Daniel,
On 12/1/23 00:09, Daniel Andres Pelaez Lopez wrote:
Christopher,
So... when a connection is established, save the current timestamp on
the connection. When it closes, take the delta of the
start-of-connection and end-of-connection, and add it to a bounded queue
(say, 100? 1000?) of mos
Christopher,
So... when a connection is established, save the current timestamp on
> the connection. When it closes, take the delta of the
> start-of-connection and end-of-connection, and add it to a bounded queue
> (say, 100? 1000?) of most-recent-connection-lifetimes. Any time you
> request the
Daniel,
On 11/30/23 07:08, Daniel Andres Pelaez Lopez wrote:
What kind of number are you looking for?
I would say something like the time a connection has been open.
Can you please give the JMX path to tomcat_connections_keepalive_current
and tomcat_connections_current? I have no idea what y
> What kind of number are you looking for?
I would say something like the time a connection has been open.
> Can you please give the JMX path to tomcat_connections_keepalive_current
> and tomcat_connections_current? I have no idea what you are talking
> about there... is there some tool that prov
Daniel,
On 11/28/23 15:23, Daniel Andres Pelaez Lopez wrote:
Hi community,
We have a heavy workload where the client uses a lot of keep-alive
connections, and we want to measure how many keep-alive connections
are open, but we cannot find metrics (MBean) with that information.
The closest one i
On 03/07/2019 15:52, Sanford Liu wrote:
> Hi Mark,
>
> I have updated the Tomcat's version to 9.0.21(Docker image tag is
> tomcat:9.0.21-jdk8. Sorry for my word 'official', it is actually built by
> Docker).
> The Tomcat Native's version is 1.2.21. It is built from
> the tomcat-native.tar.gz, whic
Hi Mark,
I have updated the Tomcat's version to 9.0.21(Docker image tag is
tomcat:9.0.21-jdk8. Sorry for my word 'official', it is actually built by
Docker).
The Tomcat Native's version is 1.2.21. It is built from
the tomcat-native.tar.gz, which is provided in the tomcat 9.0.21
distribution.
I ha
On 03/07/2019 10:59, Sanford Liu wrote:
> Hi Team,
> My team are facing a no responding issue in the below circumstances:
>
> 1. Env:
> ApacheTomcat:8.5.15, JDK: 1.8.0_121
That Tomcat version is more than 2 years old.
> 2. Tomcat configuration:
> enable APR: protocol="org.apache.coyote.http11.
Ok. We do lock all our calls to Basic.sendBinary(), also it seems like
moving to Tomcat 8.5 fixes the issue. No proof yet why. Since it always
happens on our last write out to a client which should trigger a client
ack, the client will immediately send an ack back to us (which seems to
trigger the
On 29/03/17 04:04, Robert Lewis wrote:
> Thanks Mark. I will take a look at the test you linked in (seems like Clint
> already is).
>
> I have a question regarding your previous note "The short version is that
> it is possible that there are two threads". On 8.0.38, doWrite() sets it's
> scoped ha
Thanks Mark. I will take a look at the test you linked in (seems like Clint
already is).
