Mercurial > prosody-modules
annotate mod_measure_process/mod_measure_process.lua @ 5553:67152838afbc
mod_http_oauth2: Improve error messages for URI properties
Since there are separate validation checks for URI properties, including
that they should use https, with better and more specific error reporting.
Reverts 'luaPattern' to 'pattern' which is not currently supported by
util.jsonschema, but allows anything that retrieves the schema over http
to validate against it, should they wish to do so.
author | Kim Alvefur <zash@zash.se> |
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date | Sat, 17 Jun 2023 18:15:00 +0200 |
parents | c26f515751af |
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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 |