rpc: provide per message stats for global traffic via new RPC 'getnetmsgstats'

vasild commented at 9:32 am on February 11, 2024: contributor

Introduce a new RPC, getnetmsgstats to retrieve traffic bytes and count of messages possibly broken down by:

direction (sent or received)
network (ipv4, tor, etc)
connection type (outbound-full-relay, block-relay-only, etc)
message type (verack, ping, etc)

Implements: #26337 Add per message stats to getnettotals rpc

Examples:

0{
1  "bytes": 5392756,
2  "count": 32683
3}

 0{
 1  "sendcmpct": {
 2    "bytes": 975,
 3    "count": 31
 4  },
 5  "sendaddrv2": {
 6    "bytes": 816,
 7    "count": 28
 8  },
 9  "headers": {
10    "bytes": 1786,
11    "count": 28
12  },
13  "feefilter": {
14    "bytes": 816,
15    "count": 27
16  },
17  "version": {
18    "bytes": 4843,
19    "count": 37
20  },
21  "ping": {
22    "bytes": 1104,
23    "count": 36
24  },
25  "getaddr": {
26    "bytes": 384,
27    "count": 13
28  },
29  "block": {
30    "bytes": 5128467,
31    "count": 20365
32  },
33  "getheaders": {
34    "bytes": 29436,
35    "count": 28
36  },
37  "pong": {
38    "bytes": 1040,
39    "count": 34
40  },
41  "getdata": {
42    "bytes": 1218925,
43    "count": 20008
44  },
45  "sendheaders": {
46    "bytes": 447,
47    "count": 16
48  },
49  "wtxidrelay": {
50    "bytes": 816,
51    "count": 28
52  },
53  "addrv2": {
54    "bytes": 301161,
55    "count": 25
56  },
57  "verack": {
58    "bytes": 816,
59    "count": 28
60  }
61}

 0{
 1  "i2p": {
 2    "bytes": 1311861,
 3    "count": 8226
 4  },
 5  "onion": {
 6    "bytes": 3932760,
 7    "count": 24272
 8  },
 9  "ipv6": {
10    "bytes": 631265,
11    "count": 3362
12  },
13  "ipv4": {
14    "bytes": 1300106,
15    "count": 7773
16  }
17}

