We have nginx version: nginx/1.6.2 and tomcat 7 as the setup and see these errors in our nginx logs. Can some explain what this error means and if we need to change any settings in our setup to make this work.
2015/10/06 11:05:00 [error] 1005#0: *3026220 readv() failed (104: Connection reset by peer) while reading upstream, client: 10.144.106.221, server: _, request: "GET /exelate/usersync?
segment=3460,3461,3462,3463,3466,1475,3482,3485,8129,1443,8128,1444,1438,1440,1442,5174,5173,3457,3455,3456,3453,3454,3451,1447,1448,3452,3449,145
We increased the Http header size for tomcat and this issue has been resolved. We made maxHttpHeaderSize="65536" so that tomcat can accept 64KB headers default is 8KB.