André, Paul, and Coty, you've all provided some great next steps. I'll
investigate further and be back in touch!
--Eric
-Original Message-
From: André Warnier (tomcat)
Sent: Thursday, August 8, 2019 3:53 PM
To: users@tomcat.apache.org
Subject: Re: Tomcat Server Using 100% CPU
On
On 08.08.2019 20:08, Eric Robinson wrote:
Utkarsh and John, thank you for your feedback.
Since everything was originally on Windows, and we built a new Linux server
with fresh tomcat installs, and the only thing we moved over from the old
Windows servers was the tomcat application folder
Please post a jstack of the pid 10 seconds apart. That will reveal all.
On Thu, 08 Aug 2019, 20:22 Coty Sutherland, wrote:
> I'd suggest writing a small script to loop about 10 times and capture top
> and thread dumps with jstack at the same time, then wait a few seconds then
> repeat. After
I'd suggest writing a small script to loop about 10 times and capture top
and thread dumps with jstack at the same time, then wait a few seconds then
repeat. After that you can grab the pid/tid from the top output and compare
that with your thread dump to see exactly what the thread is doing for
Utkarsh and John, thank you for your feedback.
Since everything was originally on Windows, and we built a new Linux server
with fresh tomcat installs, and the only thing we moved over from the old
Windows servers was the tomcat application folder itself, and the 100% CPU
problem persisted, I
Did you reviewed the localhost_access log file. Which web-application is
using tomcat the most ?
On Thu, Aug 8, 2019 at 9:53 AM Eric Robinson
wrote:
> We have a farm of VMs, each running multiple instances of tomcat (up to 80
> instances per server). Everything has been running fine for years,
Eric,
> -Original Message-
> From: Eric Robinson
> Sent: Thursday, August 08, 2019 11:53 AM
> To: users@tomcat.apache.org
> Subject: Tomcat Server Using 100% CPU
>
> We have a farm of VMs, each running multiple instances of tomcat (up to 80
> instances per server). Everything has been
We have a farm of VMs, each running multiple instances of tomcat (up to 80
instances per server). Everything has been running fine for years, but recently
one server has started nailing the CPU to 100% utilization.
We have tried:
* Different versions of tomcat and JDK
* Doubling the
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Hash: SHA256
Munzer,
On 8/5/19 20:42, Munzer Khatib wrote:
> Here are the steps I used to create the keystore and import
> certificate to it.
These steps look okay, with the exception that Peter (logo) pointed
out: you have used two different keystores in your
Mark,
Am 08.08.2019 11:45, schrieb Mark Thomas:
On 08/08/2019 10:15, Alten, Jessica-Aileen wrote:
Therefore, I guess Tomcat cannot interpret these cipher suites for TLS
1.3. So is this possibly a bug in Tomcat with openSSL 1.1.1c
and JDK 8 (again: I am not talking about JSSE here, it can only
On 08/08/2019 10:15, Alten, Jessica-Aileen wrote:
> Therefore, I guess Tomcat cannot interpret these cipher suites for TLS 1.3.
> So is this possibly a bug in Tomcat with openSSL 1.1.1c
> and JDK 8 (again: I am not talking about JSSE here, it can only do TLS 1.2)?
Tomcat supports configuring
> > I have a problem with the Tomcat 9.0.22 configuration for TLSv1.3 using
> > jdk8u222-b10_openj9-0.15.1 on Windows Server 2016. In principle
> > TLSv1.3 works, but I want to specify the allowed cipher suites as well.
> >
> > The relevant parts of server.xml are:
> > > SSLEngine="on" />
> >
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