other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 5.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or setting minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Documentation, Release 6.1 The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. 6.1. User’s guide 35

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 4.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error Tornado Documentation, Release 4.5.3 (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or setting minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. Processes and ports

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. Processes and ports

iostream — Convenient wrappers for non-blocking sockets tornado.netutil — Miscellaneous network utilities tornado.tcpclient — IOStream connection factory tornado.tcpserver — Basic IOStream-based TCP server tornado.locks – Synchronization primitives tornado.queues – Queues for coroutines tornado.process — Utilities for multiple processes Integration with other services tornado.auth — Third-party login with OpenID between Twisted and Tornado Utilities tornado.autoreload — Automatically detect code changes in development tornado.log — Logging support tornado.options — Command-line parsing tornado.stack_context

other services . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 136 6.7 Utilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce a custom error open files”-Error). To raise this limit (setting it to 50000 for example) you can use the ulimit command, modify /etc/security/limits.conf or set minfds in your supervisord config. 36 Chapter 6. DocumentationTornado