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From Pid...@pidster.com>
Subject Re: [OT obviously] Re: Some Prilim questions
Date Fri, 26 Sep 2008 14:18:05 GMT
Martin Gainty wrote:
> In other words if you have an opportunity to attack someone instead of providing an intelligent
> solution then yes by all means CHANGE the question (so you'll look good and the other
guy looks like an idiot..) from a JDBC DataSource lookup to LDAP question..

I did provide the correct answers, or rather, repeat them.

> if the question is a comparison of a local  lookup vs remote lookups you will need a
J2EE server and understand Remote architectures (which TC is not) and you will need to know
how to setup and reference the remote object 

This may be true, but it *wasn't* the question. Local/Remote isn't
mentioned in the question anywhere.

> so I disgress back to the question which is if I have a DB server in NY and I have a
TC container running in India
> how do I acquire the fastest response for a DB Connection for my client ? 

Just for my own amusement, here is the original question in full:

>>>>> starts here >>>>>

1) Which is faster JNDI Based Connection pool / ordinary JDBC based
connection / close ?

2) In JNDI / context based  Connection pool  for the code given below

  InitialContext ic = new InitialContext();
  DataSource ODS
=(javax.sql.DataSource)ic.lookup("java:comp/env/jdbc/MYSCEMA");
  Connection conn = ODS.getConnection()

  // Insert /Update /Delete/...
  conn.close() --> What does this code do ? (return connection to pool
or close the connection )

  Googled /yahooed but non correct answers ....

<<<<< ends here <<<<<

Prizes for anyone who can spot the references to India or Ithaca within.

I think the real question is this: what is the result of this
calculation: ( any large prime number ) divided by zero?

The point I was so laboriously making, is that it's easy to post
irrelevant nonsense scraped from the depths of the internet.  But it's
not helpful, so please stop it.



p





> I can think of 2 options which I will discuss offline with the client
> allowing chris and his/her political attack machine to continue ..

P.S. Ummm, didn't you write "Dumbkopf!" ?

> in the meanwhile  Microsoft continues to convert TC installations to .NET..

WTF are you on about now?  No, don't answer. /Please/.

