SRDC

SRDC - ORA-1562: Checklist of Evidence to Supply (Doc ID 1682728.1)

Action Plan

1.  Execute srdc_db_undo_ora-1562.sql as sysdba and provide the spool output. 以sysdba 的身份执行

--srdc_db_undo_ora-1562.sql

REM srdc_db_undo_ora-1562.sql
REM collect Undo parameters and segment details for troubleshooting ORA-1562 issues.
define SRDCNAME='DB_Undo_ORA-1562'
set pagesize 200 verify off sqlprompt "" term off entmap off echo off
set markup html on spool on
COLUMN SRDCSPOOLNAME NOPRINT NEW_VALUE SRDCSPOOLNAME
select 'SRDC_'||upper('&&SRDCNAME')||'_'||upper(instance_name)||'_'|| to_char(sysdate,'YYYYMMDD_HH24MISS') SRDCSPOOLNAME from v$instance;
spool &&SRDCSPOOLNAME..htm
select 'Diagnostic-Name ' "Diagnostic-Name ", '&&SRDCNAME' "Report Info" from dual
union all
select 'Time ' , to_char(systimestamp, 'YYYY-MM-DD HH24MISS TZHTZM' ) from dual
union all
select 'Machine ' , host_name from v$instance
union all
select 'Version ',version from v$instance
union all
select 'DBName ',name from v$database
union all
select 'Instance ',instance_name from v$instance
/
set echo on

--***********************Undo Parameters**********************

SELECT a.ksppinm "Parameter",
b.ksppstvl "Session Value",
c.ksppstvl "Instance Value"
FROM sys.x$ksppi a, sys.x$ksppcv b, sys.x$ksppsv c
WHERE a.indx = b.indx
AND a.indx = c.indx
AND a.ksppinm in ( '_undo_autotune' , '_smu_debug_mode' ,
'_highthreshold_undoretention' ,
'undo_tablespace' , 'undo_retention' , 'undo_management' )
order by 2
/
--**********************Tuned Undo Retention**********************
Select max(maxquerylen),max(tuned_undoretention) from v$undostat
/
--**********************Status of the undo blocks**********************

select tablespace_name, 
round(sum(case when status = 'UNEXPIRED' then bytes else 0 end) / 1048675,2) unexp_MB ,
round(sum(case when status = 'EXPIRED' then bytes else 0 end) / 1048576,2) exp_MB ,
round(sum(case when status = 'ACTIVE' then bytes else 0 end) / 1048576,2) act_MB 
from dba_undo_extents group by tablespace_name
/
--**********************Free space available within the Undo tablespace**********************

SELECT SUM(BYTES) FROM DBA_FREE_SPACE WHERE TABLESPACE_NAME in (select value from v$parameter where name= 'undo_tablespace')
/
select max(bytes) from dba_free_space where tablespace_name in (select value from v$parameter where name= 'undo_tablespace')
/
SELECT file_name,autoextensible FROM dba_data_files WHERE tablespace_name in (select value from v$parameter where name= 'undo_tablespace' )
/
set echo off 
set sqlprompt "SQL> " term on 
set verify on 
spool off
set markup html off spool off 
set echo on

2.  Check the Undo Configuration recommendation using script srdc_undo_recommendation_10g.sql (version 10g onwards), or srdc_undo_recommendation_9i.sql (till version 9i). Collect the output file.

脚本参考文章  https://www.cnblogs.com/zylong-sys/p/11962079.html

3. Collect the complete Alert.log from the previous successful startup.

4. Attach all of the above evidence to the Service Request at SR creation time. The evidence can all be placed into a single ZIP or similar compressed archive or can be attached as separate files.