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  1. ZABBIX BUGS AND ISSUES
  2. ZBX-15802

Sending configuration data from zabbix server to a passive proxy via site-2-site vpn with datalen above ~67.000 failed

    Details

    • Type: Problem report
    • Status: Closed
    • Priority: Major
    • Resolution: Won't fix
    • Affects Version/s: 4.0.5
    • Fix Version/s: None
    • Component/s: Proxy (P), Server (S)
    • Labels:
      None
    • Environment:
      CentOS Linux release 7.6.1810 (Core), 3.10.0-957.5.1.el7.x86_64; Zabbix 4.0.5 (server and proxy), mariadb-5.5.60-1.el7_5.x86_64

      Description

      Zabbix Server connected via a site-2-site vpn (including port nat) to a passive (remote zabbix-proxy.

      Everything works fine...

      • Proxy Heartbeat
      • Auto Discovery Server
      • Sending Configuration
      • Collecting Data

      ...until we increase the number of items collected.

      If we reach a limit of about 64k datalen the configuration couldn't be send and the proxy heartbeat stop working.

      Summary of logfile (time is not exactly syncronised between zabbix-server and proxy!)

      Zabbix-Server: 5120:20190311:151441.642 sending configuration data to proxy "PROXY_NAME" at "127.0.0.1", datalen 67363

      Zabbix-Proxy: 6497:20190311:151717.886 received configuration data from server at "X.X.X.X", datalen 67363
      -> everything is fine.

       

      After increasing the items:

      Zabbix-Server: 5120:20190311:151541.650 sending configuration data to proxy "PROXY_NAME" at "127.0.0.1", datalen 92069

      Zabbix-Server: 5120:20190311:152041.650 cannot send configuration data to proxy "PROXY_NAME" at "127.0.0.1": ZBX_TCP_READ() timed out

      Zabbix-Proxy: 6501:20190311:152357.648 cannot send proxy data to server at "X.X.X.X": ZBX_TCP_READ() timed out

      -> no transfer possible.

       

      It looks similar to bug ZBX-13245 (packet fragmentation).

       

       

       

       

       

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            • Assignee:
              zabbix.support Zabbix Support Team
              Reporter:
              sw040311 Stephan Wimmer
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              Dates

              • Created:
                Updated:
                Resolved: