Process W000 died, see its trace file
問題現象:資料庫遠端無法連線,本地連線同樣報錯:ORA-12547: TNS:lost contact
臨時解決辦法:重啟監聽,資料庫連線恢復正常
檢視alert log日誌發現如下錯誤:
Wed May 06 12:27:37 2015
Process W000 died, see its trace file
Wed May 06 12:29:29 2015
Process W000 died, see its trace file
Wed May 06 12:29:29 2015
網上查詢,推測是process設定不合理導致,檢視process使用情況,發現並未達到上限
SQL> select * from V$RESOURCE_LIMIT;
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
------------------------------ ------------------- --------------- ---------------------------------------- -
processes 222 816 1000 1000
RESOURCE_NAME CURRENT_UTILIZATION MAX_UTILIZATION INITIAL_ALLOCATION LIMIT_VALUE
------------------------------ ------------------- --------------- ---------------------------------------- -
processes 222 816 1000 1000
檢視系統記憶體使用情況,並無異常
[oracle@db1 trace]$ free -m
total used free shared buffers cached
Mem: 32200 31609 590 0 216 27234
-/+ buffers/cache: 4159 28041
Swap: 15999 149 15850
total used free shared buffers cached
Mem: 32200 31609 590 0 216 27234
-/+ buffers/cache: 4159 28041
Swap: 15999 149 15850
資料庫採用自動記憶體管理,同樣未發現異常
SQL> show parameter memory
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
hi_shared_memory_address integer 0
memory_max_target big integer 14592M
memory_target big integer 14592M
shared_memory_address integer 0
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
hi_shared_memory_address integer 0
memory_max_target big integer 14592M
memory_target big integer 14592M
shared_memory_address integer 0
最後感覺可能還是因為process值設定的過小,調整到1200並繼續觀察
來自 “ ITPUB部落格 ” ,連結:http://blog.itpub.net/28719055/viewspace-1625768/,如需轉載,請註明出處,否則將追究法律責任。
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