1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725
//! Client and broker statistics.
//!
//! These statistics are collected automatically by librdkafka when the client
//! is configured with a non-zero `statistics.interval.ms`. They are made
//! available via the [`ClientContext::stats`] callback.
//!
//! Refer to the [librdkafka statistics documentation][librdkafka-stats] for
//! details.
//!
//! [`ClientContext::stats`]: crate::ClientContext::stats
//! [librdkafka-stats]: https://github.com/edenhill/librdkafka/blob/master/STATISTICS.md
use std::collections::HashMap;
use serde::Deserialize;
/// Overall statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct Statistics {
/// The name of the librdkafka handle.
pub name: String,
/// The configured `client.id`.
pub client_id: String,
/// The instance type (producer or consumer).
#[serde(rename = "type")]
pub client_type: String,
/// The current value of librdkafka's internal monotonic clock, in
// microseconds since start.
pub ts: i64,
/// Wall clock time, in seconds since the Unix epoch.
pub time: i64,
/// Time since this client instance was created, in microseconds.
pub age: i64,
/// The number of operations (callbacks, events, etc.) waiting in queue.
pub replyq: i64,
/// The current number of messages in producer queues.
pub msg_cnt: u64,
/// The current total size of messages in producer queues.
pub msg_size: u64,
/// The maximum number of messages allowed in the producer queues.
pub msg_max: u64,
/// The maximum total size of messages allowed in the producer queues.
pub msg_size_max: u64,
/// The total number of requests sent to brokers.
pub tx: i64,
/// The total number of bytes transmitted to brokers.
pub tx_bytes: i64,
/// The total number of responses received from brokers.
pub rx: i64,
/// The total number of bytes received from brokers.
pub rx_bytes: i64,
/// The total number of messages transmitted (produced) to brokers.
pub txmsgs: i64,
/// The total number of bytes transmitted (produced) to brokers.
pub txmsg_bytes: i64,
/// The total number of messages consumed from brokers, not including
/// ignored messages.
pub rxmsgs: i64,
/// The total number of bytes (including framing) consumed from brokers.
pub rxmsg_bytes: i64,
/// Internal tracking of legacy vs. new consumer API state.
pub simple_cnt: i64,
/// Number of topics in the metadata cache.
pub metadata_cache_cnt: i64,
/// Per-broker statistics.
pub brokers: HashMap<String, Broker>,
/// Per-topic statistics.
pub topics: HashMap<String, Topic>,
/// Consumer group statistics.
pub cgrp: Option<ConsumerGroup>,
/// Exactly-once semantics and idempotent producer statistics.
pub eos: Option<ExactlyOnceSemantics>,
}
/// Per-broker statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct Broker {
/// The broker hostname, port, and ID, in the form `HOSTNAME:PORT/ID`.
pub name: String,
/// The broker ID (-1 for bootstraps).
pub nodeid: i32,
/// The broker hostname and port.
pub nodename: String,
/// The broker source (learned, configured, internal, or logical).
pub source: String,
/// The broker state (INIT, DOWN, CONNECT, AUTH, APIVERSION_QUERY,
/// AUTH_HANDSHAKE, UP, UPDATE).
pub state: String,
/// The time since the last broker state change, in microseconds.
pub stateage: i64,
/// The number of requests awaiting transmission to the broker.
pub outbuf_cnt: i64,
/// The number of messages awaiting transmission to the broker.
pub outbuf_msg_cnt: i64,
/// The number of requests in-flight to the broker that are awaiting a
/// response.
pub waitresp_cnt: i64,
/// The number of messages in-flight to the broker that are awaiting a
/// response.
pub waitresp_msg_cnt: i64,
/// The total number of requests sent to the broker.
pub tx: u64,
/// The total number of bytes sent to the broker.
pub txbytes: u64,
/// The total number of transmission errors.
pub txerrs: u64,
/// The total number of request retries.
pub txretries: u64,
/// Microseconds since last socket send, or -1 if no sends yet for the
/// current connection.
pub txidle: i64,
/// The total number of requests that timed out.
pub req_timeouts: u64,
/// The total number of responses received from the broker.
pub rx: u64,
/// The total number of bytes received from the broker.
pub rxbytes: u64,
/// The total number of receive errors.
pub rxerrs: u64,
/// The number of unmatched correlation IDs in response, typically for
/// timed out requests.
