Hi
I guess i should code something like start i.e. 50 (configurable parameter
to
increase the load) threads and issues queries non stop over jdbc to i.e. 2
database test tables - we should generate enough trasactions to take all
pool
connections. And I should probably use jdbc connections as defin
Hello
I guess you are suggesting to compile this class with the changes you
propose
and test it?
regards, marko
On Thu, Nov 21, 2013 at 1:58 AM, David Bullock <
david.bull...@machaira.com.au> wrote:
> Oh, and 'throw e;' at the end of the handler :-)
> David Bullock
> Machaira Enterprises Pty L
Oh, and 'throw e;' at the end of the handler :-)
David Bullock
Machaira Enterprises Pty Ltd
PO Box 31
Canowindra NSW 2804
02 6344 1100
http://machaira.com.au/
On 21 November 2013 11:48, David Bullock wrote:
> Line 150 of org.apache.tomcat.jdbc.pool.FairBlockingQueue can throw
> InterruptedExce
Line 150 of org.apache.tomcat.jdbc.pool.FairBlockingQueue can throw
InterruptedException, which should be handled by:
catch (InterruptedException e) {
lock.lock();
waiters.remove(c); // prevent future threads from offering to this
thread, since we are about to die
lock.unlock();
if (c.
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Marko,
On 11/20/13, 12:07 PM, marko lugarič wrote:
> I have repeated the test with logAbandoned set to "true" and left
> it half hour after pool is empty. There are a lot of exceptions
> (Pool empty. Unable to fetch a connection in 15 seconds and Po
Hello
I have repeated the test with logAbandoned set to "true" and left it half
hour
after pool is empty. There are a lot of exceptions (Pool empty. Unable to
fetch a connection in 15 seconds and Pool wait interrupted) but i don't
know what
exactly to search (search with Abandoned did not produce
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Marko,
On 11/20/13, 8:14 AM, marko lugarič wrote:
> Hello
>
> The tests are run in the following manner: around 5 min to start
> the server and connect all clients. Then I can apply load from
> clients: on the graph I applied only half load for fir
Hello
The tests are run in the following manner: around 5 min to start the server
and connect all clients. Then I can apply load from clients: on the graph
I applied only half load for first seven minutes an then full load but this
is
not required - I can go with full load after all clients connec
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Marko,
On 11/19/13, 10:16 AM, marko lugarič wrote:
> About using useEquals="false" property I guess we defined when we
> started using this pool. After reading the documentation i guess it
> is better to leave it out (it has no effect on the test -
Marko wrote:
> In that case debugging looks like the only option?
Nobody yet disputed:
> The 'leakiness' of the pool is actually in
> org.apache.tomcat.jdbc.pool.FairBlockingQueue#poll()
> If the line (!c.await(timeout, unit)) exits via an
> InterruptedException, the the 'exchangecountdownlatc
Hello
About using useEquals="false" property I guess we defined when we started
using this pool. After reading the documentation i guess it is better to
leave it
out (it has no effect on the test - i tested it).
We dont have long running queries because there is not much data and all
operations a
On 19 November 2013 14:59, Caldarale, Charles R
wrote:
>> From: David Bullock [mailto:david.bull...@machaira.com.au]
>> Subject: Re: Tomcat connection pool "bleeding" under heavy load
>
>> In PooledConnection#borrow(int,String,String) when handling
>> Inte
> From: David Bullock [mailto:david.bull...@machaira.com.au]
> Subject: Re: Tomcat connection pool "bleeding" under heavy load
> In PooledConnection#borrow(int,String,String) when handling
> InterruptedException, the code there does:
>Thread.interrupted();//cle
In PooledConnection#borrow(int,String,String) when handling
InterruptedException, the code there does:
Thread.interrupted();//clear the flag, and bail out
but if the comment is correct, then the code is wrong (should
be Thread.isInterrupted()). However, the entire line is probably
not necessa
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Marko,
On 11/18/13, 3:48 AM, marko lugarič wrote:
> We have received an issue from our customer that after some time in
> production they get empty connection pool. After some time we
> managed to reproduce their problem in our test environment wit
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