  0{
  1  "recv": {
  2    "i2p": {
  3      "manual": {
  4        "sendcmpct": {
  5          "bytes": 90,
  6          "count": 3
  7        },
  8        "sendaddrv2": {
  9          "bytes": 99,
 10          "count": 3
 11        },
 12        "headers": {
 13          "bytes": 309,
 14          "count": 3
 15        },
 16        "feefilter": {
 17          "bytes": 87,
 18          "count": 3
 19        },
 20        "version": {
 21          "bytes": 408,
 22          "count": 3
 23        },
 24        "ping": {
 25          "bytes": 87,
 26          "count": 3
 27        },
 28        "block": {
 29          "bytes": 432950,
 30          "count": 1794
 31        },
 32        "getheaders": {
 33          "bytes": 3150,
 34          "count": 3
 35        },
 36        "pong": {
 37          "bytes": 87,
 38          "count": 3
 39        },
 40        "wtxidrelay": {
 41          "bytes": 99,
 42          "count": 3
 43        },
 44        "addrv2": {
 45          "bytes": 68508,
 46          "count": 3
 47        },
 48        "verack": {
 49          "bytes": 99,
 50          "count": 3
 51        }
 52      }
 53    },
 54    "onion": {
 55      "block-relay-only": {
 56        "sendcmpct": {
 57          "bytes": 66,
 58          "count": 2
 59        },
 60        "sendaddrv2": {
 61          "bytes": 24,
 62          "count": 1
 63        },
 64        "headers": {
 65          "bytes": 106,
 66          "count": 1
 67        },
 68        "feefilter": {
 69          "bytes": 32,
 70          "count": 1
 71        },
 72        "version": {
 73          "bytes": 126,
 74          "count": 1
 75        },
 76        "ping": {
 77          "bytes": 64,
 78          "count": 2
 79        },
 80        "block": {
 81          "bytes": 478479,
 82          "count": 1896
 83        },
 84        "getheaders": {
 85          "bytes": 1053,
 86          "count": 1
 87        },
 88        "pong": {
 89          "bytes": 64,
 90          "count": 2
 91        },
 92        "sendheaders": {
 93          "bytes": 24,
 94          "count": 1
 95        },
 96        "wtxidrelay": {
 97          "bytes": 24,
 98          "count": 1
 99        },
100        "verack": {
101          "bytes": 24,
102          "count": 1
103        }
104      },
105      "outbound-full-relay": {
106        "sendcmpct": {
107          "bytes": 195,
108          "count": 6
109        },
110        "sendaddrv2": {
111          "bytes": 129,
112          "count": 5
113        },
114        "headers": {
115          "bytes": 527,
116          "count": 5
117        },
118        "feefilter": {
119          "bytes": 157,
120          "count": 5
121        },
122        "version": {
123          "bytes": 639,
124          "count": 5
125        },
126        "ping": {
127          "bytes": 189,
128          "count": 6
129        },
130        "block": {
131          "bytes": 1465688,
132          "count": 5957
133        },
134        "getheaders": {
135          "bytes": 5262,
136          "count": 5
137        },
138        "pong": {
139          "bytes": 189,
140          "count": 6
141        },
142        "sendheaders": {
143          "bytes": 24,
144          "count": 1
145        },
146        "wtxidrelay": {
147          "bytes": 129,
148          "count": 5
149        },
150        "addrv2": {
151          "bytes": 120693,
152          "count": 9
153        },
154        "verack": {
155          "bytes": 129,
156          "count": 5
157        }
158      }
159    },
160    "ipv6": {
161      "manual": {
162        "sendcmpct": {
163          "bytes": 120,
164          "count": 4
165        },
166        "sendaddrv2": {
167          "bytes": 132,
168          "count": 4
169        },
170        "headers": {
171          "bytes": 412,
172          "count": 4
173        },
174        "feefilter": {
175          "bytes": 116,
176          "count": 4
177        },
178        "version": {
179          "bytes": 544,
180          "count": 4
181        },
182        "ping": {
183          "bytes": 116,
184          "count": 4
185        },
186        "block": {
187          "bytes": 138074,
188          "count": 583
189        },
190        "getheaders": {
191          "bytes": 4200,
192          "count": 4
193        },
194        "pong": {
195          "bytes": 116,
196          "count": 4
197        },
198        "wtxidrelay": {
199          "bytes": 132,
200          "count": 4
201        },
202        "addrv2": {
203          "bytes": 93436,
204          "count": 4
205        },
206        "verack": {
207          "bytes": 132,
208          "count": 4
209        }
210      },
211      "outbound-full-relay": {
212        "version": {
213          "bytes": 126,
214          "count": 1
215        }
216      }
217    },
218    "ipv4": {
219      "outbound-full-relay": {
220        "sendcmpct": {
221          "bytes": 66,
222          "count": 2
223        },
224        "sendaddrv2": {
225          "bytes": 24,
226          "count": 1
227        },
228        "headers": {
229          "bytes": 106,
230          "count": 1
231        },
232        "feefilter": {
233          "bytes": 32,
234          "count": 1
235        },
236        "version": {
237          "bytes": 252,
238          "count": 2
239        },
240        "ping": {
241          "bytes": 32,
242          "count": 1
243        },
244        "block": {
245          "bytes": 313988,
246          "count": 1255
247        },
248        "getheaders": {
249          "bytes": 1053,
250          "count": 1
251        },
252        "pong": {
253          "bytes": 32,
254          "count": 1
255        },
256        "sendheaders": {
257          "bytes": 24,
258          "count": 1
259        },
260        "wtxidrelay": {
261          "bytes": 24,
262          "count": 1
263        },
264        "addrv2": {
265          "bytes": 40,
266          "count": 1
267        },
268        "verack": {
269          "bytes": 24,
270          "count": 1
271        }
272      }
273    }
274  },
275  "sent": {
276    "i2p": {
277      "manual": {
278        "sendcmpct": {