pub rxcorriderrs: u64,
/// The total number of partial message sets received. The broker may return
/// partial responses if the full message set could not fit in the remaining
/// fetch response size.
pub rxpartial: u64,
/// Microseconds since last socket receive, or -1 if no receives yet for the
/// current connection.
pub rxidle: i64,
/// Request type counters. The object key is the name of the request type
/// and the value is the number of requests of that type that have been
/// sent.
pub req: HashMap<String, i64>,
/// The total number of decompression buffer size increases.
pub zbuf_grow: u64,
/// The total number of buffer size increases (deprecated and unused).
pub buf_grow: u64,
/// The number of broker thread poll wakeups.
pub wakeups: Option<u64>,
/// The number of connection attempts, including successful and failed
/// attempts, and name resolution failures.
pub connects: Option<i64>,
/// The number of disconnections, whether triggered by the broker, the
/// network, the load balancer, or something else.
pub disconnects: Option<i64>,
/// Rolling window statistics for the internal producer queue latency, in
/// microseconds.
pub int_latency: Option<Window>,
/// Rolling window statistics for the internal request queue latency, in
/// microseconds.
///
/// This is the time between when a request is enqueued on the transmit
/// (outbuf) queue and the time the request is written to the TCP socket.
/// Additional buffering and latency may be incurred by the TCP stack and
/// network.
pub outbuf_latency: Option<Window>,
/// Rolling window statistics for the broker latency/round-trip time,
/// in microseconds.
pub rtt: Option<Window>,
/// Rolling window statistics for the broker throttling time, in
/// milliseconds.
pub throttle: Option<Window>,
/// The partitions that are handled by this broker handle.
pub toppars: HashMap<String, TopicPartition>,
}
/// Rolling window statistics.
///
/// These values are not exact; they are sampled estimates maintained by an
/// HDR histogram in librdkafka.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct Window {
/// The smallest value.
pub min: i64,
/// The largest value.
pub max: i64,
/// The mean value.
pub avg: i64,
/// The sum of all values.
pub sum: i64,
/// The total number of values.
pub cnt: i64,
/// The standard deviation.
pub stddev: i64,
/// The memory size of the underlying HDR histogram.
pub hdrsize: i64,
/// The 50th percentile.
pub p50: i64,
/// The 75th percentile.
pub p75: i64,
/// The 90th percentile.
pub p90: i64,
/// The 95th percentile.
pub p95: i64,
/// The 99th percentile.
pub p99: i64,
/// The 99.99th percentile.
pub p99_99: i64,
/// The number of values not included in the underlying histogram because
/// they were out of range.
pub outofrange: i64,
}
/// A topic and partition specifier.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct TopicPartition {
/// The name of the topic.
pub topic: String,
/// The ID of the partition.
pub partition: i32,
}
/// Per-topic statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct Topic {
/// The name of the topic.
pub topic: String,
/// The age of the client's metadata for this topic, in milliseconds.
pub metadata_age: i64,
/// Rolling window statistics for batch sizes, in bytes.
pub batchsize: Window,
/// Rolling window statistics for batch message counts.
pub batchcnt: Window,
/// Per-partition statistics.
pub partitions: HashMap<i32, Partition>,
}
/// Per-partition statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct Partition {
/// The partition ID.
pub partition: i32,
/// The ID of the broker from which messages are currently being fetched.
pub broker: i32,
/// The broker ID of the leader.
pub leader: i32,
/// Whether the partition is explicitly desired by the application.
pub desired: bool,
/// Whether the partition is not seen in the topic metadata from the broker.
pub unknown: bool,
/// The number of messages waiting to be produced in the first-level queue.
pub msgq_cnt: i64,
/// The number of bytes waiting to be produced in the first-level queue.
pub msgq_bytes: u64,
/// The number of messages ready to be produced in the transmit queue.
pub xmit_msgq_cnt: i64,
/// The number of bytes ready to be produced in the transmit queue.
pub xmit_msgq_bytes: u64,
/// The number of prefetched messages in the fetch queue.
pub fetchq_cnt: i64,
/// The number of bytes in the fetch queue.
pub fetchq_size: u64,
/// The consumer fetch state for this partition (none, stopping, stopped,
/// offset-query, offset-wait, active).
pub fetch_state: String,
/// The current/last logical offset query.
