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DB°¡ hang-up µÉ¶§...
Âü°í Çϼ¼¿ä~ ¿À¶óŬ ÀÚ·á ÀÔ´Ï´Ù.
1. ÇöÀç »óÅ¿¡ ´ëÇÑ Dump file¸¦ ¸¸µç´Ù. ( 30ÃÊ °£°ÝÀ¸·Î 2-3ȸ ½Ç½Ã)
alter session set events ¡®immediate trace name systemstate level 10¡¯;
2. Network ¹®Á¦Àΰ¡ È®ÀÎÇÑ´Ù.
Lsnrctl status/services
sqlplus scott/tiger@serviceÈÄ query ¼öÇà
telnet, netstat -nµîÀ¸·Î network check
3. Archive log mode ÀÎ °æ¿ì Free space°¡ Àִ°¡ È®ÀÎ.
Redo log size°¡ ÀûÀº °æ¿ì I/O ¹®Á¦·Î ÀÎÇØ ¹ß»ý °¡´É
4. OS ÀÚü¹®Á¦Àΰ¡ ºÐ¼®
OS operation È®ÀÎ
Swap size¹× Memory
CPU busy
I/O¹ß»ý È®ÀÎ
5. Wait ÁßÀÎ sessionÀÇ È®ÀÎ
select l.* from v$session s, v$lock l where s.lockwait = l.kaddr;
6. Defunct sessionÀº ¾ø´Â°¡ È®ÀÎ
7. Latch contesionÀΰ¡ È®ÀÎ
select h.pid, l.name from v$latchholder h, v$latch l, v$process p
where p.latchwait = l.addr and p.latchwait = h.laddr
8. SGA³» Shared_poolÀÌ ¹®Á¦Àΰ¡
9. ActiveÇÑ »ç¿ëÀÚ°¡ ¸¹Áö ¾ÊÀº°¡.
Select * from v$session where status = ¡®ACTIVE¡¯;
10. ST Lock ¹®Á¦Àΰ¡.
Ora-1575
´ëºÎºÐ °ú´ÙÇÑ Disk sort·Î ÀÎÇØ ¹ß»ý.
Sort_area_sizeÁõ°¡
forward coalescing¾ïÁ¦
event = ¡°10268 trace name context forever, level 10¡±
Rollback segmentÀÇ ÀæÀº Extent¿¡µµ ¹ß»ý
event = ¡°10061 trace name context forever, level 10¡±
event = ¡°10269 trace name context forever, level 10¡±
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