279          "bytes": 90,
280          "count": 3
281        },
282        "sendaddrv2": {
283          "bytes": 99,
284          "count": 3
285        },
286        "headers": {
287          "bytes": 66,
288          "count": 3
289        },
290        "feefilter": {
291          "bytes": 87,
292          "count": 3
293        },
294        "version": {
295          "bytes": 544,
296          "count": 4
297        },
298        "ping": {
299          "bytes": 87,
300          "count": 3
301        },
302        "getaddr": {
303          "bytes": 99,
304          "count": 3
305        },
306        "getheaders": {
307          "bytes": 3150,
308          "count": 3
309        },
310        "pong": {
311          "bytes": 87,
312          "count": 3
313        },
314        "getdata": {
315          "bytes": 105382,
316          "count": 1789
317        },
318        "sendheaders": {
319          "bytes": 99,
320          "count": 3
321        },
322        "wtxidrelay": {
323          "bytes": 99,
324          "count": 3
325        },
326        "verack": {
327          "bytes": 99,
328          "count": 3
329        }
330      }
331    },
332    "onion": {
333      "block-relay-only": {
334        "sendcmpct": {
335          "bytes": 33,
336          "count": 1
337        },
338        "sendaddrv2": {
339          "bytes": 24,
340          "count": 1
341        },
342        "headers": {
343          "bytes": 25,
344          "count": 1
345        },
346        "version": {
347          "bytes": 127,
348          "count": 1
349        },
350        "ping": {
351          "bytes": 64,
352          "count": 2
353        },
354        "getheaders": {
355          "bytes": 1053,
356          "count": 1
357        },
358        "pong": {
359          "bytes": 64,
360          "count": 2
361        },
362        "getdata": {
363          "bytes": 115932,
364          "count": 1884
365        },
366        "sendheaders": {
367          "bytes": 24,
368          "count": 1
369        },
370        "wtxidrelay": {
371          "bytes": 24,
372          "count": 1
373        },
374        "verack": {
375          "bytes": 24,
376          "count": 1
377        }
378      },
379      "outbound-full-relay": {
380        "sendcmpct": {
381          "bytes": 162,
382          "count": 5
383        },
384        "sendaddrv2": {
385          "bytes": 129,
386          "count": 5
387        },
388        "headers": {
389          "bytes": 122,
390          "count": 5
391        },
392        "feefilter": {
393          "bytes": 157,
394          "count": 5
395        },
396        "version": {
397          "bytes": 771,
398          "count": 6
399        },
400        "ping": {
401          "bytes": 221,
402          "count": 7
403        },
404        "getaddr": {
405          "bytes": 129,
406          "count": 5
407        },
408        "getheaders": {
409          "bytes": 5262,
410          "count": 5
411        },
412        "pong": {
413          "bytes": 189,
414          "count": 6
415        },
416        "getdata": {
417          "bytes": 363478,
418          "count": 5932
419        },
420        "sendheaders": {
421          "bytes": 129,
422          "count": 5
423        },
424        "wtxidrelay": {
425          "bytes": 129,
426          "count": 5
427        },
428        "addrv2": {
429          "bytes": 231,
430          "count": 4
431        },
432        "verack": {
433          "bytes": 129,
434          "count": 5
435        }
436      }
437    },
438    "ipv6": {
439      "manual": {
440        "sendcmpct": {
441          "bytes": 120,
442          "count": 4
443        },
444        "sendaddrv2": {
445          "bytes": 132,
446          "count": 4
447        },
448        "headers": {
449          "bytes": 88,
450          "count": 4
451        },
452        "feefilter": {
453          "bytes": 116,
454          "count": 4
455        },
456        "version": {
457          "bytes": 544,
458          "count": 4
459        },
460        "ping": {
461          "bytes": 116,
462          "count": 4
463        },
464        "getaddr": {
465          "bytes": 132,
466          "count": 4
467        },
468        "getheaders": {
469          "bytes": 4200,
470          "count": 4
471        },
472        "pong": {
473          "bytes": 116,
474          "count": 4
475        },
476        "getdata": {
477          "bytes": 35492,
478          "count": 584
479        },
480        "sendheaders": {
481          "bytes": 99,
482          "count": 3
483        },
484        "wtxidrelay": {
485          "bytes": 132,
486          "count": 4
487        },
488        "verack": {
489          "bytes": 132,
490          "count": 4
491        }
492      },
493      "outbound-full-relay": {
494        "version": {
495          "bytes": 254,
496          "count": 2
497        }
498      }
499    },
500    "ipv4": {
501      "outbound-full-relay": {
502        "sendcmpct": {
503          "bytes": 33,
504          "count": 1
505        },
506        "sendaddrv2": {
507          "bytes": 24,
508          "count": 1
509        },
510        "headers": {
511          "bytes": 25,
512          "count": 1
513        },
514        "feefilter": {
515          "bytes": 32,
516          "count": 1
517        },
518        "version": {
519          "bytes": 508,
520          "count": 4
521        },
522        "ping": {
523          "bytes": 32,
524          "count": 1
525        },
526        "getaddr": {
527          "bytes": 24,
528          "count": 1
529        },
530        "getheaders": {
531          "bytes": 1053,
532          "count": 1
533        },
534        "pong": {
535          "bytes": 32,
536          "count": 1
537        },
538        "getdata": {
539          "bytes": 76531,
540          "count": 1231
541        },
542        "sendheaders": {
543          "bytes": 24,
544          "count": 1
545        },
546        "wtxidrelay": {
547          "bytes": 24,
548          "count": 1
549        },
550        "verack": {
551          "bytes": 24,
552          "count": 1
553        }
554      }
555    }
556  }
557}

