当我在singel服务器上安装了mysql集群时，我遇到启动mysql的问题。
我已经读过一些地方，如果你安装Mysql集群，你不必下载MySQL服务器或客户端（apt-get install mysql-server / client） 这些将最终陷入冲突。 Mysql数据包应该在我从here下载的mysql-cluster-gpl-7.4.7-linux-glibc2.5-x86_64文件中。
但是如何在没有安装mysql-server或client的情况下启动mysql？
如果我在提示中写mysql，我会收到以下错误消息：
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)
如果我搜索“mysql-cluster-gpl-7.4.7-linux-glibc2.5-x86_64”，那么我找不到任何匹配的文件到mysqld.sock
我也尝试启动mysqld，但我有很多错误。
2015-08-19 14:52:00 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2015-08-19 14:52:00 4208 [ERROR] Can't find messagefile '/usr/local/mysql-cluster-gpl-7.4.7-linux-glibc2.5-x86_64/share/mysql/errmsg.sys'
2015-08-19 14:52:00 4208 [Warning] Can't create test file /usr/local/mysql/data/Idrottskoll.lower-test
2015-08-19 14:52:00 4208 [Warning] Can't create test file /usr/local/mysql/data/Idrottskoll.lower-test
2015-08-19 14:52:00 4208 [Warning] Buffered warning: Changed limits: max_open_files: 1024 (requested 5000)
2015-08-19 14:52:00 4208 [Warning] Buffered warning: Changed limits: table_cache: 431 (requested 2000)
2015-08-19 14:52:00 4208 [Note] Plugin 'FEDERATED' is disabled.
mysqld: Unknown error 1017
2015-08-19 14:52:00 4208 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it.
2015-08-19 14:52:00 4208 [Note] InnoDB: Using atomics to ref count buffer pool pages
2015-08-19 14:52:00 4208 [Note] InnoDB: The InnoDB memory heap is disabled
2015-08-19 14:52:00 4208 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2015-08-19 14:52:00 4208 [Note] InnoDB: Compressed tables use zlib 1.2.8
2015-08-19 14:52:00 4208 [Note] InnoDB: Using Linux native AIO
2015-08-19 14:52:00 4208 [Note] InnoDB: Using CPU crc32 instructions
2015-08-19 14:52:00 4208 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2015-08-19 14:52:00 4208 [Note] InnoDB: Completed initialization of buffer pool
2015-08-19 14:52:00 4208 [ERROR] InnoDB: ./ibdata1 can't be opened in read-write mode
2015-08-19 14:52:00 4208 [ERROR] InnoDB: The system tablespace must be writable!
2015-08-19 14:52:00 4208 [ERROR] Plugin 'InnoDB' init function returned error.
2015-08-19 14:52:00 4208 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
2015-08-19 14:52:00 4208 [ERROR] mysqld: unknown option '--ndbcluster'
2015-08-19 14:52:00 4208 [ERROR] Aborting
2015-08-19 14:52:00 4208 [Note] Binlog end
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'partition'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_FIELDS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_INDEXES'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_SYS_TABLES'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_CONFIG'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_DELETED'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_METRICS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMPMEM'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMP_RESET'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_CMP'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_LOCK_WAITS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_LOCKS'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'INNODB_TRX'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'ARCHIVE'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'BLACKHOLE'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'CSV'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'MRG_MYISAM'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'MEMORY'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'MyISAM'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'sha256_password'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'mysql_old_password'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'mysql_native_password'
2015-08-19 14:52:00 4208 [Note] Shutting down plugin 'binlog'
2015-08-19 14:52:00 4208 [Note]
我显然是编程新手，并且可以真正使用你的帮助来解释mysql如何与mysql集群一起工作。
我已按照以下link安装mysql集群：
Mysql Cluster似乎有效：
[ndbd(NDB)] 1 node(s)
id=2 @46.21.99.140 (mysql-5.6.25 ndb-7.4.7, Nodegroup: 0, *)
[ndb_mgmd(MGM)] 1 node(s)
id=1 @46.21.99.140 (mysql-5.6.25 ndb-7.4.7)
[mysqld(API)] 1 node(s)
id=3 @46.21.99.140 (mysql-5.6.25 ndb-7.4.7)
如果我输入：ps aux | grep mysql
root 3800 0.0 0.0 4440 752 ? S 14:24 0:00 /bin/sh /usr/local/mysql/bin/mysqld_safe --datadir=/usr/local/mysql/data --pid-file=/usr/local/mysql/data/myname.pid
mysql 3951 0.4 5.7 1514076 465052 ? Sl 14:24 0:05 /usr/local/mysql/bin/mysqld --basedir=/usr/local/mysql --datadir=/usr/local/mysql/data --plugin-dir=/usr/local/mysql/lib/plugin --user=mysql --log-error=/usr/local/mysql/data/myname.err --pid-file=/usr/local/mysql/data/myname.pid --socket=/tmp/mysql.sock
my.cnf
[mysqld]
# Options for mysqld process:
ndbcluster # run NDB storage engine
basedir = /usr/local/mysql
datadir = /usr/local/mysql/data
#socket= /tmp/mysql.sock
[mysql_cluster]
# Options for MySQL Cluster processes:
ndb-connectstring=xx.xx.xx.xxx # location of management server
答案 0 :(得分：0)
现在它有效！我用socket = / var / run / mysqld / mysqld.sock替换了#socket = /tmp/mysql.sock并删除了注释。创建了一个名为mysqld的文件夹和一个名为mysqld.sock的文件夹中的新文件。
重新启动mysql后启动了！
感谢Marc B的帮助！