trace_enabled 是否产生trace日志--按情况来关闭

最新推荐文章于 2024-07-20 16:11:26 发布

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最新推荐文章于 2024-07-20 16:11:26 发布

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文章标签：数据库

本文详细介绍了Oracle数据库中TRACE_ENABLED参数的功能、默认值、修改方式、适用范围及使用建议，强调了此参数在系统问题排查和故障诊断中的重要性。

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TRACE_ENABLED

Property	Description
Parameter type	Boolean
Default value	`true`
Modifiable	`ALTER SYSTEM`
Range of values	`true \| false`
Real Application Clusters	The default value is `TRUE`. Oracle recommends that multiple instances have the same value.

TRACE_ENABLED controls tracing of the execution history, or code path, of Oracle. Oracle Support Services uses this information for debugging.

When TRACE_ENABLED is set to true, Oracle records information in specific files when errors occur.

Oracle records this information for all instances, even if only one instance terminates. This allows Oracle to retain diagnostics for an entire cluster.

Although the overhead incurred from this processing is not excessive, you can improve performance by setting TRACE_ENABLED to false. You might do this, for example, to meet high-end benchmark requirements. However, if you leave this parameter set to false, you may lose valuable diagnostic information. Therefore, always set TRACE_ENABLED to true to trace system problems and to reduce diagnostic efforts in the event of unexplained instance failures.

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转载于:http://blog.itpub.net/21302630/viewspace-1744274/