Not reuse connection between clients. about amqproxy

[carlhoerberg]

With this patch amqproxy is waiting at least 5 seconds before an inactive connection is disconnected:
5f1b845

[artemsheludko1]

@carlhoerberg

[carlhoerberg]

would need a tcpdump of that

[artemsheludko1]

Hi. So I have a php script $connection = new AMQPStreamConnection('amqproxy', 5673, 'guest', 'guest'); $channel = $connection->channel(); $channel->queue_declare( 'email_queue', #queue - Queue names may be up to 255 bytes of UTF-8 characters false, #passive - can use this to check whether an exchange exists without modifying the server state true, #durable, make sure that RabbitMQ will never lose our queue if a crash occurs - the queue will survive a broker restart false, #exclusive - used by only one connection and the queue will be deleted when that connection closes false #auto delete - queue is deleted when last consumer unsubscribes ); $msg = new AMQPMessage( 2, array('delivery_mode' => 2) # make message persistent, so it is not lost if server crashes or quits ); $channel->basic_publish( $msg, #message '', #exchange 'email_queue' #routing key (queue) ); $channel->close(); $connection->close(); I run this php script received on AMQProxy side tcpdump: 09:55:25.891328 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [S], seq 704842676, win 64240, options [mss 1460,sackOK,TS val 1801518153 ecr 0,nop,wscale 7], length 0 09:55:25.891354 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [S.], seq 1720018065, ack 704842677, win 65160, options [mss 1460,sackOK,TS val 853690884 ecr 1801518153,nop,wscale 7], length 0 09:55:25.891379 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [.], ack 1, win 502, options [nop,nop,TS val 1801518154 ecr 853690884], length 0 09:55:25.894955 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 1:9, ack 1, win 502, options [nop,nop,TS val 1801518157 ecr 853690884], length 8 09:55:25.895003 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 9, win 509, options [nop,nop,TS val 853690887 ecr 1801518157], length 0 09:55:25.895114 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 1:223, ack 9, win 509, options [nop,nop,TS val 853690887 ecr 1801518157], length 222 09:55:25.895148 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [.], ack 223, win 501, options [nop,nop,TS val 1801518157 ecr 853690887], length 0 09:55:25.895632 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 9:322, ack 223, win 501, options [nop,nop,TS val 1801518158 ecr 853690887], length 313 09:55:25.895774 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 223:243, ack 322, win 507, options [nop,nop,TS val 853690888 ecr 1801518158], length 20 09:55:25.896222 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 322:342, ack 243, win 501, options [nop,nop,TS val 1801518158 ecr 853690888], length 20 09:55:25.896357 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 342:358, ack 243, win 501, options [nop,nop,TS val 1801518159 ecr 853690888], length 16 09:55:25.896396 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 358, win 507, options [nop,nop,TS val 853690889 ecr 1801518158], length 0 09:55:25.896427 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 243:256, ack 358, win 507, options [nop,nop,TS val 853690889 ecr 1801518158], length 13 09:55:25.898633 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [S], seq 445938247, win 64240, options [mss 1460,sackOK,TS val 2530907637 ecr 0,nop,wscale 7], length 0 09:55:25.898737 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [S.], seq 1526134208, ack 445938248, win 65160, options [mss 1460,sackOK,TS val 3729765860 ecr 2530907637,nop,wscale 7], length 0 09:55:25.898810 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 1, win 502, options [nop,nop,TS val 2530907637 ecr 3729765860], length 0 09:55:25.899046 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 1:9, ack 1, win 502, options [nop,nop,TS val 2530907637 ecr 3729765860], length 8 09:55:25.899063 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 9, win 509, options [nop,nop,TS val 3729765860 ecr 2530907637], length 0 09:55:25.900181 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 358:371, ack 256, win 501, options [nop,nop,TS val 1801518162 ecr 853690889], length 13 09:55:25.904909 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 1:502, ack 9, win 509, options [nop,nop,TS val 3729765866 ecr 2530907637], length 501 09:55:25.904929 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 502, win 501, options [nop,nop,TS val 2530907643 ecr 3729765866], length 0 09:55:25.905071 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 9:269, ack 502, win 501, options [nop,nop,TS val 2530907643 ecr 3729765866], length 260 09:55:25.905476 