I’m trying to use telegraf’s dovecot plugin. (I’m somewhat unclear if this forum is devoted to grafana only or the entire TICK stack.) So I do this:
# Read statistics from one or many dovecot servers
[[inputs.dovecot]]
## specify dovecot servers via an address:port list
## e.g.
## localhost:24242
##
## If no servers are specified, then localhost is used as the host.
servers = ["localhost:24242"]
## Type is one of "user", "domain", "ip", or "global"
type = "global"
## Wildcard matches like "*.com". An empty string "" is same as "*"
## If type = "ip" filters should be <IP/network>
filters = [""]
But dovecot seems to prefer talking to a named pipe. I think. I’m wondering if (1) I can get the telegraf plugin to talk to that pipe or (2) if anyone here has convinced dovecot actually to talk on port 24242.
This might be better asked of dovecot users, and my apologies if I should start there.
# This file is based on https://wiki2.dovecot.org/Statistics
# Dovecot v2.1+ supports gathering statistics (CPU, disk usage, etc.)
# from mail processes (IMAP, POP3, LMTP, etc.) to the stats
# process. The stats process can later be queried what's going on in
# the system. With imap_stats plugin you can get per-command level
# statistics for IMAP commands.
#
# There are different "zoom levels" you can look at the statistics:
#
# * command: Per-IMAP command
# * session: Per IMAP/POP3 connection
# * user: Per user (all of user's sessions summed up)
# * domain: Per domain (all of domain's users summed up)
# * ip: Per IP address (all sessions from the IP summed up)
# * global: Everything summed up (2.2.16+)
mail_plugins = $mail_plugins stats
protocol imap {
mail_plugins = $mail_plugins imap_stats
}
plugin {
# how often to session statistics (must be set)
stats_refresh = 30 secs
# track per-IMAP command statistics (optional)
stats_track_cmds = yes
}
# You'll also need to give enough permissions for mail processes to be
# able to write to stats-mail fifo. For example if you use a single
# "vmail" user for mail access:
service stats {
fifo_listener stats-mail {
user = vmail
mode = 0600
}
}
# Memory usage configuration
# The stats process attempts to keep memory usage below a specified
# amount. This value is only approximate because of extra overhead
# caused by malloc() itself.
stats_memory_limit = 16 M
# Once the memory limit is reached, oldest statistics are freed from
# memory. Different statistics levels have different timeout limits,
# which are configured in:
stats_command_min_time = 1 mins
stats_domain_min_time = 12 hours
stats_ip_min_time = 12 hours
stats_session_min_time = 15 mins
stats_user_min_time = 1 hours
service stats {
inet_listener {
address = 127.0.0.1
port = 24242
}
}