prosody-modules
4eb684ab440c
mod_measure_process/mod_measure_process.lua

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mod_measure_process/mod_measure_process.lua @ 4656:4eb684ab440c

mod_spam_reporting: Handle unknown or future report types An unrecognised value in the 'reason' attribute would have caused an error. This change makes it mirror the behavior for the previous XEP version.
author Kim Alvefur <zash@zash.se>
date Wed, 25 Aug 2021 15:05:56 +0200
parent 4554:025cf93acfe9
child 4877:adc6241e5d16
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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025cf93acfe9 mod_measure_process: Provide metrics about the process itself
Jonas Schäfer <jonas@wielicki.name>
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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 module:hook("stats-update", function ()
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61 local count = 0
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62 for _ in lfs.dir("/proc/self/fd") do
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63 count = count + 1
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64 end
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65 open_fds:set(count)
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66
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67 if has_posix then
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68 local ok, soft, hard = posix.getrlimit("NOFILE")
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69 if ok then
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70 max_fds:set(hard)
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71 end
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72 end
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73 end);
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74 end