ORA-00018: maximum number of sessions exceeded
今天客戶一個資料庫檢視alert log日誌時 發現有以下錯誤資訊
Errors in file /ora9i/app/oracle/admin/hyjj/bdump/hyjj_reco_782632.trc:
ORA-00018: maximum number of sessions exceeded
ORA-02063: preceding line from ZD04_WZXTSJ
然後馬上用以下命令查有多少程式和資料庫連線數
ps -ef|grep ora|wc -l
su - oracle
sqlplus "/as sysdba"
查出來的結果為156
show parameter process
NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
aq_tm_processes integer 0
db_writer_processes integer 1
job_queue_processes integer 10
log_archive_max_processes integer 2
processes integer 800
sessions 也為885
沒有超過 所設定最大的引數值啊
還有可以查詢
select sessions_highwater from v$license;
sessions_highwater 記錄的是資料庫會話曾經達到的最大值
最大定在ORA-02063: preceding line from ZD04_WZXTSJ
ZD04_WZXTSJ是連線到遠端資料庫的一個dblink名稱,現在有
可能是遠端資料庫已經超過最大連線數了,
但連不上遠端資料庫,也無法確認。
記錄下解決的過程
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