Previous incarnations of this: #27534 rpc: add ‘getnetmsgstats’, new rpc to view network message statistics (Thank you, @satsie!) #28926 rpc: add ‘getnetmsgstats’ RPC (Thank you, @willcl-ark!)

DrahtBot commented at 9:32 am on February 11, 2024: contributor

The following sections might be updated with supplementary metadata relevant to reviewers and maintainers.

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For detailed information about the code coverage, see the test coverage report.

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If your review is incorrectly listed, please react with 👎 to this comment and the bot will ignore it on the next update.

Conflicts

Reviewers, this pull request conflicts with the following ones:

#30988 (Split CConnman by vasild)
#30951 (net: option to disallow v1 connection on ipv4 and ipv6 peers by stratospher)
#28521 (net, net_processing: additional and consistent disconnect logging by Sjors)

If you consider this pull request important, please also help to review the conflicting pull requests. Ideally, start with the one that should be merged first.

DrahtBot added the label RPC/REST/ZMQ on Feb 11, 2024

DrahtBot added the label CI failed on Feb 11, 2024

DrahtBot commented at 10:51 am on February 11, 2024: contributor

🚧 At least one of the CI tasks failed. Make sure to run all tests locally, according to the documentation.

Possibly this is due to a silent merge conflict (the changes in this pull request being incompatible with the current code in the target branch). If so, make sure to rebase on the latest commit of the target branch.

Leave a comment here, if you need help tracking down a confusing failure.

Debug: https://github.com/bitcoin/bitcoin/runs/21448984768

vasild force-pushed on Feb 11, 2024

DrahtBot removed the label CI failed on Feb 11, 2024

epiccurious commented at 10:26 pm on February 11, 2024: contributor

Concept ACK 91c90d759503aa3fa15b330bba2148698cdc271d.

DrahtBot added the label CI failed on Mar 12, 2024

DrahtBot commented at 2:24 pm on April 4, 2024: contributor

Needs rebase if still relevant

achow101 requested review from mzumsande on Apr 9, 2024

0xB10C commented at 4:20 pm on April 9, 2024: contributor

just fyi as this came up: You could count up message stats with the inbound and outbound message tracepoints. However, this does only gives you stats from the points on where you start hooking into the tracepoints, might not be as user friendly (RPC is easier to use than the tracepoints), and the tracepoints currently only work on Linux.

While I personally don’t need it, I see why some node operators need traffic statistics. E.g. How much of my (limited monthly) traffic is used up by inbound connections?

DrahtBot marked this as a draft on Apr 23, 2024

DrahtBot commented at 6:28 am on April 23, 2024: contributor

Converted to draft due to failing CI and inactivity

vasild force-pushed on May 9, 2024

vasild commented at 1:40 pm on May 9, 2024: contributor

91c90d7595...6bfda84b92: rebase, pick changes from #29421 and adjust the newly added test.