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 502:522, ack 269, win 507, options [nop,nop,TS val 3729765867 ecr 2530907643], length 20 09:55:25.905571 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 269:289, ack 522, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 20 09:55:25.905598 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 289:305, ack 522, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 16 09:55:25.905642 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 305, win 507, options [nop,nop,TS val 3729765867 ecr 2530907644], length 0 09:55:25.905819 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 522:535, ack 305, win 507, options [nop,nop,TS val 3729765867 ecr 2530907644], length 13 09:55:25.906050 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 305:318, ack 535, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 13 09:55:25.908367 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 535:551, ack 318, win 507, options [nop,nop,TS val 3729765870 ecr 2530907644], length 16 09:55:25.908588 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 256:272, ack 371, win 507, options [nop,nop,TS val 853690901 ecr 1801518162], length 16 09:55:25.909176 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 371:402, ack 272, win 501, options [nop,nop,TS val 1801518171 ecr 853690901], length 31 09:55:25.909315 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 318:349, ack 551, win 501, options [nop,nop,TS val 2530907648 ecr 3729765870], length 31 09:55:25.910335 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 551:583, ack 349, win 507, options [nop,nop,TS val 3729765871 ecr 2530907648], length 32 09:55:25.910556 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 272:304, ack 402, win 507, options [nop,nop,TS val 853690903 ecr 1801518171], length 32 09:55:25.912501 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 402:462, ack 304, win 501, options [nop,nop,TS val 1801518175 ecr 853690903], length 60 09:55:25.912594 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 462:481, ack 304, win 501, options [nop,nop,TS val 1801518175 ecr 853690903], length 19 09:55:25.912634 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 481, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 0 09:55:25.912673 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 349:377, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 28 09:55:25.912728 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 377:400, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 23 09:55:25.912751 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 400:409, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 9 09:55:25.912775 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 304:316, ack 481, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 09:55:25.912804 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 409, win 507, options [nop,nop,TS val 3729765874 ecr 2530907651], length 0 09:55:25.913008 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 481:500, ack 316, win 501, options [nop,nop,TS val 1801518175 ecr 853690905], length 19 09:55:25.913120 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 316:328, ack 500, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 09:55:25.913228 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [F.], seq 328, ack 500, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 0 09:55:25.913345 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [F.], seq 500, ack 329, win 501, options [nop,nop,TS val 1801518176 ecr 853690905], length 0 09:55:25.913354 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 501, win 507, options [nop,nop,TS val 853690906 ecr 1801518176], length 0 09:55:28.867527 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 409:470, ack 583, win 501, options [nop,nop,TS val 2530910606 ecr 3729765874], length 61 09:55:28.869447 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 583:595, ack 470, win 507, options [nop,nop,TS val 3729768831 ecr 2530910606], length 12 09:55:28.869743 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [F.], seq 470, ack 595, win 501, options [nop,nop,TS val 2530910608 ecr 3729768831], length 0 09:55:28.870011 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [R.], seq 595, ack 471, win 507, options [nop,nop,TS val 3729768831 ecr 2530910608], length 0 09:55:31.015442 ARP, Request who-has yoopies_manager.yoopies_default tell 2c62908acb70, length 28 09:55:31.015511 ARP, Request who-has 2c62908acb70 tell yoopies_manager.yoopies_default, length 28 09:55:31.015533 ARP, Reply 2c62908acb70 is-at 02:42:c0:a8:f0:0d (oui Unknown), length 28 09:55:31.015558 ARP, Reply yoopies_manager.yoopies_default is-at 02:42:c0:a8:f0:0b (oui Unknown), length 28

