IBM Support

QRadar: Connections were dropped by the event pipeline

Troubleshooting


Problem

QRadar displays notification "connections were dropped by the event pipeline".

Symptom

A notification in the web user interface is displayed:
[ecs-ec-ingress.ecs-ec-ingress] [TcpSyslog(0.0.0.0/514) Protocol Provider Thread: class
 com.q1labs.semsources.sources.tcpsyslog.TcpSyslogProvider0] com.q1labs.semsources.sources.
tcpsyslog.TcpSyslogProvider: [WARN] [NOT:0000004000][{HOST}/- -] [-/- -]connectionsPerHost[10] 
maximum [10] reached for host [/{LOG SOURCE IDENTIFIER}] ... dropping connection

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"ARM Category":[{"code":"a8m0z000000cwt0AAA","label":"Log Source"}],"ARM Case Number":"TS005057505","Platform":[{"code":"PF016","label":"Linux"}],"Version":"7.4.2;7.5.0"}]

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Document Information

Modified date:
03 October 2024

UID

ibm16417037