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Posted to dev@tomcat.apache.org by bu...@apache.org on 2014/04/30 13:38:45 UTC

[Bug 56474] New: WebSocket memory consumption too much

https://issues.apache.org/bugzilla/show_bug.cgi?id=56474

            Bug ID: 56474
           Summary: WebSocket memory consumption too much
           Product: Tomcat 8
           Version: 8.0.5
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: major
          Priority: P2
         Component: WebSocket
          Assignee: dev@tomcat.apache.org
          Reporter: veliscu.cristi@gmail.com

Hi, 

I noticed that for 60k websockets the memory consumption is around 6G. I
compared with other Web/EE containers and it's with at least 75% more (same
test, just creating 60 thousands persistent connections).

Has to do with default Socket io buffers? 


My HTTP configuration:
<Connector port="8080" protocol="org.apache.coyote.http11.Http11NioProtocol"
connectionTimeout="20000" keepAliveTimeout="-1" redirectPort="8443" 
acceptCount="20000" acceptorThreadCount="8" maxThreads="10000" 
maxConnections="-1" maxKeepAliveRequests="-1" />


Thank you,  
Cristian

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[Bug 56474] WebSocket memory consumption too much

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=56474

--- Comment #2 from vlcvlc <ve...@gmail.com> ---
(In reply to Konstantin Kolinko from comment #1)
> (In reply to vlcvlc from comment #0)
> 
> At least the following in your configuration is insane:
> 10000 threads x 2Mb jvm thread stack each = 20 Gb.
> 
> Bugzilla is NOT a support forum. The users mailing list is the place to look
> for help. If people identify that some specific defaults need changing, come
> back here.
> 
> http://tomcat.apache.org/bugreport.html#Bugzilla_is_not_a_support_forum

2Mb per Thread? Is the default?

Thank you
Cristian

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[Bug 56474] WebSocket memory consumption too much

Posted by bu...@apache.org.
https://issues.apache.org/bugzilla/show_bug.cgi?id=56474

Konstantin Kolinko <kn...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #1 from Konstantin Kolinko <kn...@gmail.com> ---
(In reply to vlcvlc from comment #0)

At least the following in your configuration is insane:
10000 threads x 2Mb jvm thread stack each = 20 Gb.

Bugzilla is NOT a support forum. The users mailing list is the place to look
for help. If people identify that some specific defaults need changing, come
back here.

http://tomcat.apache.org/bugreport.html#Bugzilla_is_not_a_support_forum

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