…

----- [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], proto TCP (6), length 60) yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***.***@.,..... 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... 1 packet captured 26 packets received by filter 0 packets dropped by kernel [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], proto TCP (6), length 60) yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***.***@.,..... 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... 1 packet captured 26 packets received by filter 0 packets dropped by kernel And after that connection closes like on the rabbitmq side and on the amqproxy side. But I assume that on the next script exec I will reuse the same tcp connection.

On Wed, Mar 10, 2021 at 9:31 PM Carl Hörberg ***@***.***> wrote: would need a tcpdump of that — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#46 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANS3ZHEU2FFMUA2NZFNDC43TC7CJ3ANCNFSM4YRYMRFQ> .

[artemsheludko1]

Hello. Any updates? On Thu, Mar 11, 2021 at 12:55 PM Artem Sheludko ***@***.***> wrote:

…

Hi. So I have a php script $connection = new AMQPStreamConnection('amqproxy', 5673, 'guest', 'guest'); $channel = $connection->channel(); $channel->queue_declare( 'email_queue', #queue - Queue names may be up to 255 bytes of UTF-8 characters false, #passive - can use this to check whether an exchange exists without modifying the server state true, #durable, make sure that RabbitMQ will never lose our queue if a crash occurs - the queue will survive a broker restart false, #exclusive - used by only one connection and the queue will be deleted when that connection closes false #auto delete - queue is deleted when last consumer unsubscribes ); $msg = new AMQPMessage( 2, array('delivery_mode' => 2) # make message persistent, so it is not lost if server crashes or quits ); $channel->basic_publish( $msg, #message '', #exchange 'email_queue' #routing key (queue) ); $channel->close(); $connection->close(); I run this php script received on AMQProxy side tcpdump: 09:55:25.891328 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [S], seq 704842676, win 64240, options [mss 1460,sackOK,TS val 1801518153 ecr 0,nop,wscale 7], length 0 09:55:25.891354 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [S.], seq 1720018065, ack 704842677, win 65160, options [mss 1460,sackOK,TS val 853690884 ecr 1801518153,nop,wscale 7], length 0 09:55:25.891379 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [.], ack 1, win 502, options [nop,nop,TS val 1801518154 ecr 853690884], length 0 09:55:25.894955 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 1:9, ack 1, win 502, options [nop,nop,TS val 1801518157 ecr 853690884], length 8 09:55:25.895003 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 9, win 509, options [nop,nop,TS val 853690887 ecr 1801518157], length 0 09:55:25.895114 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 1:223, ack 9, win 509, options [nop,nop,TS val 853690887 ecr 1801518157], length 222 09:55:25.895148 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [.], ack 223, win 501, options [nop,nop,TS val 1801518157 ecr 853690887], length 0 09:55:25.895632 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 9:322, ack 223, win 501, options [nop,nop,TS val 1801518158 ecr 853690887], length 313 09:55:25.895774 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 223:243, ack 322, win 507, options [nop,nop,TS val 853690888 ecr 1801518158], length 20 09:55:25.896222 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 322:342, ack 243, win 501, options [nop,nop,TS val 1801518158 ecr 853690888], length 20 09:55:25.896357 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 342:358, ack 243, win 501, options [nop,nop,TS val 1801518159 ecr 853690888], length 16 09:55:25.896396 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 358, win 507, options [nop,nop,TS val 853690889 ecr 1801518158], length 0 09:55:25.896427 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 243:256, ack 358, win 507, options [nop,nop,TS val 853690889 ecr 1801518158], length 13 09:55:25.898633 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [S], seq 445938247, win 64240, options [mss 1460,sackOK,TS val 2530907637 ecr 0,nop,wscale 7], length 0 09:55:25.898737 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [S.], seq 1526134208, ack 445938248, win 65160, options [mss 1460,sackOK,TS val 3729765860 ecr 2530907637,nop,wscale 7], length 0 09:55:25.898810 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 1, win 502, options [nop,nop,TS val 2530907637 ecr 3729765860], length 0 09:55:25.899046 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 1:9, ack 1, win 502, options [nop,nop,TS val 2530907637 ecr 3729765860], length 8 09:55:25.899063 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 9, win 509, options [nop,nop,TS val 3729765860 ecr 2530907637], length 0 09:55:25.900181 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 358:371, ack 256, win 501, options [nop,nop,TS val 1801518162 ecr 853690889], length 13 09:55:25.904909 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 1:502, ack 9, win 509, options [nop,nop,TS val 3729765866 ecr 2530907637], length 501 09:55:25.904929 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 502, win 501, options [nop,nop,TS val 2530907643 ecr 3729765866], length 0 09:55:25.905071 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 9:269, ack 502, win 501, options [nop,nop,TS val 2530907643 ecr 3729765866], length 260 09:55:25.905476 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 502:522, ack 269, win 507, options [nop,nop,TS val 3729765867 ecr 2530907643], length 20 09:55:25.905571 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 