annotate mod_debug_traceback/README.markdown @ 5536:96dec7681af8

mod_firewall: Update user marks to store instantly via map store The original approach was to keep marks in memory only, and persist them at shutdown. That saves I/O, at the cost of potentially losing marks on an unclean shutdown. This change persists marks instantly, which may have some performance overhead but should be more "correct". It also splits the marking/unmarking into an event which may be watched or even fired by other modules.
author Matthew Wild <mwild1@gmail.com>
date Thu, 08 Jun 2023 16:20:42 +0100
parents 5841d54cb6c6
children 0358fcf14cd6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4214
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
1 ---
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
2 labels:
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
3 - 'Stage-Alpha'
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
4 summary: Generate tracebacks on-demand
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
5 ---
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
6
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
7 # Introduction
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
8
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
9 This module writes out a traceback to a file when a chosen signal (by default
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
10 `SIGUSR1`) is received. It can be useful to diagnose cases where Prosody is
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
11 unresponsive.
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
12
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
13 # Configuration
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
14
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
15 `debug_traceback_filename`
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
16 : The name of the file to write the traceback to. Some variables
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
17 are supported, see [mod_log_ringbuffer] docs for more info. Defaults
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
18 to `{paths.data}/traceback-{pid}-{count}.log`.
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
19
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
20 `debug_traceback_signal`
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
21 : The name of the signal to listen for. Defaults to `SIGUSR1`.
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
22
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
23 # Compatibility
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
24
5841d54cb6c6 mod_debug_traceback: Descendent of mod_traceback with some additional features
Matthew Wild <mwild1@gmail.com>
parents:
diff changeset
25 Prosody 0.11 or later.