Hi Chris, thanks for the explanations. I just completed a first dirty test and it is actually working fine. I believe I did something wrong on my first trial. I did put the distributable="true" attribute in the Context element of my context file in $CATALINA_BASE/conf/[[enginename]/[hostname]/mywebapp.xml instead of adding the empty element <distributable/> in $CATALINA_BASE/webapps/mywebapp/WEB-INF/web.xml.
It seems the former is not working, at least with Tomcat 8.0.32 ----------------- Daniel Savard 2016-03-08 15:08 GMT-05:00 Christopher Schultz <ch...@christopherschultz.net>: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Daniel, > > On 3/8/16 2:27 PM, Daniel Savard wrote: >> I wonder how you handle a pool of connections (not necessarily to >> a database, think about something generic) in a clustered >> environement. > > Generally, there is nothing to be done, here. Each node is considered > completely separate with the exception of trading HttpSession informatio > n. > >> I defined a pool of connections in my application context and I >> did put it in the context with the setAttribute() method. Since >> each instance is doing this, what will happen when an instance is >> shutdown? > > I believe that no context-scoped data is sent between cluster nodes, > so ... nothing will happen. > >> These connections depend on the IP/protocol/port on both sides. >> So, since the instance is down, one party no longer exists. What >> is happening if a take over instance receives an incoming request >> which refers to one of these connections? >> >> Do I have to handle this in my code? Do I have to reinitialize the >> connection pool if such an event happen? > > If your application maintains its own connection pool, then you should > create it with each webapp start and destroy it with each webapp stop. > > I don't think there are any cluster-related issues, here. > > - -chris > -----BEGIN PGP SIGNATURE----- > Comment: GPGTools - http://gpgtools.org > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iEYEARECAAYFAlbfMTIACgkQ9CaO5/Lv0PCL5gCguI2eODlB+8Brz9gpjJZGGzpM > jD4An1Nag5xcNN+2vXKq7xpw6H8Gdhg/ > =Gx0w > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
