-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Mark,
On 3/27/14, 5:38 AM, Mark Thomas wrote: > On 27/03/2014 03:08, Matthew Turany wrote: >> Is it possible to configure either apache or tomcat to send a >> packet every x number of seconds so that at the client end the >> gateway thinks the session is still active and will keep the >> connection open, or is this something best put into the actual >> web app? > > http://tomcat.apache.org/connectors-doc/reference/workers.html > socket_keepalive > > You'll need to configure the OS to send the packets frequently > enough. > > Alternatively, change the application design: - One request to > trigger generation of the report - N requests to retrieve report > which returns either "still processing" (maybe with an ETA) or > "here it is". +1 I believe this is a better design in the long-run. It also allows you to do things like off-line processing of batches without changing your UI. Another thing you could do is simulate the above by using a report-builder thread launched from your servlet, and then have your request-processing thread to a flush() on the response (causing chunked encoding to be used), then sleep for some amount of time (maybe 1-5 seconds), then check the status of the report, then flush() again (not sure if it will keep emitting 0-length chunks if you flush over and over again), then sleep again. This seems like a perfect use case for async processing. - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIcBAEBCAAGBQJTNFd6AAoJEBzwKT+lPKRYANwP/Rx3W5KQQnLzMx/xEY41cix0 JuAEGxZVQyX5LDwLlB5iivIAGdVqLZxXGP/4on/sIgl+XjC59hkU4N77oLokb3Cl heAgUmR9VA4KsUTMeSJmN0Km5lMOzCv3c+Ru5fAjSpsNKgp2SjsitpdGgRfebd1y djQfemWIkC6bBHjtW4PbwGkva9Kny8FVx2Ius8f6V+jKcHGLGztWIfy99rR0Oya3 2dP/JboBPH0PYW19Jhor7qM7IMJXJjdRSswnBc63e7runvw8hA1DD3KDW0mHceVo Q4Q0WW1zRaT1DOzkmQhOs4H68ev20EjV9DZu8Md17kJVrwkeFMN+GGNppLeivzdK UZHkEWbZjDZRcIGR0iEQQZGLVCRMImNsm+fBoO6piXrr8UFpzMUqXLMiSuD3Woab GFtvydUBuO4gyxAHXh2yW+XJ1iZBSfigUBvTZUKOyS1sEURBKmgTopySuJaKPhYN OMYCQ8e5MKbcxl09qp7JRg+H/jfIr9NBgakWrQRe4R1Pox1doMaNZsJufwpkbxH2 0CKNuLClIrvQC/iw5D7McB0o5PY5brOMGzWfdb6Psgnrq/4FB3QDdSCbIaQ8JF+E GfRZ5D2VE73ueb8dYiElA0t3fEV0DSdqOtxR40IwROlpR6My7HBUVgy/7dxkxEg7 xXj/B0T5nbShYxZrlw3S =RtBD -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
