ERROR: Got an error writing communication packets

I'm running a query and then I encountered this error:

2023-05-24 12:20:07 36700 [Warning] Aborted connection 36700 to db: 'unconnected' user: 'testuser' host: '10.137.24.218' (Got an error writing communication packets) 2023-05-24 12:20:50 36701 [Warning] Aborted connection 36701 to db: 'unconnected' user: 'testuser' host: '10.136.52.117' (Got an error writing communication packets)

Here's my configuration:

MariaDB [(none)]> SHOW VARIABLES LIKE 'max_allowed_packet'; +--------------------+------------+

Variable_name     Value     

+--------------------+------------+

max_allowed_packet1073741824

+--------------------+------------+

MariaDB [(none)]> SHOW VARIABLES LIKE '%timeout%'; +---------------------------------------+----------+

Variable_name                        Value   

+---------------------------------------+----------+

connect_timeout                      28800   
deadlock_timeout_long                50000000
deadlock_timeout_short               10000   
delayed_insert_timeout               300     
idle_readonly_transaction_timeout    0       
idle_transaction_timeout             0       
idle_write_transaction_timeout       0       
innodb_flush_log_at_timeout          1       
innodb_lock_wait_timeout             50      
innodb_rollback_on_timeout           ON      
interactive_timeout                  28800   
lock_wait_timeout                    86400   
net_read_timeout                     28800   
net_write_timeout                    28800   
rpl_semi_sync_master_timeout         1000    
rpl_semi_sync_slave_kill_conn_timeout5       
slave_net_timeout                    60      
thread_pool_idle_timeout             60      
wait_timeout                         28800   

+---------------------------------------+----------+

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