URL: https://linuxfr.org/forums/linux-debian-ubuntu/posts/ubuntu-identifier-probleme-connexion-qui-saute
Title: [Ubuntu] identifier problème connexion qui saute
Authors: voxdemonix
Date: 2019年05月13日T14:18:49+02:00
License: CC By-SA
Tags: network
Score: 0
Environ 1 a 3 fois par jours la connexion d'un de mes odroid-xu4 saute. Système Ubuntu-Minimal 18.04 (ARM).
Le soucis est détecté par HaProxy ("_Layer4 timeout_" ou "_Layer7 timeout_") et ne semble pas durer plus de 1-3 secondes. Par contre rien de spécial ne semble indiqué dans les fichiers logs.
L'odroid est joignable via connexion LAN et via tunneling. Hors le logiciel qui gère le tunneling n'indique rien dans ses logs aux heures ou HaProxy détecte les coupures.
Ca ne semble pas être :
- un reboot
- un soucis de câble
- un problème d'alim
Auriez-vous svp une piste afin de rechercher l'origine du problème ?
Voici un exemple de logs d'HaProxy lors des coupures (le status down indique deux échecs du healthcheck à moins d'une seconde d'intervalle):
```
May 13 03:17:57 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is DOWN, reason: Layer4 timeout, check duration: 5000ms. 1 active and 1 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
May 13 03:17:57 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is DOWN, reason: Layer4 timeout, check duration: 5000ms. 1 active and 1 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
May 13 03:18:02 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 11ms. 1 active and 2 backup servers online. 0 sessions requeued, 0 total in queue.
May 13 03:18:02 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 11ms. 1 active and 2 backup servers online. 0 sessions requeued, 0 total in queue.
May 13 13:27:59 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is DOWN, reason: Layer7 timeout, check duration: 5000ms. 1 active and 1 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
May 13 13:27:59 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is DOWN, reason: Layer7 timeout, check duration: 5000ms. 1 active and 1 backup servers left. 0 sessions active, 0 requeued, 0 remaining in queue.
May 13 13:27:59 HaProxyServerName haproxy[742]: Server my_wiki/odroid1.LAN is DOWN, reason: Layer7 timeout, check duration: 5001ms. 0 active and 1 backup servers left. Running on backup. 1 sessions active, 0 requeued, 0 remaining in queue.
May 13 13:27:59 HaProxyServerName haproxy[742]: Server my_wiki/odroid1.LAN is DOWN, reason: Layer7 timeout, check duration: 5001ms. 0 active and 1 backup servers left. Running on backup. 1 sessions active, 0 requeued, 0 remaining in queue.
May 13 13:28:05 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 18ms. 0 active and 2 backup servers online. Running on backup. 0 sessions requeued, 0 total in queue.
May 13 13:28:05 HaProxyServerName haproxy[742]: Backup Server my_wiki/odroid1.tunneling is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 18ms. 0 active and 2 backup servers online. Running on backup. 0 sessions requeued, 0 total in queue.
May 13 13:28:05 HaProxyServerName haproxy[742]: Server my_wiki/odroid1.LAN is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 37ms. 1 active and 2 backup servers online. 0 sessions requeued, 0 total in queue.
May 13 13:28:05 HaProxyServerName haproxy[742]: Server my_wiki/odroid1.LAN is UP, reason: Layer7 check passed, code: 204, info: "HTTP status check returned code 204", check duration: 37ms. 1 active and 2 backup servers online. 0 sessions requeued, 0 total in queue.
```
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