269:289, ack 522, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 20 09:55:25.905598 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 289:305, ack 522, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 16 09:55:25.905642 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 305, win 507, options [nop,nop,TS val 3729765867 ecr 2530907644], length 0 09:55:25.905819 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 522:535, ack 305, win 507, options [nop,nop,TS val 3729765867 ecr 2530907644], length 13 09:55:25.906050 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 305:318, ack 535, win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 13 09:55:25.908367 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 535:551, ack 318, win 507, options [nop,nop,TS val 3729765870 ecr 2530907644], length 16 09:55:25.908588 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 256:272, ack 371, win 507, options [nop,nop,TS val 853690901 ecr 1801518162], length 16 09:55:25.909176 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 371:402, ack 272, win 501, options [nop,nop,TS val 1801518171 ecr 853690901], length 31 09:55:25.909315 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 318:349, ack 551, win 501, options [nop,nop,TS val 2530907648 ecr 3729765870], length 31 09:55:25.910335 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 551:583, ack 349, win 507, options [nop,nop,TS val 3729765871 ecr 2530907648], length 32 09:55:25.910556 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 272:304, ack 402, win 507, options [nop,nop,TS val 853690903 ecr 1801518171], length 32 09:55:25.912501 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 402:462, ack 304, win 501, options [nop,nop,TS val 1801518175 ecr 853690903], length 60 09:55:25.912594 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 462:481, ack 304, win 501, options [nop,nop,TS val 1801518175 ecr 853690903], length 19 09:55:25.912634 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 481, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 0 09:55:25.912673 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 349:377, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 28 09:55:25.912728 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 377:400, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 23 09:55:25.912751 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 400:409, ack 583, win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 9 09:55:25.912775 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 304:316, ack 481, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 09:55:25.912804 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [.], ack 409, win 507, options [nop,nop,TS val 3729765874 ecr 2530907651], length 0 09:55:25.913008 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [P.], seq 481:500, ack 316, win 501, options [nop,nop,TS val 1801518175 ecr 853690905], length 19 09:55:25.913120 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [P.], seq 316:328, ack 500, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 09:55:25.913228 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [F.], seq 328, ack 500, win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 0 09:55:25.913345 IP yoopies_manager.yoopies_default.48536 > 2c62908acb70.5673: Flags [F.], seq 500, ack 329, win 501, options [nop,nop,TS val 1801518176 ecr 853690905], length 0 09:55:25.913354 IP 2c62908acb70.5673 > yoopies_manager.yoopies_default.48536: Flags [.], ack 501, win 507, options [nop,nop,TS val 853690906 ecr 1801518176], length 0 09:55:28.867527 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 409:470, ack 583, win 501, options [nop,nop,TS val 2530910606 ecr 3729765874], length 61 09:55:28.869447 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [P.], seq 583:595, ack 470, win 507, options [nop,nop,TS val 3729768831 ecr 2530910606], length 12 09:55:28.869743 IP 2c62908acb70.36904 > yoopies_rabbitmq_1.yoopies_default.5672: Flags [F.], seq 470, ack 595, win 501, options [nop,nop,TS val 2530910608 ecr 3729768831], length 0 09:55:28.870011 IP yoopies_rabbitmq_1.yoopies_default.5672 > 2c62908acb70.36904: Flags [R.], seq 595, ack 471, win 507, options [nop,nop,TS val 3729768831 ecr 2530910608], length 0 09:55:31.015442 ARP, Request who-has yoopies_manager.yoopies_default tell 2c62908acb70, length 28 09:55:31.015511 ARP, Request who-has 2c62908acb70 tell yoopies_manager.yoopies_default, length 28 09:55:31.015533 ARP, Reply 2c62908acb70 is-at 02:42:c0:a8:f0:0d (oui Unknown), length 28 09:55:31.015558 ARP, Reply yoopies_manager.yoopies_default is-at 02:42:c0:a8:f0:0b (oui Unknown), length 28 ----- [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], proto TCP (6), length 60) yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***@***.***,..... 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... 1 packet captured 26 packets received by filter 0 packets dropped by kernel [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], proto TCP (6), length 60) yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***@***.***,..... 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... 1 packet captured 26 packets received by filter 0 packets dropped by kernel And after that connection closes like on the rabbitmq side and on the amqproxy side. But I assume that on the next script exec I will reuse the same tcp connection. On Wed, Mar 10, 2021 at 9:31 PM Carl Hörberg ***@***.***> wrote: > would need a tcpdump of that > > — > You are receiving this because you authored the thread. > Reply to this email directly, view it on GitHub > <#46 (comment)>, > or unsubscribe > <https://github.com/notifications/unsubscribe-auth/ANS3ZHEU2FFMUA2NZFNDC43TC7CJ3ANCNFSM4YRYMRFQ> > . >

