Processes参数设置过小导致错误
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Processes参数设置过小导致错误

如果初始化参数processes设置过小,新的连接请求将无法接入,而一些backgroup process也将出现错误,比如新的job queue process将无法创建。

alertSID.log中可以发现类似下面的错误记录:

Thu Jul 05 19:58:37 2007
Process J000 died, see its trace file
Thu Jul 05 19:58:37 2007
kkjcre1p: unable to spawn jobq slave process
Thu Jul 05 19:58:37 2007
Errors in file g:\database\admin\XXX\bdump\xxx_cjq0_2336.trc:

Thu Jul 05 20:00:56 2007
Process m001 died, see its trace file
Thu Jul 05 20:00:56 2007
ksvcreate: Process(m001) creation failed

我在Oracle10.2.0.3的测试中,发现如果当前系统中的process数目已经达到初始化参数processes-1以后,新的sqlplus连接将报告连接到空闲实例:

E:\>sqlplus /nolog

SQL*Plus: Release 10.2.0.3.0 – Production on Fri Jul 6 09:53:48 2007

Copyright (c) 1982, 2006, Oracle. All Rights Reserved.

@>conn / as sysdba
Connected to an idle instance.

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