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apache / couchdb-twig / 72dccc6f1e982cbe00423fa384305e32a556fd3b
commit72dccc6f1e982cbe00423fa384305e32a556fd3b[log] [tgz]
authorILYA Khlopotov <iilyak@ca.ibm.com>Wed May 11 08:15:50 2016 -0700
committerILYA Khlopotov <iilyak@ca.ibm.com>Wed May 11 08:15:50 2016 -0700
tree8ccbe650f611a8a1e88e7d634b9e1fef3c5cb3a6
parentec9498818601896dbd931b099477bd02db8ecc24 [diff]
Implement couch_log behaviour

couch_log was updated in such a way that the module name of a couch_log
backend has to follow following convention `couch_log_<backend_name>`.
1 file changed
tree: 8ccbe650f611a8a1e88e7d634b9e1fef3c5cb3a6
  1. src/
  2. README.md
README.md

Twig is a SASL-compliant Erlang/OTP logger. It installs a gen_event handler in the error_logger event manager, where it consumes standard OTP reports and messages as well as events generated by twig:log/2,3,4. Log messages are written to a syslog server over UDP using the format specified in RFC 5424.

Twig's behavior is controlled using the application environment:

  • host (undefined): the hostname of the syslog server
  • port (514): the port of the syslog server
  • facility (local2): syslog facility to be used
  • level (info): logging threshold. Messages “above” this threshold (in syslog parlance) will be discarded. Acceptable values are debug, info, notice, warn, err, crit, alert, and emerg.
  • appid (“twig”): inserted as the APPID in the syslog message
  • max_term_size (8192): raw data size below which we format normally
  • max_message_size (16000): approx. max size of truncated string