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Log Reference

S9300, S9300E, and S9300X V200R010C00

This document provides the explanations, causes, and recommended actions of logs on the product.
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SOCKET/4/EXCEEDMAXQLEN:The number of messages in the asynchronous message queue was greater than the message upper limit. (Time=[ULONG], TaskName=[STRING], TaskId=[ULONG], SocketId=[ULONG], ErrorCode=[LONG])


The number of messages in the asynchronous message queue exceeded the defined upper limit.


Parameter Name Parameter Meaning
Time indicates the time when the log is generated.
TaskName indicates the task name.
TaskId indicates the task ID.
SocketId indicates the socket ID.
ErrorCode indicates the error code, that is, -8.

Possible Causes

Each asynchronous socket has a queue to receive messages. This log indicates that the message queue was full and no new message could be received. The cause is that the speed in which the CPU read messages was slower than the speed to generate messages. In most cases, the fault is caused when a large number of packets are generated in the network, and the CPU is too busy to handle received messages in time. Therefore, the message queue becomes full and the received subsequent data is discarded.


  1. Reduce the workload of the CPU by canceling some processes that are CPU-time consuming and unnecessary.
  2. If possible, wait till the CPU is idle and then configure relevant tasks.
  3. Collect log information and configuration information, and then contact technical support personnel.
Updated: 2019-08-21

Document ID: EDOC1000142069

Views: 569928

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