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 Originally Posted by pjcwik
I'm just getting back to the Oracle world, been a SQL DBA for the last 16 years, so be gentle.
We have MVs that get refreshed nightly from Oracle On Demand data. Within the last week the refreshes have gone from 3 hours to 20 hours. We don't see a massive increase in data, there are no errors in the logs and pings are returning in a reasonable amount of time <200ms. The only thing we see is the following message in Enterprise Manager:
Metrics "Database Time Spent Waiting (%)" is at 47.91113 for event class "Network"
As the pings look to return fast enough, I'm not sure where to go with this message.
Any suggestions would be appreciated.
200ms is an awfully high latency on the network.
Have your tracedroute to check where is the bottleneck? how many hops? is the network pipe based on public internet?
Could you please do a tnsping?... you want to see tnsping returning a value under 10ms.
Pablo (Paul) Berzukov
Author of Understanding Database Administration available at amazon and other bookstores.
Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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