[artemsheludko1]

Hello. Any news? On Mon, Mar 15, 2021 at 10:39 AM Artem Sheludko ***@***.***> wrote:

…

Hello. Any updates? On Thu, Mar 11, 2021 at 12:55 PM Artem Sheludko < ***@***.***> wrote: > Hi. So I have a php script > > $connection = new AMQPStreamConnection('amqproxy', 5673, 'guest', 'guest'); > $channel = $connection->channel(); > > $channel->queue_declare( > 'email_queue', #queue - Queue names may be up to 255 bytes of UTF-8 characters > false, #passive - can use this to check whether an exchange exists without modifying the server state > true, #durable, make sure that RabbitMQ will never lose our queue if a crash occurs - the queue will survive a broker restart > false, #exclusive - used by only one connection and the queue will be deleted when that connection closes > false #auto delete - queue is deleted when last consumer unsubscribes > ); > > $msg = new AMQPMessage( > 2, > array('delivery_mode' => 2) # make message persistent, so it is not lost if server crashes or quits > ); > > $channel->basic_publish( > $msg, #message > '', #exchange > 'email_queue' #routing key (queue) > ); > $channel->close(); > $connection->close(); > > I run this php script received on AMQProxy side tcpdump: > > 09:55:25.891328 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [S], seq 704842676, win 64240, options [mss > 1460,sackOK,TS val 1801518153 ecr 0,nop,wscale 7], length 0 > > 09:55:25.891354 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [S.], seq 1720018065, ack > 704842677, win 65160, options [mss 1460,sackOK,TS val 853690884 ecr > 1801518153,nop,wscale 7], length 0 > > 09:55:25.891379 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [.], ack 1, win 502, options [nop,nop,TS val > 1801518154 ecr 853690884], length 0 > > 09:55:25.894955 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 1:9, ack 1, win 502, options [nop,nop,TS > val 1801518157 ecr 853690884], length 8 > > 09:55:25.895003 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [.], ack 9, win 509, options > [nop,nop,TS val 853690887 ecr 1801518157], length 0 > > 09:55:25.895114 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 1:223, ack 9, win > 509, options [nop,nop,TS val 853690887 ecr 1801518157], length 222 > > 09:55:25.895148 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [.], ack 223, win 501, options [nop,nop,TS val > 1801518157 ecr 853690887], length 0 > > 09:55:25.895632 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 9:322, ack 223, win 501, options > [nop,nop,TS val 1801518158 ecr 853690887], length 313 > > 09:55:25.895774 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 223:243, ack 322, > win 507, options [nop,nop,TS val 853690888 ecr 1801518158], length 20 > > 09:55:25.896222 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 322:342, ack 243, win 501, options > [nop,nop,TS val 1801518158 ecr 853690888], length 20 > > 09:55:25.896357 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 342:358, ack 243, win 501, options > [nop,nop,TS val 1801518159 ecr 853690888], length 16 > > 09:55:25.896396 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [.], ack 358, win 507, options > [nop,nop,TS val 853690889 ecr 1801518158], length 0 > > 09:55:25.896427 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 243:256, ack 358, > win 507, options [nop,nop,TS val 853690889 ecr 1801518158], length 13 > > 09:55:25.898633 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [S], seq 445938247, win > 64240, options [mss 1460,sackOK,TS val 2530907637 ecr 0,nop,wscale 7], > length 0 > > 09:55:25.898737 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [S.], seq 1526134208, ack 445938248, win 65160, > options [mss 1460,sackOK,TS val 3729765860 ecr 2530907637,nop,wscale 7], > length 0 > > 09:55:25.898810 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 1, win 502, options > [nop,nop,TS val 2530907637 ecr 3729765860], length 0 > > 09:55:25.899046 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 1:9, ack 1, win > 502, options [nop,nop,TS val 2530907637 ecr 3729765860], length 8 > > 09:55:25.899063 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [.], ack 9, win 509, options [nop,nop,TS val > 3729765860 ecr 2530907637], length 0 > > 09:55:25.900181 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 358:371, ack 256, win 501, options > [nop,nop,TS val 1801518162 ecr 853690889], length 13 > > 09:55:25.904909 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 1:502, ack 9, win 509, options > [nop,nop,TS val 3729765866 ecr 2530907637], length 501 > > 09:55:25.904929 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [.], ack 502, win 501, > options [nop,nop,TS val 2530907643 ecr 3729765866], length 0 > > 09:55:25.905071 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 9:269, ack 502, > win 501, options [nop,nop,TS val 2530907643 ecr 3729765866], length 260 > > 09:55:25.905476 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 502:522, ack 269, win 507, options > [nop,nop,TS val 3729765867 ecr 2530907643], length 20 > > 09:55:25.905571 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 269:289, ack 522, > win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 20 > > 09:55:25.905598 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 289:305, ack 522, > win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 16 > > 09:55:25.905642 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [.], ack 305, win 507, options [nop,nop,TS val > 3729765867 ecr 2530907644], length 0 > > 09:55:25.905819 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 522:535, ack 305, win 507, options > [nop,nop,TS val 3729765867 ecr 2530907644], length 13 > > 09:55:25.906050 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 305:318, ack 535, > win 501, options [nop,nop,TS val 2530907644 ecr 3729765867], length 13 > > 09:55:25.908367 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 535:551, ack 318, win 507, options > [nop,nop,TS val 3729765870 ecr 2530907644], length 16 > > 09:55:25.908588 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 256:272, ack 371, > win 507, options [nop,nop,TS val 853690901 ecr 1801518162], length 16 > > 09:55:25.909176 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 371:402, ack 272, win 501, options > [nop,nop,TS val 1801518171 ecr 853690901], length 31 > > 09:55:25.909315 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 318:349, ack 551, > win 501, options [nop,nop,TS val 2530907648 ecr 3729765870], length 31 > > 09:55:25.910335 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 551:583, ack 349, win 507, options > [nop,nop,TS val 3729765871 ecr 2530907648], length 32 > > 09:55:25.910556 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 272:304, ack 402, > win 507, options [nop,nop,TS val 853690903 ecr 1801518171], length 32 > > 09:55:25.912501 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 402:462, ack 304, win 501, options > [nop,nop,TS val 1801518175 ecr 853690903], length 60 > > 09:55:25.912594 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 462:481, ack 304, win 501, options > [nop,nop,TS val 1801518175 ecr 853690903], length 19 > > 09:55:25.912634 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [.], ack 481, win 507, options > [nop,nop,TS val 853690905 ecr 1801518175], length 0 > > 09:55:25.912673 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 349:377, ack 583, > win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 28 > > 09:55:25.912728 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 377:400, ack 583, > win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 23 > > 09:55:25.912751 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 400:409, ack 583, > win 501, options [nop,nop,TS val 2530907651 ecr 3729765871], length 9 > > 09:55:25.912775 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 304:316, ack 481, > win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 > > 09:55:25.912804 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [.], ack 409, win 507, options [nop,nop,TS val > 3729765874 ecr 2530907651], length 0 > > 09:55:25.913008 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [P.], seq 481:500, ack 316, win 501, options > [nop,nop,TS val 1801518175 ecr 853690905], length 19 > > 09:55:25.913120 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [P.], seq 316:328, ack 500, > win 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 12 > > 09:55:25.913228 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [F.], seq 328, ack 500, win > 507, options [nop,nop,TS val 853690905 ecr 1801518175], length 0 > > 09:55:25.913345 IP yoopies_manager.yoopies_default.48536 > > 2c62908acb70.5673: Flags [F.], seq 500, ack 329, win 501, options > [nop,nop,TS val 1801518176 ecr 853690905], length 0 > > 09:55:25.913354 IP 2c62908acb70.5673 > > yoopies_manager.yoopies_default.48536: Flags [.], ack 501, win 507, options > [nop,nop,TS val 853690906 ecr 1801518176], length 0 > > 09:55:28.867527 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [P.], seq 409:470, ack 583, > win 501, options [nop,nop,TS val 2530910606 ecr 3729765874], length 61 > > 09:55:28.869447 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [P.], seq 583:595, ack 470, win 507, options > [nop,nop,TS val 3729768831 ecr 2530910606], length 12 > > 09:55:28.869743 IP 2c62908acb70.36904 > > yoopies_rabbitmq_1.yoopies_default.5672: Flags [F.], seq 470, ack 595, win > 501, options [nop,nop,TS val 2530910608 ecr 3729768831], length 0 > > 09:55:28.870011 IP yoopies_rabbitmq_1.yoopies_default.5672 > > 2c62908acb70.36904: Flags [R.], seq 595, ack 471, win 507, options > [nop,nop,TS val 3729768831 ecr 2530910608], length 0 > > 09:55:31.015442 ARP, Request who-has yoopies_manager.yoopies_default tell > 2c62908acb70, length 28 > > 09:55:31.015511 ARP, Request who-has 2c62908acb70 tell > yoopies_manager.yoopies_default, length 28 > > 09:55:31.015533 ARP, Reply 2c62908acb70 is-at 02:42:c0:a8:f0:0d (oui > Unknown), length 28 > > 09:55:31.015558 ARP, Reply yoopies_manager.yoopies_default is-at > 02:42:c0:a8:f0:0b (oui Unknown), length 28 > > > ----- > > [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv > > tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length > 262144 bytes > > 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], > proto TCP (6), length 60) > > yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags > [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options > [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 > > 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***@***.***,..... > > 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... > > 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... > > 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... > > 1 packet captured > > 26 packets received by filter > > 0 packets dropped by kernel > > [4] 🐳 → tcpdump -i eth0 port 5673 -c 1 -Xvv > > tcpdump: listening on eth0, link-type EN10MB (Ethernet), snapshot length > 262144 bytes > > 10:00:16.582911 IP (tos 0x0, ttl 64, id 44341, offset 0, flags [DF], > proto TCP (6), length 60) > > yoopies_manager.yoopies_default.48564 > 2c62908acb70.5673: Flags > [S], cksum 0x6199 (incorrect -> 0x364c), seq 4215147984, win 64240, options > [mss 1460,sackOK,TS val 1801809158 ecr 0,nop,wscale 7], length 0 > > 0x0000: 4500 003c ad35 4000 4006 2c1c c0a8 f00b ***@***@***.***,..... > > 0x0010: c0a8 f00d bdb4 1629 fb3e 0dd0 0000 0000 .......).>...... > > 0x0020: a002 faf0 6199 0000 0204 05b4 0402 080a ....a........... > > 0x0030: 6b65 6d06 0000 0000 0103 0307 kem......... > > 1 packet captured > > 26 packets received by filter > > 0 packets dropped by kernel > > > And after that connection closes like on the rabbitmq side and on the > amqproxy side. But I assume that on the next script exec I will reuse the > same tcp connection. > > > > On Wed, Mar 10, 2021 at 9:31 PM Carl Hörberg ***@***.***> > wrote: > >> would need a tcpdump of that >> >> — >> You are receiving this because you authored the thread. >> Reply to this email directly, view it on GitHub >> <#46 (comment)>, >> or unsubscribe >> <https://github.com/notifications/unsubscribe-auth/ANS3ZHEU2FFMUA2NZFNDC43TC7CJ3ANCNFSM4YRYMRFQ> >> . >> >

