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Oracle 11g Streams Implementer's Guide by Eric Yen, Ann L. R. McKinnell

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Troubleshooting unexpected changes and resulting Streams errors

Expect the unexpected. Whether the failure occurs after the Streams environment has been up and running or occurs while you are attempting to implement the environment, your best defense is knowing the failure points in a Streamed environment, and the most likely causes for the failures. In this section, we will address this very thing, as well as present a methodical approach to troubleshooting errors. We will also discuss various COTS and custom tools that you may find helpful in monitoring and troubleshooting the environment.

Failure Points and Most Likely Causes (a.k.a. FPs and MLCs)

The following diagram shows the overall flow of DML/DDL change through the Streams processes from ...

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