DrahtBot removed the label CI failed on May 9, 2024

achow101 referenced this in commit 6c13b1375f on May 21, 2024

DrahtBot added the label Needs rebase on May 21, 2024

vasild force-pushed on May 23, 2024

vasild commented at 9:51 am on May 23, 2024: contributor

6bfda84b92...b5189f543c: rebase due to conflicts (part of this PR was merged via #29421)

vasild marked this as ready for review on May 23, 2024

DrahtBot removed the label Needs rebase on May 23, 2024

vasild force-pushed on May 23, 2024

DrahtBot added the label CI failed on May 23, 2024

DrahtBot removed the label CI failed on May 23, 2024

DrahtBot added the label Needs rebase on Aug 13, 2024

vasild force-pushed on Sep 3, 2024

vasild commented at 10:30 am on September 3, 2024: contributor

68dfd4270c...f85814052d: rebase due to conflicts and to pick CMake

DrahtBot removed the label Needs rebase on Sep 3, 2024

DrahtBot added the label Needs rebase on Sep 19, 2024

vasild force-pushed on Sep 30, 2024

vasild commented at 10:59 am on September 30, 2024: contributor

f85814052d...a8e531f92f: rebase due to conflicts

DrahtBot removed the label Needs rebase on Sep 30, 2024

in src/rpc/net.cpp:614 in a8e531f92f outdated

609+
610+    auto Add = [](UniValue& target, const std::string& key, const UniValue& val) {
611+        if (val.empty()) {
612+            return;
613+        }
614+        if (key == "") {

jonatack commented at 10:27 pm on October 10, 2024:

0        if (key.empty()) {

vasild commented at 11:21 am on October 28, 2024:

Done

in test/functional/rpc_net.py:219 in a8e531f92f outdated

214+        assert_equal(len(node0.getpeerinfo()), 0)
215+
216+        # In v2 getnettotals counts also bytes that are not accounted at any message (the v2 handshake).
217+        # Also the v2 handshake's size could vary.
218+        if not self.options.v2transport:
219+            self.log.info("Compare byte count getnetmsgstats vs getnettotals")

jonatack commented at 10:38 pm on October 10, 2024:

Suggest making all the added test logging after “Test getnetmsgstats” debug level rather than info.

0            self.log.debug("Compare byte count getnetmsgstats vs getnettotals")

vasild commented at 11:21 am on October 28, 2024:

Done

in src/rpc/net.cpp:662 in a8e531f92f outdated

657+        "Results may optionally be aggregated.\n",
658+        /*args=*/
659+        {RPCArg{
660+            /*name=*/"aggregate_by",
661+            /*type=*/RPCArg::Type::ARR,
662+            /*fallback=*/RPCArg::DefaultHint{"empty (no aggregation)"},

jonatack commented at 10:40 pm on October 10, 2024:

nit, this prints as:

(json array, optional, default=empty (no aggregation)) An array of keywords for aggregating the results.

Perhaps avoid the double braces with

(json array, optional, default=empty, no aggregation) An array of keywords for aggregating the results.

0            /*fallback=*/RPCArg::DefaultHint{"empty, no aggregation"},

vasild commented at 11:21 am on October 28, 2024:

Done

in test/functional/rpc_net.py:262 in a8e531f92f outdated

257+                            "sendaddrv2": {"bytes": 33 if self.options.v2transport else 24, "count": 1},
258+                            "sendcmpct": {"bytes": 30 if self.options.v2transport else 33, "count": 1},
259+                            "sendheaders": {"bytes": 33 if self.options.v2transport else 24, "count": 1},
260+                            "verack": {"bytes": 33 if self.options.v2transport else 24, "count": 1},
261+                            "version": {"bytes": 147 if self.options.v2transport else 138, "count": 1},
262+                            "wtxidrelay": {"bytes": 33 if self.options.v2transport else 24, "count": 1},

jonatack commented at 1:45 pm on October 11, 2024:

for lines 233-262, it might be more efficient to replace all of these if self.options.v2transport conditionals with just one (and if v1 is ever removed, doing so would be a cleaner diff)

vasild commented at 11:20 am on October 28, 2024:

Done

in src/net.h:728 in a8e531f92f outdated

723+    // Arrays are used so that this can be accessed from multiple threads without a mutex protection.
724+    std::array<std::array<std::array<std::array<BytesAndCount, ALL_NET_MESSAGE_TYPES.size() + 1>,
725+                                     NUM_CONNECTION_TYPES>,
726+                          NET_MAX>,
727+               NUM_DIRECTIONS>
728+        m_data;

jonatack commented at 1:45 pm on October 11, 2024:

I’m confused by the formatting here.

satsie commented at 6:42 pm on October 11, 2024:

The thinking behind this is because it is a 4D array, all the nesting required to create it can be a headache to look at. Lines 725 - 727 are the array sizes, the second arguments needed for std::array creation. Each one of these lines up with the std::array they are part of.

