_12556_i757262.trc
ORA-07445: exception encountered: core dump [evaopn3()+125] [SIGSEGV] [ADDR:0x4] [PC:0x8AA42D1] [Address not mapped to object] []

this is a bug. Manipulate the sql to remove order by or group by or chagne date format might be a work-around.

rman backup cloud moduel for s3 error

error message:
RMAN> BACKUP DEVICE TYPE SBT  AS COMPRESSED BACKUPSET CURRENT CONTROLFILE;
Starting backup at 27-JUL-12
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of backup command at 07/27/2012 11:37:48
ORA-19554: error allocating device, device type: SBT_TAPE, device name:
ORA-27023: skgfqsbi: media manager protocol error
ORA-19511: Error received from media manager layer, error text:
   KBHS-00715: HTTP error occurred 'client-error'
KBHS-00703: unable to connect to HTTP server oracle-sbt-license.s3.amazonaws.com; received ORA-12535
LFI-00108: Open expect the file [ewallet][p12] to exist.

This error was cleared by itself after 3 hours.

I cannot find out the cause.

to find out cloud moduel parameter

strings $ORACLE_HOME/lib/libosbws12.so | grep '^OSB_' | sort

strings $ORACLE_HOME/lib/libosbws12.so | grep '^_OSB_' | sort

reference:
http://www.idevelopment.info/data/AWS/AWS_Tips/Oracle_on_AWS/ORAAWS_15.shtml

ORA-12514: TNS:listener does not currently know of service

issue:
database is tnspingable, but sqlplus will give below error when login:

ORA-12514: TNS:listener does not currently know of service

cause:

database service is not registered to the listener.

solution:

add service to listener and restart it.

listener entry:

in sid_list_listener:

add

(SID_DESC =

(GLOBAL_DBNAME=myfubardb)

(ORACLE_HOME = /ora00/app/oracle/product/10.2.0/db_1)

(SID_NAME = fubar)

)

 

 

reference:

http://edstevensdba.wordpress.com/2011/03/19/ora-12514/

OALL8 is in an Inconsistent State

OALL8 is in an inconsistent state" is thrown when using the 10.2.0.3 JDBC thin driver to select non ascii characters from the database.

reference:
http://asanga-pradeep.blogspot.com/2008/06/oall8-is-in-inconsistent-state-with.html

oracle linux yum repository

wget http://public-yum.oracle.com/public-yum-el5.repo

reference:
https://oracletempspace.wordpress.com/2011/11/01/oracle-linux-public-yum-repository-configuration/

remove file extension in shell script

# name without extension

name=${file%\.*}

reference:
http://www.unix.com/shell-programming-scripting/40360-remove-file-extension.html

logical volume check

/dev/mapper/VolGroup00-LogVol00 is a logical volume managed by LVM

the logical volume is called LogVol00 belonging to volume group VolGroup00

below can be used to check LVM
lvdisplay -- logical volume list
vgdisplay -- volume group list
pvdisplay -- physical volume list

reference:
http://www.linuxquestions.org/questions/linux-newbie-8/what-is-dev-mapper-volgroup00-logvol00-and-what-does-it-stands-for-699073/

set vncserver screen size

ISSUE:

when you start vncviewer, the terminal's last several lins might not be viewable in the screen.

 

Solution:

 

EDIT:

/etc/sysconfig/vncservers

 

ADD :

VNCSERVERS="2:oracle"
 VNCSERVERARGS[2]="-geometry 1280x1024"

ORA-445 backgroup process didnt spawn.

error:
ORA-00445: background process "J000" did not start after 120 seconds

cause:
it should be resource issue.

solution:
check if this happens at peak time.
select * from v$resource_limit; to see if any limit is reached.


reference:
http://www.orafaq.com/forum/t/163934/0/
https://forums.oracle.com/forums/thread.jspa?threadID=2141050

ora-28 session killed message in alert log

issue:
alert log displays error message:
opiodr aborting process unknown ospid (24094) as a result of ORA-28
Mon Jul 16 14:23:59 2012
opiodr aborting process unknown ospid (16788) as a result of ORA-28

explanation:
the ora-28 error is just message notifucation error. it is generated when privilege user kills session.

reference:
http://jzhil2004.blog.163.com/blog/static/2755850420111115293348/

import failed by not null constraint in oracle

Prolblem: when you import data to the same table but with a new nut null constraint, Your import will failed because of the not null constraint.

Solution: remove the constraint. load data. update with default value and add constraint back.

sql:

alter table test modify column tttt datatype null;
update table test set tttt=default value;
alter table test modify column ttt datatype not null default x;


reference:
http://ss64.com/ora/table_a_cols.html

connect failed to debugger on informatica

1. ERROR:
Error connecting to the DTM at [%s : %d]: [%s]
Server execution failed, forcing shutdown of the debugger...
Debugger shutdown complete.

2. CAUSE:
integration service use blocked port to initialize debugger connection back to client.

3. solution;
sepcify port range in integration service custom property
3.1 log into admin console
3.2 select integration service
3.3 click edit on "custom property"
3.4 add
     DebuggerMinPort 6001
     DebuggerMaxPort 6015
3.5 retry debugger, it should be fine.


reference:

https://communities.informatica.com/infakb/solution/6/Pages/21312.aspx