Moving Databases from ASM to ZFS on Exadata
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Exadata is the best database machine available to run every Oracle database
workload. But many times, within Exadata proliferate a large number of test
a...
Fast SPLIT PARTITION operation is unusually slow
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I recently observed that the total time taken to split an empty partition,
in 10.2.0.5, has increased by many fold—i.e. from under 30 seconds to 60
minutes...
latency heatmaps in D3 and Highcharts
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See Brendan Gregg’s blog on how important and cool heatmaps can be for
showing latency information and how average latency hides what is really
going on: ...
ADHD and Tech
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I’ve just returned from Data Saturday Oslo and Data Saturday Dallas, and
tomorrow I’m off to Oracle Cloud World. Both
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pgbouncer and slow server pool increase
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This post is about an issue I ran into when trying to use pgbouncer in
front of Yugabyte YSQL, the postgres layer yugabyte reuses for handling
relational d...
Oracle Cloud & Third party tools
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There have been several buzz words and offerings since the invention of
Cloud concepts. We have been hearing of Private Cloud, Public Cloud, Hybrid
cloud a...
The ACE Scorecard
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The newly introduced “Oracle ACE Program Scorecard” felt like I did a
timesheet of my Oracle online footprint for the entire year. Spent most of
the day (a...
Speaking At Oracle CloudWorld
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For the first time in a few years I’ll be speaking at Oracle’s annual
conference! I’m doing a joint session w/ a couple of the good guys from
Oracle (Nages...
PGIO Update
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PGIO is the SLOB method for PostreSQL. An old friend of mine, Bart Sjerps,
has implemented a modified PGIO in Python and posted it on Github:
https://githu...
negative regexp
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if you want to grep anything except foo, use grep -v or negative lookahead
echo -e 'foo\nbar\nboz'|grep -P '^(?!.*foo).*$' bar boz it is just so
beautiful ...
Updating Exadata Database Nodes (2)
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Just a small note that starting Exadata 12.2.1.1.0 dbnodeupdate.zip is no
more available as a separate download. Exadata Database Node updates should
be ap...
OJVM and DBA_REGISTRY_SQLPATCH
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I woke up this morning and did what I do most days - doomscroll through
twitter. One of the benefits of being in the US is that there are usually
some inte...
Sangam 18: Presentations, Scripts and More
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Many, many thanks to those who came to my three sessions at Sangam 18, the
largest meeting of Oracle technologists in South Asia.
As I promised, you can do...
Become a Master of Oracle 12c
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Oracle Database 12c: Administrator Certified Master Technology moves on,
and to keep pace with it, so should you. If you are an Oracle Certified
profession...
Pickleball & Longevity
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Studien zufolge trägt die Trendsportart Pickleball in nahezu idealer Weise
zur Langlebigkeit bei! Wer möchte nicht sein Leben bei guter Gesundheit um
10 Ja...
Exadata Flash Cache WriteBack
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With the announcement Exadata X3, Oracle has introduced a new feature
called “FlashCache Writeback” to allow writes to cell Flash Cache
(aka Exadata Smart ...
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