我的MySQL服务器有问题。它刚刚安装在我的托管服务器上，我使用WP Engine安装了第一个Web。
MySQL服务没有持有..它一直崩溃。 我用过
./mysqltuner.pl
以下是结果：
[OK] Currently running supported MySQL version 5.5.44
[OK] Operating on 64-bit architecture
-------- Storage Engine Statistics -------------------------------------------
[--] Status: +ARCHIVE +BLACKHOLE +CSV -FEDERATED +InnoDB +MRG_MYISAM
[--] Data in InnoDB tables: 18M (Tables: 19)
[!!] Total fragmented tables: 19
-------- Security Recommendations -------------------------------------------
[!!] User '@centos65x64basic.localdomain' is an anonymous account.
[!!] User '@localhost' is an anonymous account.
[!!] User '@centos65x64basic.localdomain' has no password set.
[!!] User '@localhost' has no password set.
[!!] User '@centos65x64basic.localdomain' has user name as password.
[!!] User '@localhost' has user name as password.
[!!] There is not basic password file list !
-------- Performance Metrics -------------------------------------------------
[--] Up for: 11s (10 q [0.909 qps], 7 conn, TX: 10K, RX: 713)
[--] Reads / Writes: 100% / 0%
[--] Binary logging is disabled
[--] Total buffers: 176.0M global + 2.8M per thread (151 max threads)
[OK] Maximum reached memory usage: 591.3M (59% of installed RAM)
[OK] Maximum possible memory usage: 596.0M (59.82% of installed RAM)
[OK] Slow queries: 0% (0/10)
[OK] Highest usage of available connections: 0% (1/151)
[!!] Aborded connections: 14.29% (1/7)
[!!] Key buffer used: 18.8% (3K used / 16K cache)
[!!] Key buffer size / total MyISAM indexes: 16.0K/97.0K
[!!] Query cache efficiency: 0.0% (0 cached / 4 selects)
[OK] Query cache prunes per day: 0
[OK] Temporary tables created on disk: 0% (0 on disk / 2 total)
[OK] Thread cache hit rate: 85% (1 created / 7 connections)
[OK] Table cache hit rate: 78% (26 open / 33 opened)
[OK] Open file limit used: 1% (18/1K)
[OK] Table locks acquired immediately: 100% (36 immediate / 36 locks)
[!!] Connections aborted: 14%
-------- InnoDB Metrics -----------------------------------------------------
[--] InnoDB is enabled.
[OK] InnoDB buffer pool / data size: 128.0M/18.6M
[OK] InnoDB buffer pool instances: 1
[!!] InnoDB Used buffer: 4.96% (406 used/ 8192 total)
[OK] InnoDB Read buffer efficiency: 93.67% (6018 hits/ 6425 total)
[!!] InnoDB Write buffer efficiency: 0.00% (0 hits/ 1 total)
[OK] InnoDB log waits: 0.00% (0 waits / 1 writes)
-------- Replication Metrics -------------------------------------------------
[--] No replication slave(s) for this server.
[--] This is a standalone server..
-------- Recommendations -----------------------------------------------------
General recommendations:
Run OPTIMIZE TABLE to defragment tables for better performance
Remove Anonymous User account - there is 2 Anonymous account.
Set up a Password for user with the following SQL statement ( SET PASSWORD FOR 'user'@'SpecificDNSorIp' = PASSWORD('secure_password'); )
Set up a Secure Password for user@host ( SET PASSWORD FOR 'user'@'SpecificDNSorIp' = PASSWORD('secure_password'); )
MySQL started within last 24 hours - recommendations may be inaccurate
Enable the slow query log to troubleshoot bad queries
Reduce or eliminate unclosed connexions and network issues
Your applications are not closing MySQL connections properly
Variables to adjust:
key_buffer_size (~ 3K)
key_buffer_size (> 97.0K)
query_cache_limit (> 128M, or use smaller result sets)
首先 - 我不确定这些建议是什么？ （它已经24小时以及更多 - 因为我运行了MySQL）
我不能满足这些建议，因为它们彼此矛盾 - 任何想法应该做什么？
此外.. 我的日志文件中有以下内容：
150720 5:12:33 [Note] /usr/libexec/mysqld: Normal shutdown
150720 5:12:33 [Note] Event Scheduler: Purging the queue. 0 events
150720 5:12:33 InnoDB: Starting shutdown...
150720 5:12:35 InnoDB: Shutdown completed; log sequence number 56874574
150720 5:12:35 [Note] /usr/libexec/mysqld: Shutdown complete
150720 05:12:35 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
150720 05:12:35 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql
150720 5:12:35 [Note] /usr/libexec/mysqld (mysqld 5.5.44) starting as process 2785 ...
150720 5:12:35 [Note] Plugin 'FEDERATED' is disabled.
150720 5:12:35 InnoDB: The InnoDB memory heap is disabled
150720 5:12:35 InnoDB: Mutexes and rw_locks use GCC atomic builtins
150720 5:12:35 InnoDB: Compressed tables use zlib 1.2.3
150720 5:12:35 InnoDB: Using Linux native AIO
150720 5:12:35 InnoDB: Initializing buffer pool, size = 128.0M
150720 5:12:35 InnoDB: Completed initialization of buffer pool
150720 5:12:35 InnoDB: highest supported file format is Barracuda.
150720 5:12:35 InnoDB: Waiting for the background threads to start
150720 5:12:36 InnoDB: 5.5.44 started; log sequence number 56874574
150720 5:12:36 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306
150720 5:12:36 [Note] - '0.0.0.0' resolves to '0.0.0.0';
150720 5:12:36 [Note] Server socket created on IP: '0.0.0.0'.
150720 5:12:36 [Note] Event Scheduler: Loaded 0 events
150720 5:12:36 [Note] /usr/libexec/mysqld: ready for connections.
Version: '5.5.44' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server (GPL) by Remi
一切正常吗？ 为什么在IP上显示0.0.0.0？
请帮我解决MySQL的性能问题，这样我就不会崩溃：）