pub query_offset: i64,
/// The next offset to fetch.
pub next_offset: i64,
/// The offset of the last message passed to the application, plus one.
pub app_offset: i64,
/// The offset to be committed.
pub stored_offset: i64,
/// The last committed offset.
pub committed_offset: i64,
/// The last offset for which partition EOF was signaled.
pub eof_offset: i64,
/// The low watermark offset on the broker.
pub lo_offset: i64,
/// The high watermark offset on the broker.
pub hi_offset: i64,
/// The last stable offset on the broker.
pub ls_offset: i64,
/// The difference between `hi_offset` and `committed_offset`.
pub consumer_lag: i64,
/// The difference between `hi_offset` and `stored_offset`.
pub consumer_lag_stored: i64,
/// The total number of messages transmitted (produced).
pub txmsgs: u64,
/// The total number of bytes transmitted (produced).
pub txbytes: u64,
/// The total number of messages consumed, not included ignored messages.
pub rxmsgs: u64,
/// The total bytes consumed.
pub rxbytes: u64,
/// The total number of messages received, for consumers, or the total
/// number of messages produced, for producers.
pub msgs: u64,
/// The number of dropped outdated messages.
pub rx_ver_drops: u64,
/// The current number of messages in flight to or from the broker.
pub msgs_inflight: i64,
/// The next expected acked sequence number, for idempotent producers.
pub next_ack_seq: i64,
/// The next expected errored sequence number, for idempotent producers.
pub next_err_seq: i64,
/// The last acked internal message ID, for idempotent producers.
pub acked_msgid: u64,
}
/// Consumer group manager statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct ConsumerGroup {
/// The local consumer group handler's state.
pub state: String,
/// The time elapsed since the last state change, in milliseconds.
pub stateage: i64,
/// The local consumer group hander's join state.
pub join_state: String,
/// The time elapsed since the last rebalance (assign or revoke), in
/// milliseconds.
pub rebalance_age: i64,
/// The total number of rebalances (assign or revoke).
pub rebalance_cnt: i64,
/// The reason for the last rebalance.
///
/// This string will be empty if no rebalances have occurred.
pub rebalance_reason: String,
/// The partition count for the current assignment.
pub assignment_size: i32,
}
/// Exactly-once semantics statistics.
#[derive(Deserialize, Debug, Default, Clone)]
pub struct ExactlyOnceSemantics {
/// The current idempotent producer state.
pub idemp_state: String,
/// THe time elapsed since the last idempotent producer state change, in
/// milliseconds.
pub idemp_stateage: i64,
/// The current transactional producer state.
pub txn_state: String,
/// The time elapsed since the last transactional producer state change, in
/// milliseconds.
pub txn_stateage: i64,
/// Whether the transactional state allows enqueing (producing) new
/// messages.
pub txn_may_enq: bool,
/// The currently assigned producer ID, or -1.
pub producer_id: i64,
/// The current epoch, or -1.
pub producer_epoch: i64,
/// The number of producer ID assignments.
pub epoch_cnt: i64,
}
#[cfg(test)]
mod tests {
use maplit::hashmap;
use super::*;
#[test]
fn test_statistics() {
