mysql查询问题，急 - Java / Java EE

使用mysql的jdbc driver连接mysql数据库。经常出现下面的查询，请问是干啥的？

/* mysql-connector-java-5.1.6 ( Revision: ${svn.Revision} ) */SHOW
VARIABLES WHERE Variable_name ='language' OR Variable_name = 'net_write_timeout' OR
Variable_name = 'interactive_timeout' OR Variable_name = 'wait_timeout' OR Variable_name
= 'character_set_client' OR Variable_name = 'character_set_connection' OR Variable_name =
'character_set' OR Variable_name = 'character_set_server' OR Variable_name =
'tx_isolation' OR Variable_name = 'transaction_isolation' OR Variable_name =
'character_set_results' OR Variable_name = 'timezone' OR Variable_name = 'time_zone' OR
Variable_name = 'system_time_zone' OR Variable_name = 'lower_case_table_names' OR
Variable_name = 'max_allowed_packet' OR Variable_name = 'net_buffer_length' OR
Variable_name = 'sql_mode' OR Variable_name = 'query_cache_type' OR Variable_name =
'query_cache_size' OR Variable_name = 'init_connect'

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估计驱动包版本有问题吧

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不了解，去下个最新的驱动包看看吧

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感觉是否是connector在维护连接池里的连接？或者说是测试连接池里的链接是否可用？高人快出现吧

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重装......................

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补充一点，并没有导致程序出错或者不能运行，只是从mysql的show full processlist中看到大量这种查询，不明白是咋回事，因此请教各位高人，这些东东是怎么来的

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引用

补充一点，并没有导致程序出错或者不能运行，只是从mysql的show full process