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原帖由 bestManing 于 2008-5-14 06:07 发表 ![]()
在oracle 9.2.0.4 RAC环境中,出现了,两个奇怪的现象,记得以前有高手说过,是一个bug引起的现在自己遇到但已经找不到那片文章了。
请在座的各位高手指导,先行谢过。
现象描述如下:
1.分别连到两个实例,做相同的查询,在A、B两个实例返回的结果集不同,一个是另外一个的子集;
2.由于做的是按天的分区表,查询条件相同时(除过查询的时间段不同之外,其余条件相同),只要时间段包含当天的分区时速度非常慢,但只要整表查询,速度就会非常快。
请高手列出可能的原因。多谢!
For 1:
Can you show us a simple screen dump (text, not image)? How reproducible is it? In 9i, if max_commit_propagation_delay is not set to 0, DMLs just committed in one instance may not be immediately committed in another instance. (Wait time can be as long as 7 seconds.)
For 2:
We need your SQLs to see what you mean exactly. Please create a test case.
Lastly, why didn't you upgrade to later releases of 9i?
Yong Huang |
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