For example, NUM_DIRECTIONS finishes the declaration off the parent level std::array that all the others are nested in. For that reason, NUM_DIRECTIONS lines up with the space after that array’s opening <.

Hope that made some sense! Open to hearing any suggestions on how to make this easier to read.

in src/net.h:662 in a8e531f92f outdated

655@@ -656,6 +656,84 @@ class V2Transport final : public Transport
656     Info GetInfo() const noexcept override EXCLUSIVE_LOCKS_REQUIRED(!m_recv_mutex);
657 };
658 
659+/**
660+ * Network traffic (bytes and number of messages). Split by direction, network, connection type and message type.
661+ */
662+class NetStats

jonatack commented at 1:49 pm on October 11, 2024:

Would there be any benefit to moving this class outside of net.{h,cpp}? It’s quite a lot of code.

(Though, much of its verbosity is the formatting style used that often reads top-to-bottom rather than left-to-right. I prefer the latter.)

vasild commented at 11:19 am on October 28, 2024:

No opinion.

in src/net.cpp:3779 in a8e531f92f outdated

3809+    case 3: return ConnectionType::FEELER;
3810+    case 4: return ConnectionType::BLOCK_RELAY;
3811+    case 5: return ConnectionType::ADDR_FETCH;
3812+    }
3813+    assert(false);
3814+}

jonatack commented at 1:52 pm on October 11, 2024:

Would it make sense to put these 2 ConnectionType utility methods in node/connection_types.{h,cpp} where they could be more widely used?

vasild commented at 11:17 am on October 28, 2024:

These are to/from “index”. By “index” here I mean the index in some array that is private in NetStats. They are private methods in NetStats.

Not sure exposing those to the outside would be useful. Unless to imply a broader meaning in “index”, something like: “a zero based number without gaps”. E.g. if there are 3 enums, then each one of them uniquely maps to one of the numbers 0, 1, 2. Would that be useful to some other code, outside of NetStats?

in src/net.cpp:3753 in a8e531f92f outdated

3783+    case 4: return NET_I2P;
3784+    case 5: return NET_CJDNS;
3785+    case 6: return NET_INTERNAL;
3786+    }
3787+    assert(false);
3788+}

jonatack commented at 1:54 pm on October 11, 2024:

Note to self, these 2 Network methods might be candidates for extraction in #27385.

vasild commented at 11:16 am on October 28, 2024:

See #29418 (review)

jonatack commented at 1:54 pm on October 11, 2024: member

Lightly tested, a few initial questions/comments. (Edit: I wonder if the code can be a bit less; it seems quite verbose.)

net: count traffic bytes and number of messages globally

Before this change only per-peer stats were gathered. They
are lost when the peer disconnects.

So, collect the traffic stats globally in `CConnman`, broken down by
* direction (sent or received, (2))
* network of the peer (IPv4, IPv6, Tor, I2P, CJDNS (5))
* connection type (inbound, full outbound, feeler, etc, (6))
* message type (verack, ping, etc, (36))

6c3c87a348

rpc: visualize global CConnman stats in a new RPC getnetmsgstats

Introduce a new RPC `getnetmsgstats` that renders the global traffic
stats from `CConnman`.

Co-authored-by: Vasil Dimov <vd@FreeBSD.org>

0cc597878c

rpc: make it possible to aggregate the result in getnetmsgstats

Aggregation can be by either one of direction, network, connection type
or message type. For example if the following

```
{
    "ipv4": { "ping": 3 },
    "ipv6": { "ping": 4 }
}
```

is aggregated by network, then the result will be

```
{
    "ping": 7
}
```

d54afcdf68

test: add functional tests for the new getnetmsgstats RPC

Co-authored-by: Vasil Dimov <vd@FreeBSD.org>

f42561e667

vasild force-pushed on Oct 28, 2024

vasild commented at 11:06 am on October 28, 2024: contributor

a8e531f92f...f42561e667: rebase and address suggestions

rpc: provide per message stats for global traffic via new RPC ‘getnetmsgstats’ #29418

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