Re: High number of created consistent read blocks when inserting into a LOB column from dblink

From: Jure Bratina <jure.bratina_at_gmail.com>
Date: Thu, 12 Jan 2017 23:45:27 +0100
Message-ID: <CAC08BHJ7w9e9nOV5UbLJXRnqX_boGUrGWvnT-o7Z_ZOuELOvtA_at_mail.gmail.com>



Thanks for the feedback Stefan.

One question though:
> P.S.: For isolating the issue it might be easier to insert only one row
and check the difference.
The problem is that the issue of the INSERT slowing down and becoming more and more CPU intensive manifests gradually. At the beginning, things run smoothly, CPU usage is low, the deltas of "CR blocks created" are relatively low. As the INSERT progresses, CPU usage rises, as do deltas for "CR blocks created" among other statistics. I might be missing the point, but if I try to insert a single row and observe the difference, I'll do that at the beginning of the transaction, i.e. when the process won't be heavily on CPU, so I wonder if I'll see why the process is so heavily on CPU and building consistent read images of blocks?

Regards,
Jure Bratina

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Received on Thu Jan 12 2017 - 23:45:27 CET

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