I have a question regarding your previous note "The short version is that
it is possible that there are two threads". On 8.0.38, doWrite() sets it's
scoped handler and buffers to the class level instance, then
rch 28, 2017 3:47 PM
To: Tomcat Users List
Subject: Re: Tracking down a Basic.sendBinary() issue
On 28/03/17 00:30, Robert Lewis wrote:
> Hi,
>
> I am tracking down a fairly sporadic bug in our software that uses
> Tomcat 8.0.38. Long story short, sometimes calls to Basic.sendBinary()
On 28/03/17 00:30, Robert Lewis wrote:
> Hi,
>
> I am tracking down a fairly sporadic bug in our software that uses Tomcat
> 8.0.38. Long story short, sometimes calls to Basic.sendBinary() to a full
> buffer then to a small buffer (eg. 8192x3 then 444 bytes). The first 8192
> sends will succeed an
On 10/21/2015 1:08 PM, Christopher Schultz wrote:
Rallavagu,
On 10/20/15 9:46 AM, Rallavagu wrote:
Please take a look at Memory Analyzer tool
(http://www.eclipse.org/mat/). Run the app and take the heap dump while
app is running and use the tool to analyze it. You could use VisualVM
with plugin
Rallavagu,
On 10/20/15 9:46 AM, Rallavagu wrote:
> Please take a look at Memory Analyzer tool
> (http://www.eclipse.org/mat/). Run the app and take the heap dump while
> app is running and use the tool to analyze it. You could use VisualVM
> with plugins to get instrumentation or you could use hpr
Please take a look at Memory Analyzer tool
(http://www.eclipse.org/mat/). Run the app and take the heap dump while
app is running and use the tool to analyze it. You could use VisualVM
with plugins to get instrumentation or you could use hprof
(http://docs.oracle.com/javase/7/docs/technotes/sam
Thanks for the advice. The LOG stmt is just a method that filters all our
logging then calls into log4j. There is nothing complex about it, it just
filters out some of our logging based on system settings.
I will look into some of your suggestions, thanks for the tips.
Christopher Schultz-2
Ok, alot of good suggestions, thanks! I will see if I can get customer
feedback and analyze some of the things you mentioned.
Peter Crowther wrote:
>
> 2009/8/21 neilgoldsmith
>
>> My first question, what is the best tool to monitor this so we can get an
>> accurate description of when the p
No worries, thanks for the response.
George Sexton wrote:
>
> You know, it looks like I owe you an apology.
>
> I answered your question without reading the whole thing. I know how
> aggravated that makes me feel.
>
> I'm sorry.
>
> George Sexton
> MH Software, Inc.
> http://www.mhsoftwa
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Neil,
On 8/21/2009 11:10 AM, neilgoldsmith wrote:
> periodically they will experience a big slowdown on the app server
> which does eventually recover (slows down for maybe an hour). We had
> them increase their maxThreads from 150 to 300 and increase
You know, it looks like I owe you an apology.
I answered your question without reading the whole thing. I know how
aggravated that makes me feel.
I'm sorry.
George Sexton
MH Software, Inc.
http://www.mhsoftware.com/
Voice: 303 438 9585
> -Original Message-
> From: neilgoldsmith [mail
2009/8/21 neilgoldsmith
> My first question, what is the best tool to monitor this so we can get an
> accurate description of when the problems occur and what might be at fault?
> They just started running perfmon (on a Windows system), but as of yet I
> have not seen any data from it. Is there
and dig deeper to justify your assumptions.
George Sexton
MH Software, Inc.
http://www.mhsoftware.com/
Voice: 303 438 9585
> -Original Message-
> From: neilgoldsmith [mailto:ne...@avaya.com]
> Sent: Friday, August 21, 2009 9:21 AM
> To: users@tomcat.apache.org
> Subject:
I don't have direct access to their system, but they assure me this server is
only used for this purpose and nothing else is running on their servers.
They have 2 servers (exact same config) running Tomcat and load balance 1:1
between the 2. When I looked at the log for the 2nd server, it had no
So, I take it you've monitored the machine and made sure there are no other
processes using up CPU/IO Bandwidth?
George Sexton
MH Software, Inc.
http://www.mhsoftware.com/
Voice: 303 438 9585
> -Original Message-
> From: neilgoldsmith [mailto:ne...@avaya.com]
> Sent: Friday, August 21,
> From: Darryl Pentz [mailto:djpe...@yahoo.com]
> Subject: Re: Tracking down OOM - PermGen using jmap and jhat
>
> I found this thread:
> http://forum.springframework.org/printthread.php?t=21383&pp=40
There's a lot of real BS in that thread. There is one accurate and u
be making any major
architectural changes and Tomcat has worked well for us in all other respects.
