Hi,
The sample and a Java Flight recording were uploaded on GitHub:
https://github.com/dchirov/camel-performance-sample.git
Best Regards, Denis
-----Original Message-----
From: Claus Ibsen <claus.ib...@gmail.com>
Sent: Saturday, September 19, 2020 6:28 PM
To: users@camel.apache.org
Subject: Re: Performance regression with bean and ognl expressions in Simple
language version 3.4.x
Hi
Many things have changed of course when you go from a major version v2 to v3.
Can you put together a very small example application that can run standalone
that can be used to reproduce the issue. And if it can run outside Spring Boot
with just a basic public static void main then its maybe even easier.
And then put the sample somewhere like on github or create a JIRA ticket and
attach as .zip.
On Thu, Sep 17, 2020 at 2:32 AM Corneliu Chitic
<corneliu.chi...@computaris.com.invalid> wrote:
>
> Hi,
>
> we've identified a performance regression while running same code with Apache
> Camel 3.4.3 + Spring Boot vs Apache Camel 2.24.2 with Spring framework 5.1.9.
> We've migrated one application to this LTS version and we face this impact.
> The main bottleneck is the synchronized block from:
> org.apache.camel.impl.engine.AbstractCamelContext.resolveLanguage(String).
> The root cause is the time spent to validate Simple expressions when using
> bean language (${bean:name?method=something}) or OGNL like calls to POJO
> methods (${exchangeProperty.pojo.method}). According to the stack traces the
> new version spends time to allocate the bean + full setup of it. Blocking
> times are quite high (average 100ms, max could be ~300ms) and as the number
> of parallel processing threads increases it goes up steadily.
>
> Has anything changed in version 3.x (or more precisely 3.4.x)? The changelogs
> and upgrade tutorial didn't suggested anything in this area.
> Is there any configuration flag that would allow us to switch back to version
> 2.x mode of working for this functionality?
>
> We have run repeated trials and have consistent results with both versions;
> we have a project setup to demo this and also some Java Flight recordings for
> comparison. I don't think I can attach anything to this maillist, please let
> me know how I can provide any additional input if needed.
>
> Thank you, Corneliu
> This email is subject to Computaris email terms of use:
> https://www.computaris.com/email-terms-use/
--
Claus Ibsen
-----------------
http://davsclaus.com @davsclaus
Camel in Action 2: https://www.manning.com/ibsen2
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