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Jesse,
On 12/22/16 10:41 AM, Jesse Barnum wrote:
>
>> On Dec 22, 2016, at 10:39 AM, Christopher Schultz
>> <ch...@christopherschultz.net> wrote:
>>
>> On 12/22/16 10:20 AM, Jesse Barnum wrote:
>>> I am running multiple webapps on Tomcat 7, and I’ve noticed
>>> that when shutting down Tomcat, the ContextListeners are called
>>> in serial, instead of in parallel. Some of these webapps take
>>> 5-15 seconds to run various shutdown procedures. This can
>>> exceed the timeout period for shutting down, which means that
>>> the orderly shutdown process can be skipped when there are more
>>> then 5 or 6 webapps.
>>>
>>> I know one solution for this problem is to increase the
>>> shutdown timeout. However, is there a good reason to shutdown
>>> contexts in serial, rather than in parallel? That would solve
>>> the problem and prevent lengthy shutdowns, which in turn would
>>> reduce downtime for maintenance.
>>
>> Which exact version of Tomcat 7 are you using?
>
> Apache Tomcat/7.0.65
>
> Has this changed in a newer version? I’m happy to update if that is
> the case.
There's 7.0.73 but it shouldn't make too much of a difference. I just
wanted to make sure you weren't running 7.0.1-RC or some weird thing
that's ages old.
In Tomcat 7 there is a setting on the <Engine> component called
"startStopThreads"[1]. The default is 1 which means that a single
thread will be used to start/stop applications during
startup/shutdown, so the behavior you are seeing is expected.
If you want to use more threads, then you'll need to add/adjust that
setting. Something like this:
server.xml
- ----------
...
<Engine name="Catalina" defaultHost="localhost"
startStopThreads="6">
...
</Engine>
...
That setting should use 6 threads and start/stop all your applications
simultaneously.
- -chris
[1]
http://tomcat.apache.org/tomcat-7.0-doc/config/engine.html#Common_Attrib
utes
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