RAC with RHEL4 and 11g
http://startoracle.com/2007/09/30/so-you-want-to-play-with-oracle-11gs-rac-heres-how/
longtx.sql
Find long running transaction that are running for more than 5 minutes with transaction id. col machine format a30 col sid format 99999 col Transaction_id format a20 col username format a10 col days format 99.99 col minutes format 999999 set lines 120 pages 200 select a.sid, a.username, a.machine, round((sysdate – to_date(b.start_time, ‘MM/DD/YY HH24:MI:SS’)) * 1440)…
V$transaction notes for finding XID composition.
Notes on v$transaction The information here contains the view description from the Oracle9i documentation Earlier versions of Oracle may not include all columns. The v$transaction view lists the active transactions in the system. Column Datatype Description ————- ————– ————————————– ADDR RAW(4) Address of transaction state object XIDUSN NUMBER Undo segment number XIDSLOT NUMBER Slot number…
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telnet listening
if you are trying following $ telnet remote-server port and you are getting error, this means no one is listening on that port on remote server. Start the listening application ( like listener ) & then do telnet. it will work if firewall is not blocking it.
Find total file sizes
sunflower1/800L>./vrm3 | awk ‘{tot+=$5} END {print “TOTAL ” tot/1024}’ TOTAL 52662552 sunflower1/800L>cat vrm3 ls -rlt /EMCdb21/oradata/800P/800P_misc_index31.dbf ls -rlt /EMCdb21/oradata/800P/800P_emp_data23.dbf ls -rlt /EMCdb21/oradata/800P/800P_emp_index55.dbf ls -rlt /EMCdb21/oradata/800P/ORD_SCRPAD_INDEX_06.dbf ls -rlt /EMCdb21/oradata/800P/800P_emp_index56.dbf ls -rlt /EMCdb21/oradata/800P/800P_misc_data_3_04.dbf ls -rlt /EMCdb21/oradata/800P/800P_SAS_DATA_1.dbf ls -rlt /EMCdb24/oradata/800P/800P_ord_index42.dbf ls -rlt /EMCdb24/oradata/800P/800P_misc_index32.dbf ls -rlt /EMCdb24/oradata/800P/800P_phone_index22.dbf ls -rlt /EMCdb24/oradata/800P/800P_atlas_index57.dbf ls -rlt /EMCdb14/oradata/800P/800P_atlas_data34.dbf ls -rlt /EMCdb14/oradata/800P/800P_emp_index57.dbf ls -rlt /EMCdb14/oradata/800P/800P_ord_data29.dbf…
Clean up
* re-format /dev/sdb /dev/sdc once * drop crs home * drop oraInventory * set the time on both boxes
UTL_FILE test program
Declare v_filehandle UTL_FILE.FILE_TYPE; file_dir VARCHAR2(50) :=’/db3/oracle/utlfiles’; begin t_file_name :=’Vatti_test.dat’; v_filehandle := UTL_FILE.FOPEN(file_dir, t_file_name, ‘w’); UTL_FILE.PUT_LINE(v_filehandle, ‘Hello TEST’); UTL_FILE.FCLOSE(v_filehandle); exception when others then dbms_output.put_line(sqlcode || ‘ ‘ || sqlerrm); end; /
V$CONTROLFILE_RECORD_SECTION reference notes.
TYPE VARCHAR2(17) Identifies the type of record section: DATABASE, CKPT PROGRESS, REDO THREAD, REDO LOG, DATAFILE, FILENAME, TABLESPACE, LOG HISTORY, OFFLINE RANGE, ARCHIVED LOG, BACKUP SET, BACKUP PIECE, BACKUP DATAFILE, BACKUP REDOLOG, DATAFILE COPY, BACKUP CORRUPTION, COPY CORRUPTION, DELETED OBJECT, or PROXY COPY RECORD_SIZE NUMBER Record size in bytes RECORDS_TOTAL NUMBER Number of records allocated…
metalink all dynamic view reference notes.
V$ View Definitions Library Doc ID: Note:220021.1
how to find VIP from ifconfig
As u see in front of VIP, “:1” will be there. sunlight1/800P>ifconfig -a lo0: flags=2001000849 mtu 8232 index 1 inet 127.0.0.1 netmask ff000000 hme0: flags=1000843 mtu 1500 index 2 inet 192.168.9.36 netmask ffffff00 broadcast 192.168.9.255 hme0:1: flags=1000843 mtu 1500 index 2 inet 192.168.9.10 netmask ffffff00 broadcast 192.168.9.255 hme1: flags=1000843 mtu 1500 index 3 inet 192.168.9.38…