mysqltuner を使用して、Wordpress Web サイトのいくつかの問題の背後にある問題の一種のビジョンを持とうとしていますが、実行時に問題はほとんどありません (ほとんどの場合、実行に失敗したか、コードが返されました: 256)。
まず、次のことを行いました。
wget https://raw.githubusercontent.com/major/MySQLTuner-perl/master/mysqltuner.pl
そしてそれを実行します：
perl mysqltuner.pl
しかし、これは私たちが得るものです:
>> MySQLTuner 1.6.9 - Major Hayden <major@mhtx.net>
>> Bug reports, feature requests, and downloads at http://mysqltuner.com/
>> Run with '--help' for additional options and output filtering
[--] Skipped version check for MySQLTuner script
[!!] failed to execute: SELECT VERSION()
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SHOW /*!50000 GLOBAL */ VARIABLES
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SHOW /*!50000 GLOBAL */ STATUS
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SHOW ENGINES
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SHOW SLAVE STATUS\G
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SHOW SLAVE HOSTS
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: \s
[!!] FAIL Execute SQL / return code: 256
Use of uninitialized value $myvar{"version"} in pattern match (m//) at
mysqltuner.pl line 1526 (#1)
(W uninitialized) An undefined value was used as if it were already
defined. It was interpreted as a "" or a 0, but maybe it was a mistake.
To suppress this warning assign a defined value to your variables.
To help you figure out what was undefined, perl will try to tell you the
name of the variable (if any) that was undefined. In some cases it cannot
do this, so it also tells you what operation you used the undefined value
in. Note, however, that perl optimizes your program and the operation
displayed in the warning may not necessarily appear literally in your
program. For example, "that $foo" is usually optimized into "that "
. $foo, and the warning will refer to the concatenation (.) operator,
even though there is no . in your program.
Use of uninitialized value $mysqlvermajor in numeric gt (>) at mysqltuner.pl
line 1552 (#1)
Use of uninitialized value $mysqlvermajor in numeric eq (==) at mysqltuner.pl
line 1552 (#1)
Use of uninitialized value $myvar{"version"} in concatenation (.) or string at
mysqltuner.pl line 1531 (#1)
[!!] Your MySQL version is EOL software! Upgrade soon!
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -------------------------------------------
[!!] failed to execute: SHOW DATABASES
[!!] FAIL Execute SQL / return code: 256
[--] Status: -Archive -BDB -Federated -InnoDB -ISAM -NDBCluster
[OK] Total fragmented tables: 0
[!!] failed to execute: SELECT ~0
[!!] FAIL Execute SQL / return code: 256
-------- Security Recommendations -------------------------------------------
Use of uninitialized value $myvar{"version"} in pattern match (m//) at
mysqltuner.pl line 1345 (#1)
[!!] failed to execute: SELECT CONCAT(user, '@', host) FROM mysql.user WHERE TRIM(USER) = '' OR USER IS NULL
[!!] FAIL Execute SQL / return code: 256
[OK] There are no anonymous accounts for any database users
[!!] failed to execute: SELECT CONCAT(user, '@', host) FROM mysql.user WHERE (password = '' OR password IS NULL) AND plugin NOT IN ('unix_socket', 'win_socket')
[!!] FAIL Execute SQL / return code: 256
[OK] All database users have passwords assigned
[!!] failed to execute: SELECT CONCAT(user, '@', host) FROM mysql.user WHERE CAST(password as Binary) = PASSWORD(user) OR CAST(password as Binary) = PASSWORD(UPPER(user)) OR CAST(password as Binary) = PASSWORD(UPPER(LEFT(User, 1)) + SUBSTRING(User, 2, LENGTH(User)))
[!!] FAIL Execute SQL / return code: 256
[!!] failed to execute: SELECT CONCAT(user, '@', host) FROM mysql.user WHERE HOST='%'
[!!] FAIL Execute SQL / return code: 256
[!!] There is no basic password file list!
-------- CVE Security Recommendations ---------------------------------------
[--] Skipped due to --cvefile option undefined
Use of uninitialized value $mystat{"Questions"} in numeric lt (<) at
mysqltuner.pl line 1868 (#1)
[!!] Your server has not answered any queries - cannot continue...
何が問題なのかわかりません。よろしくお願いします！