Mercurial > prosody-modules
annotate mod_measure_process/mod_measure_process.lua @ 4895:2542fd80cd15
mod_turn_external: Fix type of config option (thanks mirux)
There was a separate boolean option to enable TLS before, but it was
merged with the port number option and it seems the typed API interface
got confused.
Backport of trunk rev aa7a8aa64d3f
author | Kim Alvefur <zash@zash.se> |
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date | Tue, 15 Feb 2022 21:51:52 +0100 |
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mod_measure_process: Provide metrics about the process itself
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1 module:set_global() |
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2 |
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3 local get_cpu_time = os.clock |
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4 |
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5 local custom_metric = require "core.statsmanager".metric |
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6 local cpu_time = custom_metric( |
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7 "counter", "process_cpu", "seconds", |
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8 "CPU time used by Prosody as reported by clock(3)." |
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9 ):with_labels() |
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10 |
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11 local lfs = require "lfs" |
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12 |
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13 module:hook("stats-update", function () |
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14 cpu_time:set(get_cpu_time()) |
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15 end); |
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16 |
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17 if lfs.attributes("/proc/self/statm", "mode") == "file" then |
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18 local pagesize = module:get_option_number("memory_pagesize", 4096); -- getconf PAGESIZE |
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19 |
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20 local vsz = custom_metric( |
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21 "gauge", "process_virtual_memory", "bytes", |
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22 "Virtual memory size in bytes." |
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23 ):with_labels() |
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24 local rss = custom_metric( |
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25 "gauge", "process_resident_memory", "bytes", |
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26 "Resident memory size in bytes." |
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27 ):with_labels() |
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28 |
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29 module:hook("stats-update", function () |
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30 local statm, err = io.open("/proc/self/statm"); |
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31 if not statm then |
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32 module:log("error", tostring(err)); |
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33 return; |
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34 end |
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35 -- virtual memory (caches, opened librarys, everything) |
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36 vsz:set(statm:read("*n") * pagesize); |
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37 -- resident set size (actually used memory) |
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38 rss:set(statm:read("*n") * pagesize); |
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39 statm:close(); |
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40 end); |
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41 end |
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42 |
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43 if lfs.attributes("/proc/self/fd", "mode") == "directory" then |
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44 local open_fds = custom_metric( |
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45 "gauge", "process_open_fds", "", |
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46 "Number of open file descriptors." |
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47 ):with_labels() |
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48 |
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49 local has_posix, posix = pcall(require, "util.pposix") |
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50 local max_fds |
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51 if has_posix then |
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52 max_fds = custom_metric( |
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53 "gauge", "process_max_fds", "", |
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54 "Maximum number of open file descriptors" |
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55 ):with_labels() |
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56 else |
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57 module:log("warn", "not reporting maximum number of file descriptors because mod_posix is not available") |
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58 end |
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59 |
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60 local function limit2num(limit) |
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61 if limit == "unlimited" then |
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62 return math.huge |
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63 end |
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64 return limit |
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65 end |
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66 |
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67 module:hook("stats-update", function () |
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68 local count = 0 |
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69 for _ in lfs.dir("/proc/self/fd") do |
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70 count = count + 1 |
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71 end |
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72 open_fds:set(count) |
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73 |
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74 if has_posix then |
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75 local ok, soft, hard = posix.getrlimit("NOFILE") |
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76 if ok then |
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77 max_fds:set(limit2num(soft or hard)); |
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78 end |
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79 end |
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80 end); |
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81 end |