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My export bombs because of snapshot too old, rollback segment too small. As a result, I created a big rollback segment and I want to only assign it for my export. How can I accomplish that?
goodhealth
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The only way I know of is to take all the other rbs offline and then start the export.
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Will taking other rollback segments offline during the day cause any potential disruption to the database , since I guess it has to flush current rollback segment data to this big one?
goodhealth
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It can cause problems if there are users logged on and transactions are being processed.
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There are known reasons for ORA 1555 on export. Check Metalink for related docs.
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