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strace the current Oracle session process

Here is my way to trace system calls from the current session process.
This must not be done in production.
An strace.log file will be generated with system calls

connect / as sysdba
column spid new_value pid
select spid from v$process join v$session on v$session.paddr=v$process.addr where sid=sys_context('userenv','sid');
column spid clear
define bg=&:
host strace -fy -p &pid -o strace.log &bg
select * from v$osstat;
disconnect

Originally posted on Twitter, but improved here

https://twitter.com/FranckPachot/status/969898128030695424

Twitter : Is it a valuable community contribution?

During a conversation with Zahid Anwar at OOW15, the question was asked, is Twitter content a valuable contribution to the community?

The following is *my opinion* on the matter. Other opinions are valid.

The sort of tweets I see fall into the following basic categories:

Friday Philosophy – Antisocial Social Media and Sociopaths

Twice, on consecutive days a week or so back, I realised that someone I knew on Twitter but did not know in real life… was someone I knew in real life. But I’d never made the connection! With one person it was not that their real name was missing from their twitter profile, it was just my brain had linked all I knew about them to their handle. In the other case, as far as I can see there is nothing to link their slightly obscure handle to their physical persona, despite the fact they are tweeting quite often about Oracle and also present at conferences. So that was simply not playing fair to hide their real identity in that way and I feel slightly aggrieved.

Friday Philosophy – OK, so I am on Twitter Now

Not a very exciting Friday Philosophy this week I’m afraid, just a self-publicising announcement that I am now on Twitter. I’ve put the wordpress widget on the blog for a while (days or weeks, I don’t know), my twitter name is MDWidlake. {I was a little surprised mwidlake had gone already but that says more about how rare I consider my surname to be than naivety, I hope}. It seems you can click on a part of the widget to follow me, which is a pretty safe thing to do as I am not very verbal as yet.

As I said, I’m not very active at the moment, I’m more following just a few friends and seeing what people use Twitter for. So far it mostly seems to be about:

Friday Philosophy – Should I Be a Twit?

Something I have been pondering for a while now is should I join in with the “happening crowd” and sign up to Twitter? I know, I’m two or three years behind the times on this, but more and more people who I like have signed up – even Doug Burns now uses twitter and he used to be negative about it in the same way as I. I’ve asked a few of these friends what they think.