MySQL 日志中的虚假信息

Question

我最近启用了将一般查询记录到我的本地 MySQL 服务器。

它成功了（尽管可能有点太成功了），因为日志包含很多 'spurious' 信息，我不知道这些信息是从哪里来的。它肯定不是来自我的查询。

我的查询是：

select * from CT_DATASET where ID >= 0 and ID <= 1000

在 general_log 这是我找到的：

160204 14:05:13    36 Connect   root@localhost on cTLarge
           36 Query /* mysql-connector-java-5.1.38 ( Revision: fe541c166cec739c74cc727c5da96c1028b4834a ) */SELECT  @@session.auto_increment_increment AS auto_increment_increment, @@character_set_client AS character_set_client, @@character_set_connection AS character_set_connection, @@character_set_results AS character_set_results, @@character_set_server AS character_set_server, @@init_connect AS init_connect, @@interactive_timeout AS interactive_timeout, @@license AS license, @@lower_case_table_names AS lower_case_table_names, @@max_allowed_packet AS max_allowed_packet, @@net_buffer_length AS net_buffer_length, @@net_write_timeout AS net_write_timeout, @@query_cache_size AS query_cache_size, @@query_cache_type AS query_cache_type, @@sql_mode AS sql_mode, @@system_time_zone AS system_time_zone, @@time_zone AS time_zone, @@tx_isolation AS tx_isolation, @@wait_timeout AS wait_timeout
           36 Query SET character_set_results = NULL
           36 Query SET autocommit=1
           36 Query SET net_write_timeout=600
           36 Query select * from CT_DATASET where ID >= 0 and ID <= 5000000
160204 14:05:39    36 Query SET net_write_timeout=60
           36 Quit

它给了我我需要的信息（在本例中是查询执行时间），但我不知道初始 SELECT 来自哪里，最好删除它（以及所有的@@parameters_x AS parameters_x 'redundant' 信息）因为它确实使日志混乱。

我如何 may/can 从日志中删除此信息（同时仍保留日志中的其他信息）

顺便说一下，相应的 'slow' 日志要简洁得多：

# Time: 160204 14:05:39
# User@Host: root[root] @ localhost [127.0.0.1]  Id:    36
# Query_time: 26.232623  Lock_time: 0.000000 Rows_sent: 4929568  Rows_examined: 4929568
SET timestamp=1454591139;
select * from CT_DATASET where ID >= 0 and ID <= 5000000;

Answer 1

您正在使用 mysql-连接器-java-5.1.38。检查 https://dev.mysql.com/downloads/connector/j/ 处的源代码显示：

StringBuilder queryBuf = new StringBuilder(versionComment).append("SELECT");
                queryBuf.append("  @@session.auto_increment_increment AS auto_increment_increment");
                queryBuf.append(", @@character_set_client AS character_set_client");
                queryBuf.append(", @@character_set_connection AS character_set_connection");
                queryBuf.append(", @@character_set_results AS character_set_results");
                queryBuf.append(", @@character_set_server AS character_set_server");
                queryBuf.append(", @@init_connect AS init_connect");
                queryBuf.append(", @@interactive_timeout AS interactive_timeout");

库正在执行查询并且正在正确记录。

您可以告诉 mysql 不要记录这些行。从 https://dev.mysql.com/doc/refman/5.7/en/mysql-command-options.html#option_mysql_histignore :

--histignore

A colon-separated list of one or more patterns specifying statements to ignore for logging purposes. These patterns are added to the default pattern list ("IDENTIFIED:PASSWORD"). The value specified for this option affects logging of statements written to the history file, and to syslog if the --syslog option is given. For more information, see Section 4.5.1.3, “mysql Logging”.

我没有测试过，但你可以试试：

histignore="*IDENTIFIED*:*PASSWORD*:*mysql-connector-java*"

在您的 my.cnf 文件中。

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