# The client message queue is full.What should I do if I keep reporting the error?

**URL:** <https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419>\
**Category:** HiveMQ Community Edition\
**Created:** [January 4, 2021, 6:55am UTC](https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419 "2021-01-04T06:55:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![linkr](https://avatars.discourse-cdn.com/v4/letter/l/e9c0ed/32.png) [@linkr](https://community.hivemq.com/u/linkr)\
**Post date:** [January 4, 2021, 6:55am UTC](https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419/1 "2021-01-04T06:55:16Z")

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Outgoing publish message was dropped. Receiving client: asyncMqtt90iu2z, topic: ad/c/r, qos: 1, reason: The client message queue is full.

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**Author:** ![sauroter](https://yyz1.discourse-cdn.com/flex035/user_avatar/community.hivemq.com/sauroter/32/18_2.png) [@sauroter](https://community.hivemq.com/u/sauroter)\
**Post date:** [January 5, 2021, 9:26am UTC](https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419/2 "2021-01-05T09:26:41Z")

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Hi @linkr,

this log message is an indication that the client with id _asyncMqtt90iu2z_ is not consuming its MQTT PUBLISHEs.

This can basically have two reasons:

1. The client has a [persistent session](https://www.hivemq.com/blog/mqtt-essentials-part-7-persistent-session-queuing-messages/) but is currently not connected to the broker.

2. The client is connected but is consuming messages ([sending the corresponding PUBACK, etc](https://www.hivemq.com/blog/mqtt-essentials-part-6-mqtt-quality-of-service-levels/).) not fast enough. This could be due to a bug in the client implementation or its just too much load for one client. If the later is the case, [shared subscriptions](https://www.hivemq.com/blog/mqtt5-essentials-part7-shared-subscriptions/) can help alleviate the problem.

I wish you a great 2021

Georg

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**Author:** ![linkr](https://avatars.discourse-cdn.com/v4/letter/l/e9c0ed/32.png) [@linkr](https://community.hivemq.com/u/linkr)\
**Post date:** [January 7, 2021, 1:52am UTC](https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419/3 "2021-01-07T01:52:20Z")

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HI,@ [sauroter](https://community.hivemq.com/u/sauroter)  
Thank you very much for your answers,  
Corresponding to the 1 answer persistent conversation, is it because the message does not have a corresponding topic consumer consumer message?  
Corresponding to 2 is because the client cannot consume the accumulated data normally?

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**Author:** ![linkr](https://avatars.discourse-cdn.com/v4/letter/l/e9c0ed/32.png) [@linkr](https://community.hivemq.com/u/linkr)\
**Post date:** [January 7, 2021, 2:01am UTC](https://community.hivemq.com/t/the-client-message-queue-is-full-what-should-i-do-if-i-keep-reporting-the-error/419/4 "2021-01-07T02:01:24Z")

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Can I delete the data/persistence/client\_queue file to alleviate the problem of queue congestion? Will deleting the file affect the normal operation of the system?..