WHY? Tomcat 5 maxThreads too low, set to 10 2004-02-03 - By Shapira, Yoav
Back
Howdy,
You might also use two tomcat instances -- much easier to tune.
Yoav Shapira
Millennium ChemInformatics
>-- --Original Message-- --
>From: Parris, Edward G [mailto:edward.g.parris@(protected)]
>Sent: Monday, February 02, 2004 5:38 PM
>To: tomcat-user@(protected)
>Subject: WHY? Tomcat 5 maxThreads too low, set to 10
>
>
>I have a single server running Tomcat supporting several webapps. The
web
>apps fall into two categories:
> webapps that require quick response but that use few system resources
> webapps that are expected to process for a long period and consume
large
>amounts of system resources
>
>The goal is to create a tomcat configuration that supports these two
>categories of applications. My difficulty is that the number of
>simultaneous requests supportable within the system's memory
constraints is
>very different.
>
>In the past (Tomcat 4.1.27) I created two HTTP connectors with
different
>minProcessors, maxProcessors and acceptCount values. Web apps were
>registered/accessed via different ports effectively managing the
resources
>of the server. The connector on port 9080 supports a large number of
light-
>weight apps while the connector on 9081 queues up concurrent
heavy-weight
>requests beyond some configurable limit (3).
>
> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector  "
>port="9080"
> minProcessors="5" maxProcessors="75"
> enableLookups="true" redirectPort="9443"
> acceptCount="100" debug="0" connectionTimeout="20000"
> useURIValidationHack="false" disableUploadTimeout="true"
/>
>
> <Connector className="org.apache.coyote.tomcat4.CoyoteConnector "
>port="9081"
> minProcessors="3" maxProcessors="3"
> enableLookups="true" redirectPort="9443"
> acceptCount="9999" debug="0" connectionTimeout="0"
> useURIValidationHack="false" disableUploadTimeout="true"
/>
>
>I tried a similar configuration on Tomcat 5.0.18 but noticed a
ThreadPool
>warning on startup stating that my maxThreads setting was too low and
that
>it would be reset to 10.
>
>WARNING: maxThreads setting (3) too low, set to 10
>
>Does anyone have any ideas how I can rectify this situation? 10
concurrent
>threads is too many (at peak each heavy-weight can consume ~1GB of
memory).
>Simply increasing the memory limits is not going to do it.
>
>Thanks much,
>Ed
>
>
>-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
>To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
>For additional commands, e-mail: tomcat-user-help@(protected)
This e-mail, including any attachments, is a confidential business
communication, and may contain information that is confidential, proprietary
and/or privileged. This e-mail is intended only for the individual(s) to whom
it is addressed, and may not be saved, copied, printed, disclosed or used by
anyone else. If you are not the(an) intended recipient, please immediately
delete this e-mail from your computer system and notify the sender. Thank you.
-- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ------
To unsubscribe, e-mail: tomcat-user-unsubscribe@(protected)
For additional commands, e-mail: tomcat-user-help@(protected)
|
|