Thanks again,
Darryl
- Original Message
From: "Caldarale, Charles R"
To: Tomcat Users List
Sent: Tuesday, March 10, 2009 5:52:29 PM
Subject: RE: Tracking down OOM - PermGen
> From: Darryl Pentz [mailto:djpe...@yahoo.com]
> Subject: Re: Tracking down OOM - PermGen using jmap and jhat
>
> I tried using JConsole's GC button, but
> clearly this didn't do the trick.
Did clicking the button run a major GC (aka PS MarkSweep)?
Are any clas
Hi Charles,
Thanks for the info. I recall a post of yours I read on the Nabble list related
to this stuff so I appreciate and value your feedback.
I think I misspoke earlier. When I said the memory is still littered with the
application classes, I mean virtually everything, thousands of dynami
> From: Darryl Po force a entz [mailto:djpe...@yahoo.com]
> Subject: Tracking down OOM - PermGen using jmap and jhat
>
> in both cases when I run jmap/jhat the resulting output shows
> the memory to still be littered with the application classes.
Which is likely the exact memory leak you're loo
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Scott and Kevin,
Scott Smith wrote:
> I'm using Tomcat 5.5 and using dataSourceRealm to do authentication. I
> need to track bad logins. In particular, I want to track any logins
> where the password is wrong. I also want to track the remote server
ckson [mailto:[EMAIL PROTECTED]
Sent: Mon 10/29/2007 10:03 PM
To: Tomcat Users List
Subject: Re: Tracking Authentication rejects in Tomcat 5.5
Hi,
> Does anyone have a suggestion? Does the general approach seem
> reasonable?
We have similar requirements, but at the moment we are using a
Hi,
> Does anyone have a suggestion? Does the general approach seem
> reasonable?
We have similar requirements, but at the moment we are using a
subclass of JDBCRealm, here is our authenticate method:
@Override
public Principal authenticate(Connection connection, String userName,
String
Tomcat 5.5 has an all-to-all replication mechanism, hence all nodes
should be identical. you would only need to see the sessions on one node
to get a picture of what is looks like elsewhere.
there is a flag called "notifyListenersOnReplication" this is only for
attribute replication for nodes
Christopher Schultz wrote:
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Bret,
Bret Davies wrote:
I want to be able to track who (by user defined name) logs in and
when. Can you help me out or point me in the right direction.
I'm assuming that you are using container-manager security -- tha
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Bret,
Bret Davies wrote:
> I want to be able to track who (by user defined name) logs in and
> when. Can you help me out or point me in the right direction.
I'm assuming that you are using container-manager security -- that is,
Tomcat is enforcing t
Charles, see also my reply to Nanda Kumar's thread "Cannot get a connection,
pool exhausted" for a coding example. HTH :)
> -Original Message-
> From: Steve Kirk [mailto:[EMAIL PROTECTED]
> Sent: Wednesday 26 October 2005 14:01
> To: 'Tomcat Use
Charles, I don't know of a way to have TC clear up conns for you, but you
really should clear up connections explicitly. To some extent DBCP will
clear up "abandoned" connections (to which you had a variable reference,
which goes out of scope when you have finished processing the request), but
th
You do not say which version of Tomcat you are using. But in general you can
set the removeAbandoned* parameters to mitigate the problem (i.e. it will
take longer to stop responding).
If using 5.5.x look for the heading "Preventing dB connection pool leaks"
at:
http://tomcat.apache.org/tomcat-5.
Man, this feels like telling someone how to shoot their foot off, but this
would be shorter:
new Exception().printStackTrace();
Larry
On 10/25/05, Steve Stearns <[EMAIL PROTECTED]> wrote:
>
> Charles P. Killmer wrote:
>
> >I have a bunch of JSP files that all instantiate a single class file.
>
Charles P. Killmer wrote:
I have a bunch of JSP files that all instantiate a single class file.
Is there a way for the class file to log which file called it and
ideally from which line the call was made?
There might be a better way to do this but off the top of my head I
should think this wou
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