> Martin 
> ______________________________________________ 
> Disclaimer and confidentiality note 
> Everything in this e-mail and any attachments relates to the official business of Sender.
This transmission is of a confidential nature and Sender does not endorse distribution to
any party other than intended recipient. Sender does not necessarily endorse content contained
within this transmission. 
> 
> 
>> Date: Fri, 26 Sep 2008 09:18:28 +0100
>> From: p@pidster.com
>> To: users@tomcat.apache.org
>> Subject: [OT obviously] Re: Some Prilim questions
>>
>> Martin Gainty wrote:
>>> no no no..
>>> he was NOT talking about LDAP but a DB connection
>>> the statement stands
>>> even with a 'local TC reference' you STILL have to contact the server !
>>> there exists a company which sells server services for this very reason (if the
op desires to know i will pass this on)
>>> dont you have something/anything thats more constructive with your time 
>>> Dumbkopf!
>> (May I Chris?  Thank you in advance.)
>>
>>
>> So, Martin, (can I call you Al? I prefer Al - like the song), I'm
>> interested to know how you'll respond to this query.
>>
>>
>> I've carefully re-read this thread from the beginning to the point where
>> you responded with the following:
>>
>> "the referenced jndi lookup in the webapp context is located in India
>> and the DB is in Ithaca NY the Indian JNDI lookup is considerably slower
>> than 'ordinary JDBC connection' from NY"
>>
>> ... and I'm wondering whether you had some off list conversation with
>> karthikn (the OP).  Because I can't really see any way you could deduce
>> that the DB is in Ithaca. Or in fact that the JNDI context is in India.
>> (Well, apart from the distinct possibility that the OP is in the Indian
>> subcontinent.)
>>
>> Al, your answer is utterly irrelevant - the correct answers being:
>>
>>  1. A JNDI connection pool is measurably faster
>>  2. Return the connection to the pool in most cases, subject to
>>     the implementation of the driver.
>>
>>  - so I am puzzling over the word Ithaca. I suspect that it's a riddle,
>> but I'm not making a great deal of progress, Al.  Can you help?
>>
>> Ithaca, I know - as I studied the classics for a while, is the home of
>> Odysseus.  Is this a Homerian reference I wondered?
>>
>> And yet, Al, you mention NY.
>> And India!
>>
>> So I searched Google... Of course!
>>
>> The only result that mentions Ithaca NY and India in its title is:
>> "Bikram's Yoga College of India - Ithaca, NY, 14850 - Citysearch"
>>
>> And there we have it, Al - you're a genius! 14850!
>> But what is the meaning of 14850?!
>>
>> Is it www.14850.com?  Public Communications, Inc's website!
>> We're on a public mailing list, this must be it!  But no... wait...
>>
>> There's another possibility, ISO:14850! What's this?
>>
>> "ISO 14850:2004 describes a procedure for measurements of gamma-emitting
>> radionuclide activity in homogeneous objects such as unconditioned waste
>> (including process waste, dismantling waste, etc.), waste conditioned in
>> various matrices (bitumen, hydraulic binder, thermosetting resins,
>> etc.), notably in the form of 100 L, 200 L, 400 L or 800 L drums, and
>> test specimens or samples, (vitrified waste), and waste packaged in a
>> container, notably technological waste. It also specifies the
>> calibration of the gamma spectrometry chain. The gamma energies used
>> generally range from 0,05 MeV to 3 MeV."
>>
>>
>> Al, I'm disturbed by this.  India *is* a nuclear power, and this *is* a
>> public standard, but I think we're moving into dangerous territory here.
>>
>> What are you getting at I wondered?  Is there a deeper message regarding
>> nuclear power for OP to take back to his people?
>>
>> A little more googling led me to Tarapur, where there's a nuclear waste
>> disposal and storage facility that, yes!, uses *vitrification*.
>>
>> (I paused here, as I was thirsty and the second bottle was now empty.)
>>
>> Tarapur, Al, Tarapur.  What are you trying to tell us, I mused.
>>
>> Wikipedia has 5 references for places called Tarapur, in these states
>> Maharashtra - the nuke plant, Gujarat & Bihar - otherwise unremarkable.
>>
>> Madhya Pradesh - is one of the best known centres for very unusual and
>> attractive bandanas!  Could this be it!?
>>
>> Karthik, Chris, David, I nearly shouted out loud!  *BANDANAS*
>> It was so obvious to me now, I was amazed that I hadn't seen it straight
>> away!
>>
>> But then Al, I idly flicked the back button, to check the last link...
>> Tarapur, Orissa.  Three stupas (edicts), put up by Emperor Asoka, have
>> been discovered at Tarapur recently.
>>
>>
>>
>> I was stunned Al.
>>
>>
>>
>> * Ashoka the Great *
>> It crystallised in my mind quickly as the breadth of your vision appeared.
>>
>> ** Ashoka the Great **
>> "He who regards everyone amiably"
>>
>> I knew Al, from my classical studies, that Ashoka The Great was a Hindu
>> by birth but later converted to Buddhism after the battle of Kalinga.
>>
>> He subsequently declared in his edicts:
>> “There is no country, except among the Greeks, where these two groups,
>> Brahmans and ascetics, are not found, and there is no country where
>> people are not devoted to one or another religion."
>>
>> The GREEKS! ITHACA!
>> This reference confirmed I had arrived in the right place!
>>
>>
>> Your message is revealed Al, as a message of peace and understanding,
>> for Ashoka is famous for his message of freedom, tolerance, and equality.
>>
>>
>> I was worn out from my exertions, but gloriously sated as I collapsed
>> into a drunken stupor.
>>
>>
>> Peace, Al, Peace.
>>
>>
>> pid
>>
>>
>>
>> * or Alice, I don't mind, Al.
>>
>>
>>
>>
>>
>>
>>
>>> Martin 
>>> ______________________________________________ 
>>> Disclaimer and confidentiality note 
>>> Everything in this e-mail and any attachments relates to the official business
of Sender. This transmission is of a confidential nature and Sender does not endorse distribution
to any party other than intended recipient. Sender does not necessarily endorse content contained
within this transmission. 
>>>
>>>
>>>> Date: Thu, 25 Sep 2008 18:35:05 -0400
>>>> From: chris@christopherschultz.net
>>>> To: users@tomcat.apache.org
>>>> Subject: Re: Some Prilim questions
>>>>
>>> David,
>>>
>>> David Smith wrote:
>>>>>> I have no idea where you are going with this ... it makes no sense
to
>>>>>> the original question.
>>> Aah... there's your problem. Martin's not good with these things.
>>>
>>> On the other hand, /one/ part of his statement does make sense:
>>>
>>>>>> Martin Gainty wrote:
>>>>>>> the referenced jndi lookup in the webapp context is located in
>>>>>>> India and the DB is in Ithaca NY the Indian JNDI lookup is
>>>>>>> considerably slower than 'ordinary JDBC connection' from NY
>>> This is true: if your LDAP server is geographically far from your app
>>> server, then the lookup of your JNDI object could take a long time. What
>>> Martin doesn't realize is that Tomcat always stores JNDI-based
>>> DataSource objects locally, so this situation will never happen.
>>> Martin's statement is a red herring: true, but irrelevant.
>>>
>>> -chris
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> 
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