I don't think I saw any error messages at all in Tomcat. Just in the apache logs. When I debugged I noticed an EOFException in the AJPProcessor. The service method catches all type of IOExceptions and sets the error state but doesn't log anything.
/Andreas -----Original Message----- From: Christopher Schultz [mailto:ch...@christopherschultz.net] Sent: den 8 maj 2018 18:59 To: users@tomcat.apache.org Subject: Re: Changing the packetSize in AJP connector causes 503 Internal Server Error in Tomcat 9 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Mark, On 5/3/18 5:41 AM, Mark Thomas wrote: > On 03/05/18 10:36, Mark Thomas wrote: >> On 03/05/18 09:48, Andreas Bergander wrote: >>> Hi, >>> >>> I've upgrade from Tomcat 8.5 to 9.0.7 and I've got an issue >>> regarding the packet size in the AJP connector. It seems like only >>> the default value (8192) works now. If I set it to anything greater >>> than that I'll get 503 Internal Server Error when trying to access a >>> web page. It worked fine in 8.5 but now I get EOFExceptions in the >>> AJP processor. Has anything changed regarding the packet size? >>> Should it still work with values greater than 8192? >> >> It should work but I can confirm that it currently does not. >> Investigating now... > > That was easy :) > > You need to remember to change the packet size to be exactly the same > value on both Tomcat and httpd. > > When I changed it just on Tomcat (to 20000), I saw 503 errors from > httpd. Once I changed them both to be 20000, everything worked as > expected. This bites enough people that it may be worth correcting, or at least changing the behavior when it happens. AJP already encodes the packet-size in the header of each packet. Why not simply compare that to the MaxPacketSize on the Tomcat side and issue a useful error message instead of whatever is currently happening? Andreas, what error message(s) do you see in the log(s) on the Tomcat side when this happens? Or maybe even auto-size the buffer on the Tomcat side to be nice about i t? Oddly enough, the AJP documentation[1] says that the practical limit of the packet size is 8k, though I and probably many others have happily been using higher values for quite some time. - -chris [1] http://tomcat.apache.org/connectors-doc/ajp/ajpv13a.html -----BEGIN PGP SIGNATURE----- Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAlrx12IACgkQHPApP6U8 pFgtAw/+I0Wv4uMERn01xjvuokEnv5daGe0QKTV7Gw6QYMQqb0hJM29yseRmMzDm NXMFyyaKb5URdrTcxk9Mt5nQVPl0vc8Qmf7CbK8rqntrUN//eGfSdsXxWi987SR6 9bF5/C0+b/KcXlPuT2FRejBsZBwI/mnktWyuBBJ5UHl23q6pL6WmuTjz7PrEVF9O QfzA6ztlZN3LzICaNVC/h4zmMm+rwR7zL32v/lO3wve9AvrlZIpNI83e0bhYHdm3 TWaF3PCwQGgRKoWPFRw4Hv4Y+VHyMyaNtjc4nKRszk5SwyO9vgiU/VzdRiX+0Lw4 B716nX7E3ETUYYHMr7d02MRhhNoxttc0WhKCqhMMjRskwvCljbtkhyvt7NYR2Zsc xmMxcPRNjUCxKz01ZWLakZ73s0CvuKSBClRAjDxWoYBmOpz88PHr4YeO4l9ME0Du fwcnMuRvyNlbsZMz6jAQqDEwfqybvmWTdDGDFlj4+SQxX+Qf5wytbQ4tgTXvYPmx UiyCjjRi/hLCxxkNvMf0mOcN8nair56Qly6Z1T+JR6ztbSugRAhmZAx8oHtL8HKF QrR5yVuGJyBdysbkxq1q29bHt9bGHpnzHsifZjHGNk3tQiLWZ5aKkguv0CizmPm8 y7tAAYL9feAkaybeUw7BBb13gANLOpfIQi1NC6iavnrOsG13gBU= =rEkE -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
