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New diagnostic checking that max_allowed_packet is at least 64M or issue warning, and recommend 128M #1781

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robocoder opened this issue Oct 24, 2010 · 1 comment · Fixed by #13497
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Task Indicates an issue is neither a feature nor a bug and it's purely a "technical" change.
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@robocoder
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From http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html

When a MySQL client or the mysqld server receives a packet bigger than max_allowed_packet bytes, it issues a Packet too large error and closes the connection. With some clients, you may also get a Lost connection to MySQL server during query error if the communication packet is too large.

Default server configuration is 1MB. For larger sites, it needs to be increased to MEDIUMBLOB (16MB).

@robocoder robocoder added this to the Future releases milestone Jul 8, 2014
@mattab mattab modified the milestones: Long term, Mid term Dec 23, 2015
@mattab mattab modified the milestones: Long term, Mid term Dec 5, 2016
@Emerson
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Emerson commented Jan 17, 2017

Know this is not high priority, but wanted to chime in and mention that I'm seeing this pretty often.

@mattab mattab changed the title Installation (MySQL): test for max_allowed_packet New diagnostic checking that max_allowed_packet is at least 64M or issue warning, and recommend 128M Aug 25, 2018
@mattab mattab modified the milestones: Backlog (Help wanted), 3.7.0 Aug 25, 2018
@tsteur tsteur self-assigned this Sep 28, 2018
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