let stats: Statistics = serde_json::from_str(EXAMPLE).unwrap();
assert_eq!(stats.name, "rdkafka#producer-1");
assert_eq!(stats.client_type, "producer");
assert_eq!(stats.ts, 1163982743268);
assert_eq!(stats.time, 1589652530);
assert_eq!(stats.replyq, 0);
assert_eq!(stats.msg_cnt, 320);
assert_eq!(stats.msg_size, 9920);
assert_eq!(stats.msg_max, 500000);
assert_eq!(stats.msg_size_max, 1073741824);
assert_eq!(stats.simple_cnt, 0);
assert_eq!(stats.brokers.len(), 1);
let broker = stats.brokers.values().into_iter().collect::<Vec<_>>()[0];
assert_eq!(
broker.req,
hashmap! {
"Produce".to_string() => 31307,
"Offset".to_string() => 0,
"Metadata".to_string() => 2,
"FindCoordinator".to_string() => 0,
"SaslHandshake".to_string() => 0,
"ApiVersion".to_string() => 2,
"InitProducerId".to_string() => 0,
"AddPartitionsToTxn".to_string() => 0,
"AddOffsetsToTxn".to_string() => 0,
"EndTxn".to_string() => 0,
"TxnOffsetCommit".to_string() => 0,
"SaslAuthenticate".to_string() => 0,
}
);
assert_eq!(stats.topics.len(), 1);
}
// Example from https://github.com/edenhill/librdkafka/wiki/Statistics
const EXAMPLE: &'static str = r#"
{
"name": "rdkafka#producer-1",
"client_id": "rdkafka",
"type": "producer",
"ts": 1163982743268,
"time": 1589652530,
"age": 5,
"replyq": 0,
"msg_cnt": 320,
"msg_size": 9920,
"msg_max": 500000,
"msg_size_max": 1073741824,
"simple_cnt": 0,
"metadata_cache_cnt": 1,
"brokers": {
"localhost:9092/0": {
"name": "localhost:9092/0",
"nodeid": 0,
"nodename": "localhost:9092",
"source": "configured",
"state": "UP",
"stateage": 8005652,
"outbuf_cnt": 0,
"outbuf_msg_cnt": 0,
"waitresp_cnt": 1,
"waitresp_msg_cnt": 126,
"tx": 31311,
"txbytes": 463869957,
"txerrs": 0,
"txretries": 0,
"txidle": 5,
"req_timeouts": 0,
"rx": 31310,
"rxbytes": 1753668,
"rxerrs": 0,
"rxcorriderrs": 0,
"rxpartial": 0,
"rxidle": 5,
"zbuf_grow": 0,
"buf_grow": 0,
"wakeups": 131568,
"connects": 1,
"disconnects": 0,
"int_latency": {
"min": 2,
"max": 9193,
"avg": 605,
"sum": 874202325,
"stddev": 1080,
"p50": 319,
"p75": 481,
"p90": 1135,
"p95": 3023,
"p99": 5919,
"p99_99": 9087,
"outofrange": 0,
"hdrsize": 15472,
"cnt": 1443154
},
"outbuf_latency": {
"min": 1,
"max": 308,
"avg": 22,
"sum": 107311,
"stddev": 21,
"p50": 22,
"p75": 29,
"p90": 36,
"p95": 44,
"p99": 111,
"p99_99": 309,
"outofrange": 0,
"hdrsize": 11376,
"cnt": 4740
},
"rtt": {
"min": 94,
"max": 3279,
"avg": 237,
"sum": 1124867,
"stddev": 198,
"p50": 193,
"p75": 245,
"p90": 329,
"p95": 393,
"p99": 1183,
"p99_99": 3279,
"outofrange": 0,
"hdrsize": 13424,
"cnt": 4739
},
"throttle": {
"min": 0,
"max": 0,
"avg": 0,
"sum": 0,
"stddev": 0,
"p50": 0,
"p75": 0,
"p90": 0,
"p95": 0,
"p99": 0,
"p99_99": 0,
"outofrange": 0,
"hdrsize": 17520,
"cnt": 4739
},
"req": {
"Produce": 31307,
"Offset": 0,
"Metadata": 2,
"FindCoordinator": 0,
"SaslHandshake": 0,
"ApiVersion": 2,
"InitProducerId": 0,
"AddPartitionsToTxn": 0,
"AddOffsetsToTxn": 0,
"EndTxn": 0,
"TxnOffsetCommit": 0,
"SaslAuthenticate": 0
},
"toppars": {
"test-0": {
"topic": "test",
"partition": 0
},
"test-1": {
"topic": "test",
"partition": 1
},
"test-2": {
"topic": "test",
"partition": 2
}
}
}
},
"topics": {
"test": {
"topic": "test",
"metadata_age": 7014,
"batchsize": {
"min": 99,
"max": 240276,
"avg": 11871,
