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Tag: EMQX Performance Tuning

EMQX Performance Tuning: Linux Conntrack and MQTT Connections
Jan 18, 2024

EMQX Performance Tuning: Linux Conntrack and MQTT Connections

The connection tracking mechanism in Linux is the foundation of many network applications, it may affect our connection establishment.

EMQX TeamProduct
EMQX Performance Tuning: TCP SYN Queue and Accept Queue
Dec 15, 2023

EMQX Performance Tuning: TCP SYN Queue and Accept Queue

In some situations, even if the total number of MQTT connections on the current server has not reached the maximum limit of file descriptors, the client's connection request still fails, and we will observe the count of Overflowed and SYN Dropped continuously increasing in the OS.

EMQX TeamProduct
EMQX Performance Tuning: Max Connections and File Descriptors
Nov 10, 2023

EMQX Performance Tuning: Max Connections and File Descriptors

While testing the performance of EMQX, if the number of client connections reaches a large number, you may find that EMQX cannot accept more connections. In this article, we will introduce how to modify kernel parameters to increase the number of file descriptors that EMQX can use on Linux.

EMQX TeamProduct