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Bug #11766769: 59959: SMALL VALUES OF --MAX-ALLOWED-PACKET

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max_allowed_packet works in conjunction with net_buffer_length.
max_allowed_packet is an upper bound of net_buffer_length.
So it doesn't make sense to set the upper limit lower than the value.
Added a warning (using ER_UNKNOWN_ERRROR and a specific message)
when this is done (in the log at startup and when setting either 
max_allowed_packet or the net_buffer_length variables)
Added a test case.
Fixed several tests that broke the above rule.
This commit is contained in:
Georgi Kodinov
2011-03-25 12:57:27 +02:00
parent 4518a0ee8a
commit dcf6b68d08
8 changed files with 102 additions and 4 deletions
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mysql-test/r/packet.result
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@ -3,6 +3,7 @@ set @net_buffer_length=@@global.net_buffer_length;
set global max_allowed_packet=100;
Warnings:
Warning 1292 Truncated incorrect max_allowed_packet value: '100'
Warning 1105 The value of 'max_allowed_packet' should be no less than the value of 'net_buffer_length'
set global net_buffer_length=100;
Warnings:
Warning 1292 Truncated incorrect net_buffer_length value: '100'