"sum": 56260370,
"stddev": 13137,
"p50": 10431,
"p75": 11583,
"p90": 12799,
"p95": 13823,
"p99": 72191,
"p99_99": 240639,
"outofrange": 0,
"hdrsize": 14448,
"cnt": 4739
},
"batchcnt": {
"min": 1,
"max": 6161,
"avg": 304,
"sum": 1442353,
"stddev": 336,
"p50": 267,
"p75": 297,
"p90": 329,
"p95": 353,
"p99": 1847,
"p99_99": 6175,
"outofrange": 0,
"hdrsize": 8304,
"cnt": 4739
},
"partitions": {
"0": {
"partition": 0,
"broker": 0,
"leader": 0,
"desired": false,
"unknown": false,
"msgq_cnt": 845,
"msgq_bytes": 26195,
"xmit_msgq_cnt": 0,
"xmit_msgq_bytes": 0,
"fetchq_cnt": 0,
"fetchq_size": 0,
"fetch_state": "none",
"query_offset": -1001,
"next_offset": 0,
"app_offset": -1001,
"stored_offset": -1001,
"commited_offset": -1001,
"committed_offset": -1001,
"eof_offset": -1001,
"lo_offset": -1001,
"hi_offset": -1001,
"ls_offset": -1001,
"consumer_lag": -1,
"consumer_lag_stored": 0,
"txmsgs": 3950967,
"txbytes": 122479977,
"rxmsgs": 0,
"rxbytes": 0,
"msgs": 3951812,
"rx_ver_drops": 0,
"msgs_inflight": 1067,
"next_ack_seq": 0,
"next_err_seq": 0,
"acked_msgid": 0
},
"1": {
"partition": 1,
"broker": 0,
"leader": 0,
"desired": false,
"unknown": false,
"msgq_cnt": 229,
"msgq_bytes": 7099,
"xmit_msgq_cnt": 0,
"xmit_msgq_bytes": 0,
"fetchq_cnt": 0,
"fetchq_size": 0,
"fetch_state": "none",
"query_offset": -1001,
"next_offset": 0,
"app_offset": -1001,
"stored_offset": -1001,
"commited_offset": -1001,
"committed_offset": -1001,
"eof_offset": -1001,
"lo_offset": -1001,
"hi_offset": -1001,
"ls_offset": -1001,
"consumer_lag": -1,
"consumer_lag_stored": 0,
"txmsgs": 3950656,
"txbytes": 122470336,
"rxmsgs": 0,
"rxbytes": 0,
"msgs": 3952618,
"rx_ver_drops": 0,
"msgs_inflight": 0,
"next_ack_seq": 0,
"next_err_seq": 0,
"acked_msgid": 0
},
"2": {
"partition": 2,
"broker": 0,
"leader": 0,
"desired": false,
"unknown": false,
"msgq_cnt": 1816,
"msgq_bytes": 56296,
"xmit_msgq_cnt": 0,
"xmit_msgq_bytes": 0,
"fetchq_cnt": 0,
"fetchq_size": 0,
"fetch_state": "none",
"query_offset": -1001,
"next_offset": 0,
"app_offset": -1001,
"stored_offset": -1001,
"commited_offset": -1001,
"committed_offset": -1001,
"eof_offset": -1001,
"lo_offset": -1001,
"hi_offset": -1001,
"ls_offset": -1001,
"consumer_lag": -1,
"consumer_lag_stored": 0,
"txmsgs": 3952027,
"txbytes": 122512837,
"rxmsgs": 0,
"rxbytes": 0,
"msgs": 3953855,
"rx_ver_drops": 0,
"msgs_inflight": 0,
"next_ack_seq": 0,
"next_err_seq": 0,
"acked_msgid": 0
},
"-1": {
"partition": -1,
"broker": -1,
"leader": -1,
"desired": false,
"unknown": false,
"msgq_cnt": 0,
"msgq_bytes": 0,
"xmit_msgq_cnt": 0,
"xmit_msgq_bytes": 0,
"fetchq_cnt": 0,
"fetchq_size": 0,
"fetch_state": "none",
"query_offset": -1001,
"next_offset": 0,
"app_offset": -1001,
"stored_offset": -1001,
"commited_offset": -1001,
"committed_offset": -1001,
"eof_offset": -1001,
"lo_offset": -1001,
"hi_offset": -1001,
"ls_offset": -1001,
"consumer_lag": -1,
"consumer_lag_stored": 0,
"txmsgs": 0,
"txbytes": 0,
"rxmsgs": 0,
"rxbytes": 0,
"msgs": 500000,
"rx_ver_drops": 0,
"msgs_inflight": 0,
"next_ack_seq": 0,
"next_err_seq": 0,
"acked_msgid": 0
}
}
}
},
"tx": 31311,
"tx_bytes": 463869957,
"rx": 31310,
"rx_bytes": 1753668,
"txmsgs": 11853650,
"txmsg_bytes": 367463150,
"rxmsgs": 0,
"rxmsg_bytes": 0
}"#;
}