Thx for reply, Do You think it would be hard to implement it in Tomcat ? It seems to be quite a useful feature.
Regards Jakub On Tue, Jan 14, 2014 at 3:26 PM, Daniel Mikusa <dmik...@gopivotal.com>wrote: > On Jan 13, 2014, at 7:48 PM, Ja kub <jjaku...@gmail.com> wrote: > > > I modified conf/context.xml <Context unloadDelay="60000"> > > I hoped tomcat would wait 60 seconds for request to end. > > No, it doesn't do this. It does not have an option for "graceful" restart > / shutdown like Apache HTTPD. If you want that behavior, you could setup a > proxy in front of Tomcat and use that to either temporarily handle the > requests (like send them to a maintenance page) or direct them to a > different Tomcat node (like with a cluster setup). In this way you can > slowly drain the requests from your Tomcat server and then safely restart / > shut it down. > > > But there are some problems with spring app, I get > > > > HTTP Status 503 - Servlet jsp is currently unavailable: > > > > I use tomcat 7.42 64 bit on windows 7 > > > > steps to reproduce: > > As mentioned above, Tomcat doesn't really have a graceful shutdown option, > at least not like HTTPD has graceful restart / shutdown options. > > Tomcat has two shutdown options. The first is a controlled shutdown (kill > -15 or the shutdown port) and this nicely gives applications deployed to > Tomcat the chance to clean up. This is normally what happens when you use > the shutdown script. The second is a kill -9, which just ends the process > immediately. > > Dan > > > > > use app from https://github.com/spring-projects/spring-petclinic > > > > git clone https://github.com/SpringSource/spring-petclinic.git > > > > to VetController class add: > > > > @RequestMapping("/vets/{delay}") > > public String showVetListDelayed(@PathVariable int delay, Map<String, > > Object> model) { > > // Here we are returning an object of type 'Vets' rather than a > > collection of Vet objects > > // so it is simpler for Object-Xml mapping > > Vets vets = new Vets(); > > vets.getVetList().addAll(this.clinicService.findVets()); > > model.put("vets", vets); > > try { > > Thread.sleep(1000*delay); > > } catch (InterruptedException e) { > > // TODO Auto-generated catch block > > e.printStackTrace(); > > } catch (Exception e) { > > e.printStackTrace(); > > } > > System.err.println("woken up ---------------------------"); > > return "vets/vetList"; > > } > > mvn clean install > > > > // copy from target to webapps > > > > go to > > http://localhost:8080/petclinic/vets/5 > > hit ctrl C > > > > app sleeps, wait until > > System.err.println("woken up ---------------------------"); executes !!!! > > but browser gets error. > > > > below is console log: > > > > Hibernate: select distinct vet0_.id as id1_5_0_, specialty2_.id as > > id1_2_1_, vet0_.first_ > > specialty2_.name as name2_2_1_, specialtie1_.vet_id as vet1_5_0__, > > specialtie1_.specialt > > join vet_specialties specialtie1_ on vet0_.id=specialtie1_.vet_id left > > outer join special > > alty2_.id order by vet0_.last_name, vet0_.first_name > > Jan 14, 2014 1:20:15 AM org.apache.catalina.core.StandardServer await > > INFO: A valid shutdown command was received via the shutdown port. > Stopping > > the Server in > > Jan 14, 2014 1:20:15 AM org.apache.coyote.AbstractProtocol pause > > INFO: Pausing ProtocolHandler ["http-apr-8080"] > > Jan 14, 2014 1:20:15 AM org.apache.coyote.AbstractProtocol pause > > INFO: Pausing ProtocolHandler ["ajp-apr-8009"] > > Jan 14, 2014 1:20:15 AM org.apache.catalina.core.StandardService > > stopInternal > > INFO: Stopping service Catalina > > Jan 14, 2014 1:20:16 AM org.apache.catalina.core.StandardWrapper unload > > INFO: Waiting for 1 instance(s) to be deallocated for Servlet [petclinic] > > woken up --------------------------- > > INFO XmlWebApplicationContext - Closing WebApplicationContext for > > namespace 'petclinic-s > > ]; parent: Root WebApplicationContext > > INFO XmlWebApplicationContext - Closing Root WebApplicationContext: > > startup date [Tue Ja > > INFO AnnotationMBeanExporter - Unregistering JMX-exposed beans on > shutdown > > INFO EhCacheManagerFactoryBean - Shutting down EhCache CacheManager > > INFO LocalContainerEntityManagerFactoryBean - Closing JPA > > EntityManagerFactory for persi > > Jan 14, 2014 1:20:22 AM org.apache.catalina.loader.WebappClassLoader > > clearReferencesJdbc > > SEVERE: The web application [/petclinic] registered the JDBC driver > > [org.hsqldb.jdbc.JDBC > > plication was stopped. To prevent a memory leak, the JDBC Driver has been > > forcibly unregi > > Jan 14, 2014 1:20:22 AM org.apache.catalina.loader.WebappClassLoader > > clearReferencesThrea > > SEVERE: The web application [/petclinic] appears to have started a thread > > named [PoolClea > > p it. This is very likely to create a memory leak. > > Jan 14, 2014 1:20:22 AM org.apache.coyote.AbstractProtocol stop > > INFO: Stopping ProtocolHandler ["http-apr-8080"] > > Jan 14, 2014 1:20:22 AM org.apache.coyote.AbstractProtocol stop > > INFO: Stopping ProtocolHandler ["ajp-apr-8009"] > > Jan 14, 2014 1:20:22 AM org.apache.coyote.AbstractProtocol destroy > > INFO: Destroying ProtocolHandler ["http-apr-8080"] > > Jan 14, 2014 1:20:22 AM org.apache.coyote.AbstractProtocol destroy > > INFO: Destroying ProtocolHandler ["ajp-apr-8009"] > > > > > > Regards > > Jakub > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
