I don't think that can happen. I'm using sticky session so the first server gets all requests, then I kill it and only then are requests routed to the second server.
On Mon, 18 May 2020, 21:15 Christopher Schultz, < ch...@christopherschultz.net> wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA256 > > Jonathan, > > On 5/18/20 12:52, Jonathan Yom-Tov wrote: > > I see the persisted copy in the file and it has two keys, so I > > don't think that's it. It's probably some sort of parallelism issue > > since it happens only occasionally, but the map is a > > ConcurrentHashMap, so I can't see how it would be overwritten. > > What happens if both servers write the file at the same time? > > - -chris > > > On Mon, 18 May 2020, 19:47 Mark Thomas, <ma...@apache.org> wrote: > > > >> On 18/05/2020 15:23, Jonathan Yom-Tov wrote: > >>> Here's my setup: I have two Tomcats using PersistentManager > >>> with > >> FileStore > >>> to store sessions on a NFS they both have access to. Inside the > >>> session there's an object which contains a map. I also have a > >>> request listener > >> that > >>> logs the contents of the map on every request. > >>> > >>> I kill one Tomcat and I can see in the session file that the > >>> map contains two keys. I then make a request to the remaining > >>> Tomcat and I can see the map contains only one key. > >>> > >>> The only way I can think of that that would happen is if the > >>> map was only partially loaded from the file. Is that even > >>> possible? Any good ideas on how to debug this? > >> > >> Best guess you add the Map containing one key to the session and > >> then later add a second key the Map. Tomcat doesn't consider the > >> session to be updated when the second key is added so the > >> persisted copy doesn't get updated. > >> > >> Mark > >> > >> > >> --------------------------------------------------------------------- > >> > >> > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > >> For additional commands, e-mail: users-h...@tomcat.apache.org > >> > >> > > > -----BEGIN PGP SIGNATURE----- > Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ > > iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAl7C0MgACgkQHPApP6U8 > pFh8MQ/7BXrjQ9dpvDIbXBaWXXF+1jAXHccOCn471SjN4rqkn5zuyQcPASEI0Gxs > bgfVnKRJu6ZCc5yQhkISLB4l2aE7/+duL8SRFygcaZRrVeBtRi+LSOyQQRAYqGyJ > PbVgO0eAp823+ii93tkWgUxpRgKERmlyM+6M5R22OKHW5Erck+DLLK1xeEn8HYOU > DvNMxS2/eawoxl811JwGfhUX/01tazV9kjeaRmVucUuqZWYQfX3qmCTAHyBDrT5b > hu76BkZQ5/aB+sZUClZu0/PuGQ3Q8vNJjDh+FlYjpuxzm7wotJxCp682+RgkfriK > bLE9a2Fn7Lzr2OZt2ZmPXnvMO0/Ai9Pb4Z+fMF/vWkMs6ZtH5RwxYiLfl/uzQrFj > oH9+bNj/WXOSOLLOOFE16UZc7P59G5NvI1iEpRtzOJOSZRVDchq9nff6sSfEhK1z > 9cOSVuBpvRSyKAhAC62G5q0eSHQ9GEJGwBREqkFAift0qn8MtjRe+XzPR9CBwcZ2 > HPwFTZ+Bs5ohqpCXijc9nwg0UwiAFefUdPEpVJHDJoRsv4IC06fagdAZaqAWeaEu > LiY0lPWFj+7YnQ4oV9mfho19B8y1hwA6eGKaU3BSHfyc67knqZFtZYyfFVITXHh1 > E/SuOlXM3gci3vbhpHV6JqDeItmkB810Dx4McbsRUNFqu9982pc= > =Y5dx > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
