Mercurial > prosody-modules
annotate mod_measure_active_users/mod_measure_active_users.lua @ 4877:adc6241e5d16
mod_measure_process: Report the enforced limit
The soft limit is what the kernel actually enforces, while the hard
limit is is how far you can change the soft limit without privileges.
Unless the process dynamically adjusts the soft limit, knowing the hard
limit is not as useful as knowing the soft limit.
Reporting the soft limit and the number of in-use FDs allows placing
alerts on expressions like 'process_open_fds / process_max_fds >= 0.95'
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 18 Jan 2022 18:55:20 +0100 |
parents | 1132f2888cd2 |
children | 34b46d157797 |
rev | line source |
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mod_measure_active_users: Calculate active user counts over fixed time periods
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1 local store = module:open_store("lastlog2"); |
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2 |
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3 local measure_d1 = module:measure("active_users_1d", "amount"); |
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4 local measure_d7 = module:measure("active_users_7d", "amount"); |
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5 local measure_d30 = module:measure("active_users_30d", "amount"); |
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6 |
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7 function update_calculations() |
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8 module:log("debug", "Calculating active users"); |
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9 local host_user_sessions = prosody.hosts[module.host].sessions; |
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10 local active_d1, active_d7, active_d30 = 0, 0, 0; |
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11 local now = os.time(); |
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12 for username in store:users() do |
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13 if host_user_sessions[username] then |
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14 -- Active now |
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15 active_d1, active_d7, active_d30 = |
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16 active_d1 + 1, active_d7 + 1, active_d30 + 1; |
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17 else |
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18 local lastlog_data = store:get(username); |
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19 if lastlog_data then |
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20 -- Due to server restarts/crashes/etc. some events |
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21 -- may not always get recorded, so we'll just take the |
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22 -- latest as a sign of last activity |
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23 local last_active = math.max( |
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24 lastlog_data.login and lastlog_data.login.timestamp or 0, |
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25 lastlog_data.logout and lastlog_data.logout.timestamp or 0 |
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26 ); |
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27 if now - last_active < 86400 then |
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28 active_d1 = active_d1 + 1; |
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29 end |
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30 if now - last_active < 86400*7 then |
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31 active_d7 = active_d7 + 1; |
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32 end |
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33 if now - last_active < 86400*30 then |
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34 active_d30 = active_d30 + 1; |
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35 end |
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36 end |
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37 end |
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38 end |
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39 module:log("debug", "Active users (took %ds): %d (24h), %d (7d), %d (30d)", os.time()-now, active_d1, active_d7, active_d30); |
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40 measure_d1(active_d1); |
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41 measure_d7(active_d7); |
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42 measure_d30(active_d30); |
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43 |
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44 return 3600 + (300*math.random()); |
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45 end |
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46 |
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47 module:add_timer(15, update_calculations); |