[ramunasd]

IMHO tcp dump isn't usable at all. Quick googling and I found a quick tutorial how to use tcpdump and capture all packets:
https://danielmiessler.com/study/tcpdump/

So dump everything from relevant port and extract only that part, which drops connection. Put that into file and upload to pastebin or somewhere else. Copy paste does not works as You see :)

[carlhoerberg]

yeah, it's the pcap file with full capturing that's interesting, not the log output: tcpdump -i eth0 -s 0 -w output.pcap

[carlhoerberg]

The pool is shrunk every 5s:

amqproxy/src/amqproxy/server.cr

Lines 87 to 93 in 0cb9ef6

	private def shrink_pool_loop
	loop do
	sleep 5
	@pool.shrink
	# print "\r#{@clients.size} clients\t\t #{@pool.size} upstreams"
	end
	end

amqproxy/src/amqproxy/pool.cr

Lines 35 to 46 in 3e037a4

	def shrink(reason = "Pooled connection closed due to inactivity")
	@pools.each_value do |q|
	while u = q.shift?
	@size -= 1
	begin
	u.close reason
	rescue ex
	@log.error "Problem closing upstream: #{ex.inspect}"
	end
	end
	end
	end

Maybe the timer should be configurable..

[artemsheludko1]

With this patch amqproxy is waiting at least 5 seconds before an inactive connection is disconnected:
5f1b845

I will test.